Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-05-02T19:07:13Z No. of bitstreams: 1 2014 - Rafael Sanches Pacheco.pdf: 1387070 bytes, checksum: c73e833c8d495bf472f647befeedd57e (MD5) / Made available in DSpace on 2018-05-02T19:07:13Z (GMT). No. of bitstreams: 1 2014 - Rafael Sanches Pacheco.pdf: 1387070 bytes, checksum: c73e833c8d495bf472f647befeedd57e (MD5) Previous issue date: 2014-08-19 / CNPq / The 15N natural abundance technique to measure the biological nitrogen fixation (BNF) in legumes is based on the slight enrichment of 15N observed in soils to the atmosphere and does not require the application of labelled fertilizers. The objectives of this work were: to quantify the BNF contribution in common bean (Phaseolus vulgaris) cultivars under field conditions through the 15N natural abundance technique; to evaluate the agronomic performance of these cultivars under inoculation; to estimate the isotopic fractionation value during BNF (B value) of common bean cultivars grown in nutrient solution. Two experiments were conducted in greenhouse in nutrient solution without N, in the years 2012 and 2013 in Serop?dica, RJ. Three common bean cultivars were evaluated. Plant biomass was sampled at different growth stages, where the N natural abundance was analyzed. In 2012 experiment, the nodules showed positive ?15N, with deltas of 6.63? and 8.18? in Grafite and Radiante cultivars, respectively. The B value in shoot was ?0.919?, ?0.734? and ?0.724? for cultivars Grafite, Ouro Negro and Radiante, respectively. In 2013 experiment, the nodules showed great enrichment in 15N, with 9.11? and 8.36? deltas in Radiante and Grafite cultivars. The B value in shoot was -1.06? and -1.40? for cultivars Radiante and Grafite, respectively. The average B value in shoots of common bean cultivars was ?1.23?, and the B value of ?1.2 was used in the calculation of the BNF contribution in the field experiments of this study. Eight common bean cultivars were grown in field conditions in 2011 and 2012, with two N sources (inoculation with commercial inoculant with rizhobia or fertilization with 90 kg ha-1 of mineral N), with four replications, at Embrapa Rice and Bean in Santo Antonio de Goias, GO. Biomass of the shoot, root, nodules and grains were sampled, and total N and 15N natural abundance were analyzed in shoots and grains. In the experiment in 2011, the Ouro Negro cultivar produced higher nodule mass under inoculation, also at reproductive stages, and the Jalo Precoce and Radiante cultivars showed the lowest nodule mass. The grain yield of the eight cultivars was 1614 and 2942 kg ha-1 under inoculation or mineral N, respectively. Under inoculation, the Ouro Negro cultivar showed the highest N accumulation in shoots and grains and the highest grain yield, reaching 2200 kg ha-1, equivalent to 73% of yield under mineral N. In 2011, the N accumulation derived from BNF in grains of the eight cultivars ranged from 5.8 to 16.4 kg ha-1, which corresponded to a BNF contribution of 17% and 33% in Marfim and Ouro Negro cultivars, respectively. In 2012, the higher nodule mass occurred in Vereda and Estilo cultivars, in the first and second samples, respectively, whereas Radiante cultivar had the lowest nodule mass. The average grain yield of the eight cultivars was 3284 and 3919 kg ha-1 under inoculation and mineral N, respectively. The N accumulation derived from BNF in grains was 68.4, 38.7, and 21.6 kg ha-1 in Ouro Negro, Grafite and Radiante cultivars, respectively, corresponding to a BNF contribution of 49, 29 and 32%. The method of 15N natural abundance provided the identification of BNF potential for the supply of N in different common bean genotypes, arising as a tool for providing subsidies to guide breeding programs in order to increase BNF efficiency. / A t?cnica da abund?ncia natural de 15N para mensurar a fixa??o biol?gica de nitrog?nio (FBN) em leguminosas baseia-se no ligeiro enriquecimento de 15N observado nos solos em rela??o ? atmosfera e n?o exige a aplica??o de fertilizantes marcados. Os objetivos deste trabalho foram: quantificar, atrav?s da t?cnica da abund?ncia natural de 15N, a contribui??o da FBN em cultivares de feijoeirocomum (Phaseolus vulgaris) em condi??es de campo; avaliar o desempenho agron?mico dessas cultivares sob inocula??o; estimar o valor do fracionamento isot?pico durante a FBN (valor B) de cultivares de feijoeiro crescidas em solu??o nutritiva. Foram conduzidos dois experimentos em casa de vegeta??o, em solu??o nutritiva isenta de N, nos anos de 2012 e 2013, em Serop?dica, RJ. Foram avaliadas tr?s cultivares de feijoeiro, efetuando-se coletas de biomassa em diferentes est?dios e analisando-se a abund?ncia natural de 15N do material vegetal. No experimento em 2012, os n?dulos apresentaram ?15N positivo, com deltas de 6,63? e 8,18? nas cultivares Grafite e Radiante, respectivamente. O valor B da parte a?rea foi de ?0,92?, ?0,73? e ?0,72?, nas cultivares Grafite, Ouro Negro e Radiante, respectivamente. No experimento em 2013, os n?dulos apresentaram deltas de 9,11? e 8,36? nas cultivares Radiante e Grafite. O valor B da parte a?rea foi de ?1,06? e ?1,40? nas cultivares Radiantee Grafite, respectivamente. O valor B m?dio da parte a?rea das cultivares foi de ?1,23?, sendo o valor B de ?1,2 utilizado nos c?lculos da contribui??o da FBN nos experimentos de campo desse estudo. Oito cultivares de feijoeiro foram crescidas em condi??es de campo em 2011 e 2012, sob duas fontes de N (inocula??o com inoculante comercial com riz?bio ou aduba??o com 90 kg ha-1 de N mineral), com quatro repeti??es, na Embrapa Arroz e Feij?o, em Santo Antonio de Goi?s, GO. Foram efetuadas amostragens de biomassa de parte a?rea, raiz, n?dulos e gr?os e an?lises de N total e abund?ncia natural de 15N na parte a?rea e gr?os. No experimento em 2011, a cultivar Ouro Negro produziu maior massa de n?dulos sob inocula??o, inclusive nos est?dios reprodutivos, e as cultivares Jalo Precoce e Radiante apresentaram a menor massa de n?dulos. O rendimento m?dio de gr?os das oito cultivares foi de 1614 e 2942 kg ha-1 sob inocula??o ou N mineral, respectivamente. Sob inocula??o, a cultivar Ouro Negro apresentou os maiores ac?mulos de N na parte a?rea e nos gr?os e a maior produtividade, atingindo 2200 kg ha-1 de gr?os, equivalente a 73% da produ??o sob N mineral. Em 2011, o ac?mulo de N derivado da FBN nos gr?os das oito cultivares variou de 5,8 a 16,4 kg ha-1, que correspondeu a 17% e 33% de contribui??o da FBN nas cultivares Marfim e Ouro Negro, respectivamente. Em 2012, a maior massa de n?dulos ocorreu nas cultivares Vereda e Estilo, na primeira e segunda coletas, respectivamente, e a cultivar Radiante apresentou a menor massa de n?dulos. O rendimento m?dio de gr?os das oito cultivares foi de 3284 e 3919 kg ha-1 sobinocula??o e N mineral, respectivamente. O ac?mulo de N derivado da FBN nos gr?os foi de 68,4 kg ha-1 na cultivar Ouro Negro, 38,7 kg ha-1 na cultivar Grafite e 21,6 kg ha-1 na cultivar Radiante, que correspondeu a 49, 29 e 32% de contribui??o da FBN, respectivamente. A t?cnica da abund?ncia natural de 15N possibilita a identifica??o do potencial de FBN para o fornecimento de N em diferentes gen?tipos de feijoeiro, e mostra-se como uma ferramenta capaz de fornecer subs?dios para orientar os programas de melhoramento da esp?cie, visando aumentar a efici?ncia da FBN.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-01-06T13:28:20Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) graziela_taroco.pdf: 2989194 bytes, checksum: a96e95e60ba666acde3399249ccd46f0 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-01-31T16:59:07Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) graziela_taroco.pdf: 2989194 bytes, checksum: a96e95e60ba666acde3399249ccd46f0 (MD5) / Made available in DSpace on 2017-01-31T16:59:07Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) graziela_taroco.pdf: 2989194 bytes, checksum: a96e95e60ba666acde3399249ccd46f0 (MD5) Previous issue date: 2016 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Em esp?cies de interesse zoot?cnico as caracter?sticas de import?ncia econ?mica, como o crescimento dos animais, podem apresentar diferen?as produtivas as quais s?o atribu?das ? influ?ncia dos efeitos gen?ticos e ambientais. Desta forma, a intera??o gen?tipo-ambiente pode ocasionar mudan?as nas vari?ncias dos valores gen?ticos e/ou na classifica??o destes animais. Objetivou-se com o presente trabalho estimar curvas de crescimento de codornas de corte, dos grupos gen?ticos LF1 e LF2, alimentadas com diferentes rela??es de treonina:lisina na dieta, por meio dos modelos Gompertz, Log?stico, Richards e von Bertalanffy, bem como predizer os par?metros gen?ticos da curva de crescimento para peso corporal aos 35 dias de idade, peso assint?tico, taxa de crescimento absoluto e ponto de inflex?o e avaliar a exist?ncia de intera??o gen?tipo ? ambiente para a express?o destas caracter?sticas. Na primeira fase do experimento, do nascimento aos 21 dias de idade, as codornas foram alimentadas com dietas contendo rela??es 0,66, 0,71, 0,76, 0,81 e 0,86% de treonina:lisina. Dos 22 aos 35 dias de idade, as codornas receberam dieta ?nica contendo 26,12% de prote?na bruta e 2.900 kcal EM/kg. Na segunda fase, as codornas foram alimentadas com dieta ?nica contendo 24,54% de prote?na bruta e 2.900 EM/Kg, do nascimento aos 21 dias de idade. Dos 22 aos 35 dias de idade as codornas foram alimentadas com dieta contendo rela??es de 0,71, 0,76, 0,81, 0,86 e 0,91% de treonina:lisina. Os diferentes modelos de curva de crescimento foram ajustados e as intera??es foram avaliadas por meio de modelos de regress?o aleat?ria, considerando-se os efeitos fixos de sexo e os efeitos aleat?rios gen?ticos aditivos diretos como fun??es dos n?veis da rela??o treonina:lisina da dieta. Os resultados demonstraram que o modelo Gompertz proporcionou melhor ajuste da curva de crescimento das codornas de corte. As estimativas de herdabilidade foram de moderadas a alta ao longo das rela??es treonina:lisina. As normas de rea??o demonstram a exist?ncia de intera??o gen?tipo ? ambiente para as rela??es treonina:lisina da dieta e, em decorr?ncia disto, ocorrem altera??es na dispers?o dos valores gen?ticos ou na ordem de classifica??o dos m?ritos gen?ticos das codornas. Desta forma, os programas de melhoramento de codornas devem considerar os n?veis de treonina:lisina na dieta das aves, uma vez que esta pode interferir no desempenho dos animais. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / Traits of economic interest in livestock species, such as growth, may have productive differences which are attributed to the influence of genetic and environmental effects. Thus, the genotype-environment interaction may lead to changes in the genetic values variances and / or consequently in the ranking of animals. In this study, we aimed at estimating growth curves for quails from two genetic groups, LF1 and LF2, fed with different threonine: lysine ratios in the diet. The non-linear models tested were Gompertz, Logistic, Richards and von Bertalanffy. We also aimedt at predicting genetic parameters for the growth curve for body weight at 35 days of age, asymptotic weight, absolute growth rate and inflection point and assess the existence of genotype ? environment interaction for the expression of these traits. In the first phase of the experiment, from birth to 21 days of age, quails were fed with diets containing 0.66, 0.71, 0.76, 0.81 and 0.86% of threonine: lysine ratio. From 22 to 35 days of age, quails received a diet containing 26.12% of crude protein and 2,900 kcal / kg. In the second phase, the quails were fed only with a diet containing 24.54% of crude protein and 2,900 ME / kg, from birth to 21 days old. From 22 to 35 days old quails were fed with diets containing 0.71, 0.76, 0.81, 0.86 and 0.91% of threonine: lysine ratio. The different growth curve models were adjusted and interactions were assessed by random regression models, considering the fixed effect of sex and the random effect of direct genetic additive effect, both as functions of the threonine:lysine ratio. The results showed that the Gompertz model provided the best fit for the growth curve of these quails. The heritability estimates were moderate to high for all the threonine: lysine ratios. The reaction norms demonstrated the existence of genotype - environment for threonine:lysine diet and, as a result, changes may occur in the breeding values or sort ordering for the genetic merit of the quails. Therefore, breeding programs must consider the levels of threonine: lysine in the diet of the quails, since it may interfere with the performance of the animals.

Made available in DSpace on 2014-12-17T14:14:03Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-12-12 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / As condi??es ambientais e gen?ticas do indiv?duo podem influenciar no seu potencial de desenvolvimento de diversos fatores como as capacidades motoras, a aptid?o f?sica e da antropometria. Objetivo: objetivo deste estudo foi avaliar a contribui??o gen?tica e ambiental na varia??o das capacidades motoras, aptid?o f?sica e antropometria em pares de g?meos monozigotos (MZ) e dizigotos (DZ). Participaram do estudo 88 g?meos entre 8 e 36 anos, sendo 56 monozigotos (MZ) divididos em 28 mulheres e 28 homens e 32 dizigotos (DZ) divididos em 18 mulheres e 14 homens. As vari?veis estudadas foram: for?a potente de membros inferiores; for?a de membros superiores; velocidade, pot?ncia aer?bica, flexibilidade do quadril, somat?rio de dobras cut?neas, perimetria, massa corporal e estatura. Os dados foram avaliados em estat?stica n?o param?trica, analisados com base na vari?ncia intrapar de g?meos. Aplicou-se a equa??o da herdabilidade (h?) = ((S? DZ S? MZ) / S? DZ) x 100, demonstrando o quanto cada vari?vel possui de car?ter genot?pico e fenot?pico. Foi calculado o intervalo de confian?a (25% - 75%) a partir das medianas encontradas. Como resultado foi encontrado para for?a potente de membros inferiores h? = 85% (77% - 97%) para mulheres e h?= 68% (53% - 75%) para homens. Para for?a isom?trica de membros superiores no sexo feminino h? = 39% (35% - 46%) e no sexo masculino, h?= 73% (53% - 77%). Para a velocidade de deslocamento h?= 67% e 85%, para homens e mulheres, respectivamente. Observou-se que a herdabilidade da flexibilidade apresentou h? com 59% para ambos os sexos, assim como resist?ncia aer?bica,onde h2= 77%, estatura com h?= 64% e somat?rio de dobras cut?neas com h?=97%. Ficou demonstrado que embora a faixa et?ria seja ampla, este fator n?o influenciou os resultados. E ainda que para determinadas capacidades motoras a hereditariedade se apresenta predominante sobre o fator ambiental

Submitted by Verena Pereira (verenagoncalves@uefs.br) on 2018-07-17T21:59:57Z No. of bitstreams: 1 Tese Final_ Danillo Olegario.pdf: 8604713 bytes, checksum: 2e0a9905d4de264fbbd3a8997c3babb3 (MD5) / Made available in DSpace on 2018-07-17T21:59:57Z (GMT). No. of bitstreams: 1 Tese Final_ Danillo Olegario.pdf: 8604713 bytes, checksum: 2e0a9905d4de264fbbd3a8997c3babb3 (MD5) Previous issue date: 2018-03-16 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The goals of this work were to compare and evaluate statistical methods of analysis of adaptability and stability for total protein, minerals and grain yield in cowpea lines, as well as retention of these nutrients after cooking to enable recommendation and registration of new cultivars for the Brazilian semiarid. Forty-four genotypes, distributed in two experiments of different population densities, were evaluated in seven environments, in the states of Bahia, Cear?, Pernambuco and Piau?. Initially, a comparison was made of ten statistical methods of adaptability and stability using only the production data. Spearman correlation coefficients were estimated between the methods. For the assessments of adaptability and stability of the genotypes the methods of Eberhart and Russell, Lin and Binns and the Model of main additive effects and multiplicative interaction - AMMI were applied. To evaluate the effect of cooking, 24 genotypes were used, including ten lines, five commercial cultivars and nine landraces maintained by farmers. The seed protein content was quantified through the Kjeldahl method. and the minerals by the AOAC standard procedure. The statistical analyzes for the experimental designs were performed in the SAS by the GLM procedure. The AMMI method is most suitable due to the graphical arrangement of both the genotypes and the environments and high correlation with others evaluated methods. The use of highly correlated methods is not recommended, as in the cases of Plaisted and Peterson and Wricke and the methods of Annicchiarico and Lin and Binnsthat show strong association and produce similar genotypic classifications. The use of one of them incombination with that of Eberhart and Russell or AMMI can add information to the stability analysis. Statistically significant differences in the genotype as well as in the genotype?environment interaction for minerals, proteins and grain yield were observed in all the assays. The lines presenting the highest protein contents showed the lowest grain yields, and it indicated the prominent ?phenotypic cost? of protein in overall cowpea seed production. The methods by Eberhart and Russell, Lin and Binns and AMMI showed similar results for selection of superior genotypes. For the protein content, the lines C3Q, C3M, C2S and C1J presented grain yields equal to or greater than the general mean of the experiments and average of 27% of protein. For iron and zinc contents, the line C4I and T16_2R presented grain yield equal to or greater than the general mean of the experiments, with mean values of Fe and Zn 15% higher than the values of the evaluated cultivars. For the potassium and calcium contents, the C4I and C3O strains showed grain yield equal to or greater than the general average, with K and Ca means higher than the values of the cultivars evaluated. All the lines mentioned above presented broad adaptability and good stability in the series of evaluated environments showing great potential to be released as new cultivars for the Brazilian semiarid. Cooking had a reduced effect on protein, potassium, calcium, iron and zinc contents in the cowpea beans. The CPCR3F6L17 obtained high grain yield and high levels of protein, potassium, iron and zinc, after cooking, being promising for the region studied / Os objetivos deste trabalho foram comparar e avaliar m?todos estat?sticos de an?lise de adaptabilidade e estabilidade para o teor de prote?nas totais, minerais e produ??o de gr?os em linhagens de feij?o-caupi, bem como a reten??o desses nutrientes ap?s a coc??o, para possibilitar a recomenda??o e registro de novos cultivares para o semi?rido brasileiro. Quarenta e quatro gen?tipos, distribu?dos em dois experimentos de diferentes densidades populacionais, foram avaliados em sete ambientes, nos estados da Bahia, Cear?, Pernambuco e Piau?. Inicialmente, foi realizado acompara??o de dez m?todos estat?sticos de adaptabilidade e estabilidade utilizando apenas dados de produ??o. Coeficientes de correla??o Spearman foram estimados entre os m?todos. Para as avalia??es de adaptabilidade e estabilidade dos gen?tipos aplicou-se os m?todos de Eberhart e Russell, Lin e Binns e o Modelo de efeitos aditivos principais e intera??o multiplicativa - AMMI. Para avaliar o efeito da coc??o, foram utilizados 24 gen?tipos, sendo dez linhagens, cinco cultivares comerciais e nove variedades mantidas por agricultores.A quantifica??o de prote?na total foi realizada pelo m?todo de Kjeldhal, e os minerais pelo procedimento padr?o da AOAC. As an?lises estat?sticas para os delineamentos experimentais foram efetuadas no SAS pelo procedimento GLM. O m?todo AMMI ? o mais indicado devido a disposi??o gr?fica e alta correla??o com os demais m?todos. A utiliza??o de m?todos que apresentam elevada correla??o, como os m?todos Plaisted e Peterson e Wricke, Annicchiarico e Lin e Binns, que mostram forte associa??o, e produzem classifica??es genot?picas similares, n?o ? recomendado. O uso de um deles em combina??o com o de Eberhart e Russell ou AMMI pode agregar informa??o ? an?lise de estabilidade. Foram observadas diferen?as estat?sticas significativas dos quadrados m?dios de tratamentos, dos ambientes e das intera??es ambientes x tratamentos para minerais, prote?nas e produ??o de gr?os. As linhagens que apresentaram os maiores teores de prote?na e minerais apresentaram produ??es de gr?os abaixo da m?dia geral, nos dois experimentos. Os m?todos de Eberhart e Russell, Lin e Binns e o AMMI apresentam resultados semelhantes quanto a sele??o de gen?tipos superiores. Para o teor de prote?na, As linhagens C3Q, C3M, C2S e C1J apresentaram produ??es de gr?os igual ou superior a m?dia geral dos experimentos e m?dia de 27% de prote?na. Para os teores de ferro e zinco, a linhagem C4I e T16_2R apresentou produ??o de gr?os igual ou superior a m?dia geral dos experimentos, com valores m?dios de Fe e Zn, 15% superiores aos valores dos cultivares avaliados. Para os teores de pot?ssio e c?lcio, as linhagens C4I e C3O mostraram rendimento de gr?os igual ou maior do que a m?dia geral, com m?dia de K e Ca mais elevadas do que os valores dos cultivares avaliados. Todas as linhagens citadas anteriormente apresentaram ampla adaptabilidade e boa estabilidade na s?rie de ambientes avaliados mostrando grande potencial para serem lan?ados como novos cultivares para o semi?rido brasileiro. A coc??o teve efeito reduzido nos teores de prote?na, pot?ssio, c?lcio, ferro e zinco, nos gr?os de feij?o-caupi. A linhagem CPCR3F6L17 obteve alta produtividade de gr?os e elevados teores de prote?na, pot?ssio, ferro e zinco, ap?s a coc??o, mostrando-se promissora para a regi?o estudada

Linha de pesquisa: Melhoramento animal. / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2017-09-29T00:35:26Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) diego_coimbra_alcantara.pdf: 1887370 bytes, checksum: 3b18dc6adcb9630901b41a57c4a4a351 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2017-10-09T14:23:40Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) diego_coimbra_alcantara.pdf: 1887370 bytes, checksum: 3b18dc6adcb9630901b41a57c4a4a351 (MD5) / Made available in DSpace on 2017-10-09T14:23:40Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) diego_coimbra_alcantara.pdf: 1887370 bytes, checksum: 3b18dc6adcb9630901b41a57c4a4a351 (MD5) Previous issue date: 2016 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Funda??o de Amparo ? Pesquisa do estado de Minas Gerais (FAPEMIG) / Objetivou-se com este estudo, caracterizar a intera??o gen?tipo x ambiente em codornas de corte, alimentadas com dietas contendo diferentes rela??es de triptofano:lisina, via normas de rea??o. Para realizar o experimento foram utilizadas duas linhagens de codornas de corte, LF1 e LF2. A ra??o fornecida no per?odo de crescimento, nascimento aos 21 dias de idade, continha uma rela??o de 0,20% de triptofano:lisina, e no per?odo final do crescimento, 22 a 35 dias, as codornas foram separadas em 5 tratamentos com as rela??es: 0,15; 0,20; 0,25; 0,30; 0,35% de triptofano:lisina. As aves foram pesadas aos 28 e 35 dias e abatidas aos 35 dias de idade. As caracter?sticas avaliadas foram os pesos pr?-abate, peso 28, peso 35, peso e rendimentos da carca?a, peito, coxa+sobrecoxa e as caracter?sticas de qualidade da carne. As an?lises foram realizadas utilizando modelos de regress?o aleat?ria considerando efeito fixo de sexo e o efeito aleat?rio gen?tico aditivo direto como fun??es das rela??es triptofano:lisina da dieta, admitindo-se homogeneidade de vari?ncia residual. Os resultados para desempenho, caracter?sticas de carca?a e caracter?sticas de qualidade da carne indicam que o coeficiente de regress?o do intercepto (b0), foi maior que o coeficiente de regress?o aleat?rio (b1). A herdabilidade e a vari?ncia gen?tica aditiva foram influenciadas pelas diferentes rela??es triptofano:lisina da dieta. Houve intera??o gen?tipo x ambiente para as caracter?sticas rendimento de carca?a, rendimento de peito e rendimento de coxa+sobrecoxa. As caracter?sticas de qualidade da carne CRA, b*, c* e H* (LF1) e CRA, PPC, L* e H* (LF2) apresentaram intera??o gen?tipo x ambiente. A intera??o gen?tipo x ambiente observada para as caracteristicas de rendimento e qualidade da carne indicam que a sele??o seja feita na rela??o triptofano:lisina em que as codornas ser?o criadas. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2016. / We animed of this experiment was to characterize the genotype x environment interaction in the production of meat quails, fed diets containing different tryptophan:lysine ratios, via reaction standards. Two lines of cutting quails, LF1 and LF2, were used to perform the experiment. The feed provided in the growing period, from birth to 21 days, contained a 0.20% tryptophan:lysine ratio and in the final growth period, from 22 to 35 days of age, quails were separated into 5 treatments containing the Ratios of 0.15; 0.20; 0.25; 0.30; 0.35% tryptophan: lysine. The birds were weighed at 28 and 35 days of age and slaughtered at 35 days of age. The evaluated characteristics were the pre-slaughter weights, weight 28, weight 35, weight and yields of the carcass, breast, thigh + sobrecoxa and the quality traitsof the meat. The analyzes were performed using random regression models considering fixed sex effect and direct additive genetic random effect as functions of the tryptophan:lysine ratios of the diet, assuming homogeneity of residual variance. The results for performance, carcass traitsand meat quality traitsindicate that the regression coefficient of the intercept (b0) was higher than the random regression coefficient (b1). Heritability and additive genetic variance were influenced by the different tryptophan:lysine ratios of the diet. There was no genotype x environment interaction for the traitsof carcass yield, yield of breast and yield of thigh + overcoat. The quality traits of the meat CRA, b *, c * and H * (LF1) and CRA, PPC, L * and H * (LF2) presented genotype x environment interaction. It is possible to conclude that for yield traitsthe selection can be made in the lowest tryptophan: diet lysine ratios. For meat quality traitsthe sensitivity of the values indicates that the selection must be made in the tryptophan:lysine ratio in which the quails will be created.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-04-03T14:48:30Z No. of bitstreams: 1 HannalyWanaBezerraPereira_DISSERT.pdf: 2518932 bytes, checksum: 2d0f7247523a10a3475dd41f16e8f017 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-04-10T20:00:29Z (GMT) No. of bitstreams: 1 HannalyWanaBezerraPereira_DISSERT.pdf: 2518932 bytes, checksum: 2d0f7247523a10a3475dd41f16e8f017 (MD5) / Made available in DSpace on 2018-04-10T20:00:29Z (GMT). No. of bitstreams: 1 HannalyWanaBezerraPereira_DISSERT.pdf: 2518932 bytes, checksum: 2d0f7247523a10a3475dd41f16e8f017 (MD5) Previous issue date: 2018-02-27 / A febre Chikungunya ? uma s?ndrome febril com grave artralgia debilitante, podendo evoluir para casos at?picos, como manifesta??es neurol?gicas e mucocut?neas. Geralmente ? transmitida por mosquitos do g?nero Aedes. O agente etiol?gico ? o v?rus Chikungunya (CHIKV) que pertence ? fam?lia Togaviridae e ao g?nero Alphavirus. At? pouco tempo essa doen?a era negligenciada no Brasil, por?m com o surto epid?mico que houve no ano de 2016, essa arbovirose se tornou um desafio para a sa?de p?blica. O objetivo do presente estudo foi realizar a caracteriza??o gen?tica do CHIKV identificado no Estado do Rio Grande do Norte (RN), no bi?nio 2016-2017. Um total de 10 amostras de soro, l?quor ou conte?do de ves?culas-bolhosas foram analisadas pela metodologia de qRT-PCR para detec??o do CHIKV e todas se apresentaram positivas. Foi realizada a filogenia e a caracteriza??o gen?tica do v?rus, por meio do sequenciamento da regi?o codificadora da poliprote?na estrutural, com posterior an?lise da estrutura da prote?na por meio da modelagem. A an?lise filogen?tica indicou que o gen?tipo circulante no Estado do Rio Grande do Norte ? o Leste-Centro-Sul Africano II (ECSA II). A compara??o entre as sequencias dos CHIKV deste estudo com aquelas de seu ancestral da linhagem ECSA II identificado em Uganda em 1982 (GenBank: HM045812) revelou a presen?a de 21 muta??es n?o sin?nimas. O sequenciamento dos CHIKV do soro e do l?quor de um mesmo paciente revelou duas muta??es n?o sin?nimas potencialmente associadas a neurovirul?ncia viral: N606K e P677L. Adicionalmente, a an?lise da modelagem de prote?nas mostrou que o v?rus circulante no Rio Grande do Norte n?o apresenta a muta??o na posi??o A226V, que determina uma maior infectividade do v?rus para o Aedes albopictus. Em conclus?o, esse estudo revela a origem do CHIKV circulante no Estado do Rio Grande do Norte e poss?veis marcadores de neurovirul?ncia viral, informa??es ?teis para compreender a evolu??o viral e a patog?nese da doen?a. / Chikungunya fever is a febrile syndrome with severe debilitating arthralgia, which may progress to atypical cases, such as neurological and mucocutaneous manifestations. It is usually transmitted by mosquitoes of the genus Aedes. The etiological agent is the Chikungunya virus (CHIKV) that belongs to the family Togaviridae and to the genus Alphavirus. Until recently this disease was neglected in Brazil, but with the epidemic outbreak that occurred in the year 2016, this arbovirose has become a challenge for public health. The objective of the present study was to perform the genetic characterization of the CHIKV identified in the State of Rio Grande do Norte (RN), in the biennium 2016-2017. A total of 10 serum samples, cerebrospinal fluid (CSF) or blister samples were analyzed by the qRT-PCR methodology for CHIKV detection and all were positive. Phylogeny and genetic characterization of the virus were performed by sequencing the coding region of the structural polyprotein, with subsequent analysis of the protein structure through modeling. Phylogenetic analysis indicated that the circulating genotype in the State of Rio Grande do Norte is East-Central-South-African II (ECSA II). The comparison between CHIKV sequenced in this study and its ancestor from ECSA II lineage identified in Uganda in 1982 (GenBank: HM045812) revealed the presence of 21 non-synonymous mutations. Sequencing of serum and CSF CHIKV from the same patient revealed two non-synonymous mutations potentially associated with viral neurovirulence: N606K and P677L. In addition, the analysis of the protein model showed the circulating non-RN virus has no mutation at position A226V which is the major part of virus infection for Aedes albopictus. In conclusion, this study reveals the origin of CHIKV circulating in the State of Rio Grande do Norte and possible markers of viral neurovirulence, useful information to understand the viral evolution and the pathogenesis of the disease.

Submitted by Luis Ricardo Andrade da Silva (lrasilva@uefs.br) on 2016-03-31T01:16:15Z No. of bitstreams: 1 Disserta??o Final.pdf: 2489318 bytes, checksum: 74b79aac96fa73b31d6e0dbb4272efe3 (MD5) / Made available in DSpace on 2016-03-31T01:16:15Z (GMT). No. of bitstreams: 1 Disserta??o Final.pdf: 2489318 bytes, checksum: 74b79aac96fa73b31d6e0dbb4272efe3 (MD5) Previous issue date: 2015-12-15 / HIV infects over 40 million people worldwide and is considered by the World Health Organization a large scale pandemic. Which the associated disease has no cure. New data and analysis can help new treatment and vaccine development. However, the dataset is vast, with over 500,000 sequences available on GenBank. This data still lacks essential information such as subtyping and genome location. To help minimize these problems we developed a system for automated analysis from GenBank data. The tool performs sequence map according to HXB2 and subtyping by comparison with subtype reference sequences. This process uses Needleman-Wusch and Smith-Waterman respectively. All 582,678 sequences were mapped in 5 days and 14 hours and subtyped in 1 day and 7 hours with our algorithm, while the original approach was estimated to finish in 36 and 97 years respectively. Our tool was able to analyse the massive data in a reliable time. No current subtyping tool can analyse this high-throughput data. Our results showed that pol and gag genes were the most prevalent genes on the dataset, and could be explained because treatment and subtyping are based on these genes. Moreover, the structural genes were most prevalent, with 66.41%. This highlighted the low representation of regulatory genes on available data. The subtyping results showed that the subtype B was most frequent, with 45.96%. The recombinants together represent 43.37%. Furthermore, subtype C presented only 4.12% and the other pure subtypes less than 4%. Also, the geographical data was recovered from database and USA presented higher frequency, with 24.50%, showing a significant country bias. Our results present a new HIV subtype distribution with the most complete and recent dataset.Herein, we presented a new user friendly software for massive data analysis of viruses. This software is able to analyse highly mutational virus data, such as HCV and HIV in reliable time. Further, severe country bias raises questions regarding world subtype distribution. The analysis of all sequences from HIV provides new epidemy insights about subtypes and country distribution. / O HIV infecta mais de 40 milh?es de pessoas no mundo e ? considerado pela Organiza??o Mundial de Sa?de como uma pandemia. A doen?a associada n?o possui cura cl?nica. Novas an?lises e informa??es podem ajudar no desenvolvimento de novos tratamentos e vacinas. No entanto, o conjunto de dados sobre o agente etiol?gico dispon?vel ? vasto, contando com mais de 500 mil sequ?ncias no GenBank. Este conjunto de dados ainda carece de informa??es essenciais, como subtipo viral e localiza??o no genoma de refer?ncia. Para auxiliar na minimiza??o destes problemas, desenvolvemos um sistema para an?lise dos dados dispon?veis no GenBank. A ferramenta realiza o mapeamento de acordo com o genoma refer?ncia HXB2 e a subtipagem comparando as sequ?ncias de refer?ncia dos subtipos. Estes processos utilizam os algoritmos de Needleman-Wusch e Smith-Waterman respectivamente. Todas as 582.678 sequ?ncias foram mapeadas em 5 dias e 14 horas, e subtipadas em 1 dia e 7 horas com nosso algoritmo. Enquanto a abordagem original estima terminar em 36 e 97 anos respectivamente. Nenhuma ferramenta de subtipagem dispon?vel atualmente ? capaz de analisar esta quantidade de dados. Nossos resultados mostraram que os genes gag e pol s?o mais prevalentes no conjunto de dados. O que pode ser explicado pelo fato de t?cnicas de avalia??o de resist?ncia aos antirretrovirais e subtipagem serem baseadas nesses genes. Al?m disso, os genes estruturais exibiram uma preval?ncia absoluta de 66.41%. Isto evidencia a pouca representatividade de genes regulat?rios no conjunto de dados. Os resultados da subtipagem mostram que o subtipo B ? o mais frequente com 45,96% de preval?ncia. Os recombinantes, combinados, representam 43.37%. Ademais, o subtipo C apresentou apenas 4,12% de preval?ncia absoluta e outros subtipos puros menos de 4%. Al?m disso, dados geogr?ficos foram recuperados do banco de dados. Os Estados Unidos representam a maior frequ?ncia de sequ?ncias submetidas, com 24,5% de todos os dados dispon?veis. Nossos resultados apresentam uma nova distribui??o genot?pica do HIV, com o conjunto de dados mais recente e completo. Neste trabalho apresentamos um novo software para an?lise das sequ?ncias nucleot?dicas do HIV dispon?veis no GenBank. Este software ? capaz de analisar dados de v?rus com elevado comportamento mutacional como HIV e HCV em um curto espa?o de tempo. A an?lise de todas as sequ?ncias do HIV dispon?veis no GenBank oferece um novo ponto de vista sobre a epidemia, distribui??o de subtipos e geogr?fica.

Incluir como ag?ncias financiadoras: Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG), Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES), Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq). / Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2018-01-05T18:15:19Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) thaiza_silva_campideli.pdf: 3972827 bytes, checksum: d46dcbd4e39c922c90034d3992c8ad54 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-01-19T16:55:01Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) thaiza_silva_campideli.pdf: 3972827 bytes, checksum: d46dcbd4e39c922c90034d3992c8ad54 (MD5) / Made available in DSpace on 2018-01-19T16:55:01Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) thaiza_silva_campideli.pdf: 3972827 bytes, checksum: d46dcbd4e39c922c90034d3992c8ad54 (MD5) Previous issue date: 2017 / Esta pesquisa foi realizada com o objetivo de avaliar a sensibilidade dos valores gen?ticos aos n?veis diet?ticos de lisina digest?vel para caracter?sticas de desempenho e medidas morfom?tricas de til?pias do Nilo da linhagem tailandesa. Vinte e nove fam?lias de irm?os completos foram produzidas pelo acasalamento de 21 machos e 29 f?meas. A distribui??o entre os tanques foi feita aleatoriamente, por fam?lia, ap?s marca??o dos peixes, entre 94 a 109 dias de idade, at? formar um lote inicial de vinte alevinos por tanque, totalizando 700 peixes. ? idade aproximada de 150 dias os peixes foram aleatoriamente redistribu?dos no sistema, at? formar lotes com aproximadamente 138 peixes por n?vel de lisina digest?vel na dieta. Os peixes foram alimentados quatro vezes ao dia com dietas contendo diferentes n?veis de lisina digest?vel: 1,43; 1,53; 1,63; 1,73; e 1,83% nas idades entre 94 a 150 dias; e 1,28; 1,38; 1,48; 1,58 e 1,68% a partir da idade de 150 at? 255 dias. As informa??es individuais das til?pias (peso, comprimento total, comprimento padr?o, comprimento de cabe?a, altura e largura) foram padronizadas para 150, 185, 220 e 255 dias de idade. A partir de ent?o foram calculados o ganho de peso total, o ganho de peso di?rio, rela??o entre cabe?a e comprimento padr?o, rela??o entre largura e altura e a rela??o entre comprimento padr?o e comprimento total. Para as an?lises foi utilizado modelo de regress?o aleat?ria, sob modelo animal uni-caracter?stica. Foram testados modelos de ordens 2 e 3 do polin?mio de Legendre para o efeito fixo e ordem 2 para os efeitos gen?tico aditivo e de fam?lia e testados modelos com vari?ncia residual homog?nea (1classe) a heterog?nea (2, 3, e 4 classes). Os modelos que proporcionaram melhor ajuste na maioria das caracter?sticas foram os que consideraram vari?ncia residual homog?nea. De forma geral, os valores da correla??o de posto foram altas. As normas de rea??o de 25 til?pias tailandesas amostradas aleatoriamente indicaram altera??o na sensibilidade dos valores gen?ticos de algumas caracter?sticas ?s mudan?as no n?vel nutricional de lisina digest?vel. Observou-se, portanto, que as til?pias apresentam altera??o nos valores gen?ticos, sugerindo de maneira geral, a exist?ncia da intera??o gen?tipo x n?veis de lisina digest?vel para caracter?sticas, o que pode acarretar em sele??o de diferentes animais nos diferentes ambientes. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / This research was carried out with the aim of evaluating the sensitivity of breeding values to dietary digestible lysine level for performance traits and morphometric measurements of Nile tilapia of Thai lineage. Twenty-nine full sib families were produced by mating 21 males and 29 females. The distribution among the tanks was randomized by family, after marking the fish, between 94 and 109 days of age, until forming an initial batch of twenty fingerlings per tank, totaling 700 fish. At the approximate age of 150 days the fish were randomly redistributed into the system until they formed lots with approximately 138 fish per level of digestible lysine in the diet. Four times a day the fishes were fed diets containing different levels of lysine: 1.43; 1.53; 1.63; 1.73 and 1.83% in the growing phase; and 1.28; 1.38; 1.48; 1.58 and 1.68% in the finishing phase. The individual tilapia information (weight, total length, standard length, head length, height and width) were standardized for 150, 185, 220 and 255 days of age. From then on the weight gain, daily weight gain, head to standard length ratio, width to height ratio and the relationship between standard length and total length were calculated. . For the analyses, a random regression model was used under a single animal model. Legendre polynomial models of 2 and 3 orders were tested for the fixed effect, and of order 2 for the additive and family genetic effects. In addition, models were also tested using homogeneous residual variance (1 class) and heterogeneous variance (2, 3, and 4 classes). The models that provide better fit in most of the characteristics were those that considered homogeneous residual variance. In general, the rank correlations of breeding values of pairs of dietary digestible lysine levels were high. The reaction norms of 25 randomly sampled Thai tilapia showed change in the sensitivity of breeding values of some traits to changes in dietary digestible lysine level. Therefore, it was observed that breeding values of tilapia traits generally changed along the environment gradient, suggesting the existence of genotype x dietary digestible lysine level interaction which can lead to the selection of different fishes in different environments.

Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2018-03-20T18:00:43Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) namibia_rizzari_leite.pdf: 3000386 bytes, checksum: 4ad82a1678a4c363522c1631a2cdead0 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-03-29T14:18:22Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) namibia_rizzari_leite.pdf: 3000386 bytes, checksum: 4ad82a1678a4c363522c1631a2cdead0 (MD5) / Made available in DSpace on 2018-03-29T14:18:22Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) namibia_rizzari_leite.pdf: 3000386 bytes, checksum: 4ad82a1678a4c363522c1631a2cdead0 (MD5) Previous issue date: 2017 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) / Esta pesquisa foi realizada com o objetivo de avaliar o efeito da intera??o gen?tipo x n?veis de lisina digest?vel das dietas sobre caracter?sticas morfom?tricas e de desempenho de til?pias do Nilo, variedade GIFT, em fase de crescimento. O experimento foi constitu?do de duas fases, sendo que na primeira as til?pias foram alimentadas dos 90 aos 150 dias de idade com dietas contendo percentuais de lisina iguais a 1,43, 1,53, 1,63, 1,73 e 1,83 e na segunda fase, dos 151 aos 255 dias, os percentuais de lisina das dietas foram iguais a 1,28, 1,38, 1,48, 1,58 e 1,68. As til?pias foram pesadas dos 90 aos 255 dias de idade com intervalos de aproximadamente 30 dias, foram calculados o ganho de peso total e o ganho de peso di?rio e, posteriormente, as idades foram ajustadas para 90 e 150 dias na primeira fase, e 185, 220 e 255 dias na segunda fase. As medidas de altura, largura, comprimento de cabe?a, comprimento padr?o e comprimento total das til?pias foram coletadas aos 150 dias de idade. A partir desses dados, foram calculadas as rela??es cabe?a/comprimento padr?o, comprimento padr?o/comprimento total e largura/altura. Modelos de regress?o aleat?ria, por meio do modelo animal uni caracter?stica, foram utilizados para avaliar a sensibilidades dos valores gen?ticos aos n?veis de lisina digest?vel das dietas, plotando-se as normas de rea??o de 25 peixes amostrados aleatoriamente para as diferentes caracter?sticas para demonstrar o padr?o de comportamento dos valores gen?ticos das caracter?sticas ao longo do gradiente ambiental. Foram testados modelos com homogeneidade (1 classe) e heterogeneidade de vari?ncia residual (2, 3 e 4 classes). Modelos com heterogeneidade de vari?ncia residual foram mais adequados para avalia??o gen?tica da maioria das caracter?sticas das til?pias na primeira fase e modelos com homogeneidade de vari?ncia residual para a maioria das caracter?sticas de desempenho das til?pias avaliadas na segunda fase. Os valores gen?ticos das til?pias, em ambas as fases, variaram entre os n?veis de lisina estudados para a maioria das caracter?sticas, indicando a presen?a de intera??o gen?tipo x ambiente. No geral, as herdabilidades e vari?ncias gen?ticas aditivas variaram de baixas a altas magnitudes. As correla??es de Spearman, assim como as normas de rea??o, indicaram reordenamento dos valores gen?ticos ao longo do gradiente ambiental, sugerindo a presen?a de intera??o gen?tipo x ambiente. A sele??o para desempenho e medidas morfom?tricas de til?pias GIFT deve ser realizada no n?vel de lisina da dieta com a qual as til?pias ser?o alimentadas. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / This research was carried out with the objective of evaluating the effect of genotype x levels of digestible lysine of the diets on morphometric and performance characteristics of Nile tilapia, GIFT variety, in the growing phase. The experiment consisted of two phases, and in the first the tilapia were fed from 90 to 150 days of age diets containing lysine percentages equal to 1.43, 1.53, 1.63, 1.73 and 1.83. In the second phase, from 151 to 255 days, the lysine percentages of the diets were 1.28, 1.38, 1.48, 1.58 and 1.68. Tilapia were weighed from 90 to 255 days of age at intervals of approximately 30 days. Total weight gain and daily weight gain were calculated and, subsequently, were adjusted for 90 and 150 days in the first phase, and 185 , 220 and 255 days in the second phase. The measurements of height, width, head length, standard length and total length of tilapias were collected at 150 days of age. From these data, the head / standard length ratios, standard length / total length and width / height ratios were calculated. Single trait random regression modes were used in the analyses and the reaction norm plots of 25 randomly sampled fishes were used to demonstrate the sensitivity of breeding values to dietary digestible lysine level. Models with homogeneity (1 class) and heterogeneity of residual variance (2, 3 and 4 classes) were tested. Models considering heterogeneity of residual variance were more adequate for genetic evaluation of most of the characteristics of tilapia in the first phase and models considering homogeneity of residual variance for most of the performance characteristics of tilapia evaluated in the second phase. The breeding values of tilapia, in both phases, varied among the lysine levels studied for most of the traits, indicating the presence of genotype x environment interaction. In general, heritabilities and additive genetic variances varied from low to high magnitude. Spearman correlations, as well as the reaction norms, suggested rearrangement of breeding values along the environmental gradient, again indicating the presence of genotype x environment interaction. The selection for performance and morphometric traits of tilapia GIFT strain should be performed at the lysine level of the diet with which the tilapia will be fed.