Our purpose was to examine characteristics of progeny test herds and their effects on the genetic evaluation of young sires. Data for a study of response to pedigree selection by stud were evaluated from 6238 Holstein sires in four USDA animal model evaluations from January 1995 to February 1997. When data were restricted to the nine major semen producing organizations, a common intercept and slope for prediction of daughter yield deviation from pedigree merit were appropriate for milk but R2 was low at 0.14. We detected no important differences in response to pedigree selection among progeny testing methods used by major semen producing organizations. Data for a study of specific progeny test herds were 4154 Holstein progeny test herds from two AI studs and 6361 remaining herds from two states. We grouped herds into four categories, 21st Century Genetics and Genex progeny test herds, other Minnesota herds and other New York herds. Herds were described by DHI profile and average cow evaluation data. Cows with extreme yield deviations (± 3 herd standard deviations) were identified, as were daughters of progeny test bulls with extreme daughter performance relative to pedigree merit of the bull. 21st Century Genetics and Genex appear to have chosen the larger, genetically superior and better managed herds from within their regions in which to conduct their progeny testing. We were not able to predict if a bull was going to exceed or fail to meet pedigree prediction by characteristics of the progeny test herds in which he was sampled. / Master of Science

The effect of decreasing digestible lysine (dLys) intake by broiler breeder (BB) hens from 35 to 45 wk of age on their reproductive performance and performance of their progeny was evaluated. Two types of diets were fed: a diet from commercially available ingredients consisting of dLys intakes of 1,200 (IDL) and 1,010 mg/hen/day (ID) and a semi-purified diet with dLys intakes of 1,010 (SPL) and 600 mg/hen/day (SP). Hens fed the SPL and SP diets had lower hen-day egg production compared to BB hens fed the IDL and ID diets. Fertility and hatchability of eggs set were lowest (P <0.05) for hens fed the SPL diets. Chick weight at hatch was lower (P<0.05) for those that came from the SP and SPLed hens, but 42 and 56 day body weights (BW) were similar for all treatments. Marginal improvements (P<0.10) in FCR were seen at 42 and 56 days for chicks from IDed hens compared to IDL hens. A decrease in daily intake of dLys appeared to improve BB reproductive performance when hens were fed a semi-purified diet and the same response was not observed in hens fed a diet from commercially available ingredients. Furthermore, the progeny study revealed marginal improvements in some live performance parameters. In a second study, a diet based from corn-soybean meal and formulated to a dLys intake of 1,000 mg/hen/day (CS) and three diets composed primarily of corn, soybean meal, and DDGS with 1,000 (DDGS-1,000), 800 (DDGS-800), and 600 (DDGS-600) mg of dLys/hen/day were fed to evaluate the reproductive performance of BB hens from 24 to 42 wk of age. Feeding diets composed of commercially available ingredients with dLys intake levels below 1,000 mg/hen/day did not impact BB reproductive performance. Reduced BW, carcass and breast weight, and higher (P<0.05) back half weight at 42 days of age was observed from broilers that came from 26 wk old BB hens fed the DDGS-600 diet. Reducing dLys intake in later BB hen ages did not impact progeny performance or carcass characteristics. This suggests that Lys may be in dietary surplus concentrations for commercial breeders under current practical conditions.

The objectives of these experiments were to evaluate the effects of selenium (Se) and vitamin E (Vit.E) supplementation in maternal and progeny diets on the performance of breeder hens and the performance and meat quality characteristics of progeny. Inclusion of Se, as Se yeast, in the diets of developing broiler breeder pullets resulted in greater Se accumulation of Se (P<0.01) in liver, pancreas, and breast tissues than when Se yeast was not provided. Improving the overall Se status of breeder pullets in the early stages may help maintain adequate tissue Se concentrations during egg production. Maternal supplementation of Se yeast and Vit.E increased the liver and breast Se concentration (P<0.05) of newly hatched chicks compared to the chicks originating from hens not receiving dietary Se. At 7d of age, Se yeast supplementation in either the chick or maternal diet increased breast and liver Se concentrations (P<0.01). At 14d of age, breast and liver Se concentrations remained the highest for chicks supplemented with Se yeast (P<0.01), however there was no effect of maternal Se supplementation. Vitamin E supplementation in either the chick or maternal diets did not affect the liver Vit.E concentrations of chicks at 7 or 14d of age. Supplementing broiler diets with Se yeast and Vit.E improved the meat quality characteristics of raw and marinated breast fillets. The Se content of breast meat from broilers fed Se yeast was higher (P<0.01) than those from broilers that were not fed Se yeast. Antioxidant supplementation improved the drip loss (P<0.05) and oxidative stability (P<0.10) of raw breast fillets after 7d of refrigerated storage. Marination appeared to increase the susceptibility for lipid oxidation of the marinated breast fillets. Dietary supplementation of Se yeast and Vit.E reduced lipid oxidation (P<0.01) of marinated breast fillets after prolonged refrigerated storage, thus improving oxidative stability. Overall, dietary supplementation of Se yeast can increase the accumulation of Se in the tissues of broiler breeder hens and their subsequent progeny. Improvements in the avian antioxidant system may have beneficial effects on the performance of broiler breeder hens, broilers, and the meat quality characteristics of broiler breast fillets.

Resumo: A espécie Eucalyptus grandis Hill ex Maiden é a mais cultivada em estandes comerciais no Brasil e no mundo. A espécie é plantada como cultivar e também na forma de plantios clonais de seus híbridos interespecíficos. O trabalho é um estudo da variabilidade genética em progênies de polinização livre de Eucalyptus grandis de árvores selecionadas fenotipicamente em pomar de sementes por muda, cuja procedência é originária de Coff's Harbour - Austrália. Este pomar, de propriedade da empresa Duratex S.A. encontra-se na Fazenda Morro D'Ouro, no Município de Botucatu. Tem também como objetivo analisar as correlações entre os diferentes caracteres nas diferentes idades e estudar as correlações entre as idades juvenis e de final de rotação da cultura, visando subsidiar a seleção precoce em programas de melhoramento com espécie. Os ensaios foram instalados em três experimentos em cada um dos dois locais, Angatuba-SP e Lençóis Paulista-SP, em fevereiro de 1988. O delineamento experimental utilizado foi o blocos casualizados, com 10 repetições, 6 plantas por parcela, ao espaçamento de 3 x 2 metros e totalizando 75 progênies. Os caracteres avaliados foram o diâmetro a altura do peito (DAP); altura de planta e volume de madeira. As avaliações foram feitas em quatro anos consecutivos (02, 03, 04 e 05 anos) em Lençóis Paulista (local 2), sendo que em Angatuba (local 1) foram realizadas avaliações anuais do segundo ao sexto ano. Os resultados mostraram haver variabilidade genética suficiente para avançar as gerações de melhoramento com a espécie... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The species Eucalyptus grandis Hill ex Maiden is the most commonly cultivated in commercial stands in Brazil and throughout the world. The species is planted as a cultivar, by seed, e also by clonal plantings of its interspecific hybrids. The research is a study of genetic variability in open pollinated progenies of Eucalyptus grandis of phenotipically selected trees in Seedling Seed Orchard of Coff's Harbour - Australia provenance. The orchard is of Duratex S.A. company located in Morro D'Ouro Experimental Station, in Botucatu city, S.P., Brazil. The study also have as objective to analyze the correlations between different traits in different ages and to study the correlations between juvenile and final of culture rotation, aiming to get support for procedures of early selection in forest tree breeding programs of Eucalyptus grandis. The experiments were set up by three trails in each one of two localities, Angatuba and Lençois Paulista, both in São Paulo State, Brazil, in February of 1988. The experimental design was the randomized blocks, with 10 replications, 06 plants per plot, 3 x 2 spacing, and totalizing 75 progenies. The diameter of breast height (dbh), plant height, and wood volume were the studied traits. The evaluations were made through the consecutive years (02, 03, 04, and 05 years old) in Lençois Paulista (Locality 2), and in Angatuba (Locality 1) were made annual evaluations from de second to the sixth years old. The results have shown sufficient genetic variability to advance breeding generations of species... (Complete abstract click electronic access below) / Orientador: Edson Seizo Mori / Coorientador: Léo Zimback / Banca: Maurício Dutra Zanotto / Banca: Edwin Camacho Palomino / Mestre

Made available in DSpace on 2014-06-11T19:30:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-09-04Bitstream added on 2014-06-13T19:18:58Z : No. of bitstreams: 1 brizolla_tf_me_botfca.pdf: 254524 bytes, checksum: 7729f6929f3138aa2ec6cbf4147cd6b8 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A espécie Eucalyptus grandis Hill ex Maiden é a mais cultivada em estandes comerciais no Brasil e no mundo. A espécie é plantada como cultivar e também na forma de plantios clonais de seus híbridos interespecíficos. O trabalho é um estudo da variabilidade genética em progênies de polinização livre de Eucalyptus grandis de árvores selecionadas fenotipicamente em pomar de sementes por muda, cuja procedência é originária de Coff’s Harbour – Austrália. Este pomar, de propriedade da empresa Duratex S.A. encontra-se na Fazenda Morro D’Ouro, no Município de Botucatu. Tem também como objetivo analisar as correlações entre os diferentes caracteres nas diferentes idades e estudar as correlações entre as idades juvenis e de final de rotação da cultura, visando subsidiar a seleção precoce em programas de melhoramento com espécie. Os ensaios foram instalados em três experimentos em cada um dos dois locais, Angatuba-SP e Lençóis Paulista-SP, em fevereiro de 1988. O delineamento experimental utilizado foi o blocos casualizados, com 10 repetições, 6 plantas por parcela, ao espaçamento de 3 x 2 metros e totalizando 75 progênies. Os caracteres avaliados foram o diâmetro a altura do peito (DAP); altura de planta e volume de madeira. As avaliações foram feitas em quatro anos consecutivos (02, 03, 04 e 05 anos) em Lençóis Paulista (local 2), sendo que em Angatuba (local 1) foram realizadas avaliações anuais do segundo ao sexto ano. Os resultados mostraram haver variabilidade genética suficiente para avançar as gerações de melhoramento com a espécie... / The species Eucalyptus grandis Hill ex Maiden is the most commonly cultivated in commercial stands in Brazil and throughout the world. The species is planted as a cultivar, by seed, e also by clonal plantings of its interspecific hybrids. The research is a study of genetic variability in open pollinated progenies of Eucalyptus grandis of phenotipically selected trees in Seedling Seed Orchard of Coff’s Harbour – Australia provenance. The orchard is of Duratex S.A. company located in Morro D’Ouro Experimental Station, in Botucatu city, S.P., Brazil. The study also have as objective to analyze the correlations between different traits in different ages and to study the correlations between juvenile and final of culture rotation, aiming to get support for procedures of early selection in forest tree breeding programs of Eucalyptus grandis. The experiments were set up by three trails in each one of two localities, Angatuba and Lençois Paulista, both in São Paulo State, Brazil, in February of 1988. The experimental design was the randomized blocks, with 10 replications, 06 plants per plot, 3 x 2 spacing, and totalizing 75 progenies. The diameter of breast height (dbh), plant height, and wood volume were the studied traits. The evaluations were made through the consecutive years (02, 03, 04, and 05 years old) in Lençois Paulista (Locality 2), and in Angatuba (Locality 1) were made annual evaluations from de second to the sixth years old. The results have shown sufficient genetic variability to advance breeding generations of species... (Complete abstract click electronic access below)

Submitted by Nathália Faria da Silva (nathaliafsilva.ufv@gmail.com) on 2017-07-13T11:23:31Z No. of bitstreams: 1 texto completo.pdf: 1310330 bytes, checksum: 0b1fb40f1985db830fa723ed7b82aec9 (MD5) / Made available in DSpace on 2017-07-13T11:23:31Z (GMT). No. of bitstreams: 1 texto completo.pdf: 1310330 bytes, checksum: 0b1fb40f1985db830fa723ed7b82aec9 (MD5) Previous issue date: 2001-11-13 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The objective of the first study was to obtain genetic parameters for sequential weights of beef cattle using RRM on data sets with missing and no missing traits, and to compare these estimates with those obtained by MTM. Growth curves of Nellore cattle were analyzed using body weights measured at ages ranging from 1 day (birth weight) to 733 days. Two data samples were created: one with 71,867 records from herds with missing traits and the other with 74,601 records from herds with no missing traits. Records preadjusted to a fixed age were analyzed by a multiple trait model (MTM), which included the effects of contemporary group, age of dam class, additive direct, additive maternal, and maternal permanent environment. Analyses were by restricted maximum likelihood (REML) with 5 traits at a time. The random regression model (RRM) included the effects of age of animal, contemporary group, age of dam class, additive direct, additive maternal, permanent environment, and maternal permanent environment. Legendre cubic polynomials were used to describe the random effects. Estimates of covariances by MTM were similar for both data sets, although those from the missing data set showed more variability from age to age. The estimates from RRM were similar to those from MTM only for the complete -trait case and showed large artifacts for the case of missing traits. Estimates of additive direct-maternal correlations under RRM for some ages approached -1.0, and most likely contained artifacts. If many traits are missing, the best approach to obtaining parameters for RRM would be conversion from smoothed MTM estimates. The purpose of the second study was estimation of parameters of models and data sets as in the first study by a Bayesian methodology – Gibbs sampling, and to make comparisons with their estimates by REML. Analyses were by a Bayesian method for all 9 traits. MTM estimated covariance components and genetic parameters for birth weight and sequential weights and RRM for all ages. Estimates of additive direct variance from herds with missing traits increased from birth weight through weight at 551 to 651 days with MTM. However, this component also increased for the sample with no missing traits after this age. Additive direct and residual estimated variance with RRM increased over all ages for both samples. For MTM, additive direct and maternal heritabilities were greater from the sample with herds with missing traits than those values from herds with no missing traits. The estimates from RRM were slightly lower than those from MTM for the sample with no missing traits; however, additive maternal heritabilities from MTM were greater than those using RRM. The estimated additive direct genetic correlations for each pair of traits were slightly higher for the first age (birth weight) using MTM than RRM. The range of additive maternal genetic correlations was lower than that for additive direct genetic correlations with MTM and RRM. Due to the fact that covariance components based on RRM were inflated for herds with missing traits, MTM should be used and converted to covariance functions. As well, for analyses with standard models where inferences on shapes of parameters are not important, analyses by REML may be more robust. The first goal of the third study was to implement the genetic evaluation of weights for a large population of beef cattle using the random regression model. The second goal was to compare these evaluations with those obtained from a multitrait evaluation. Expected progeny differences (EPD) were computed by two methods: a finite method using sparse factorization (SF) and interating (IT) by preconditioned conjugate gradient (PCG). The correlations between EPDs from MTM and RRM by SF and IT were ≤ .43 until the random regressions were orthogonalized. After orthogonalization high computing requirements of RRM were reduced by removing regressions corresponding to very low eigenvalues and by replacing the random error effects with weights. Correlations between EPDs from MTM and RRM for the additive direct effect were .87, .89, .89, .87, and .86 for W1 (weight at 60 days), W2 (weight at 252 days), W3 (weight at 243 days), W5 (weight at 426 days), and W7 (weight at 601 days), respectively. The corresponding correlations for the additive maternal effect were .85, .86, .88, .85 and .84, respectively. These low correlations were mostly due to differences in variances between the models and, to a lesser degree, due to better accounting for environmental effects and more data by RRM. The RRM applied to beef weights may be poorly conditioned numerically. / O objetivo do primeiro estudo foi estimar parâmetros para pesos seqüenciais de gado de corte, por meio de modelos de regressão aleatória (RRM), em características com informações perdidas e completas. Analisaram-se curvas de crescimento de gado Nelore mediante o uso de pesos corporais coletados, do nascer aos 733 dias de idade. Duas amostras foram geradas; a primeira era constituída de 71.867 medidas provenientes de rebanhos com informações perdidas, e a segunda, de 74.601 medidas oriundas de rebanhos com informações completas. Os pesos pré-ajustados a idades fixas foram analisados por meio de um modelo de características múltiplas (MTM), cinco características por vez, no qual foram incluídos efeitos de grupo contemporâneo, classe de idade da vaca, aditivo direto, aditivo materno e ambiente materno permanente. No modelo de regressão aleatória (RRM) foram incluídos efeitos de idade do animal, grupo contemporâneo, classe de idade da vaca, aditivo direto, ambiente permanente, aditivo materno e ambiente materno permanente. Polinômios cúbicos de Legendre foram utilizados na descrição dos efeitos aleatórios. Estimativas de covariâncias por meio de MTM foram similares em ambas as amostras, apesar de as obtidas da amostra com informações perdidas terem apresentado maior variabilidade entre as idades. As estimativas obtidas pelo RRM foram similares às obtidas pelo MTM somente para o caso de características completas e mostraram grande variabilidade para o caso de características com informações perdidas. Estimativas de correlações entre os efeitos aditivos direto e materno, por meio de RRM, foram iguais a -1.0, em algumas idades. Se várias informações forem perdidas, a melhor aproximação para obter parâmetros por meio de RRM seria a conversão das estimativas obtidas por meio de MTM. O segundo estudo objetivou estimar parâmetros por meio de modelos e características com informações perdidas e completas, à semelhança do primeiro estudo, mediante metodologia Bayesiana – Gibbs sampling, e efetivar comparações com as estimativas obtidas por meio da metodologia REML. As análises por meio do MTM foram para nove características. Estimaram-se componentes de covariâncias e parâmetros genéticos para específicos pontos seqüenciais, por meio do MTM; entretanto, por meio do RRM, tais estimativas foram obtidas para todas as idades. Estimativas de variâncias aditivas diretas para a amostra com informações perdidas aumentaram, do nascer à idade de 551 a 651 dias, pelo MTM, e em todas as idades, na amostra com informações completas. Estimativas de variâncias aditiva direta e residual, mediante RRM, aumentaram ao longo de todas as idades, em ambas as amostras. Pelo MTM, heritabilidades aditivas direta e materna foram maiores na amostra de rebanhos com informações perdidas do que na de rebanhos com informações completas. As estimativas obtidas pelo RRM foram ligeiramente menores do que aquelas obtidas pelo MTM na amostra com informações completas. Heritabilidades aditivas maternas pelo MTM foram maiores do que aquelas obtidas pelo RRM. As estimativas de correlações genéticas aditivas diretas foram levemente maiores para peso ao nascer, quando se utilizou MTM do que quando se empregou RRM. A amplitude das correlações genéticas aditivas maternas foi menor do que a do efeito genético aditivo direto, pelo MTM e pelo RRM. Tendo em vista que os componentes de covariância baseados em RRM são influenciados por informações perdidas, recomendam-se o MTM e a conversão destes componentes em funções de covariância. Além disso, nas análises com modelos-padrão em que inferências dos parâmetros não são importantes, o REML deve ser escolhido. Um terceiro trabalho objetivou a implementação de avaliação genética em bovinos de corte, utilizando modelo de regressão aleatória. Além disso, as avaliações foram comparadas com aquelas estimadas por meio de um modelo de características múltiplas. Dois métodos foram considerados nas análises: um método finito, FSPAKF90 (Factorization sparse matrix package), e o de iteração nos dados, PCG ( Preconditioned conjugate gradient). As correlações entre as diferenças esperadas nas progênies (DEP), estimadas pelo MTM e pelo RRM, foram muito baixas antes de se terem as regressões aleatórias ortogonais. Grande demanda computacional dos RRM foi reduzida pela remoção das regressões correspondentes a pequenas variâncias e também pela substituição dos efeitos aleatórios do erro por específica ponderação. Correlações entre DEPs, estimadas pelo MTM e pelo RRM para efeito aditivo direto, foram .87, .89, .89, .87 e .86 para W1 (peso aos 60 dias), W2 (peso aos 152 dias), W3 (peso aos 243 dias), W5 (peso aos 426 dias) e W7 (peso aos 601 dias), respectivamente. As correlações correspondentes, para efeito aditivo materno, foram .85, .86, .88, .85 e .84, respectivamente. Estimativas obtidas pelos RRM em informações ponderais de gado de corte podem não ser adequadas, em virtude das propriedades numéricas desses modelos. Em geral, baixas correlações são devidas a diferenças em variâncias entre modelos, número insuficiente de graus de liberdade para estimar os efeitos de ambiente e informações perdidas nos RRM.

Twenty selected Agropyron elongatum clones were evaluated in parent and progeny nurseries with each clone represented by 560 progenies. Agronomic characters evaluated on the progenies included degree of erectness, three height measurements, and green weight data. Correlations were calculated between the seed yields of the progenies and the forage yield of the parents. General combining ability was determined for the 20 clones. The clonal source of variation for erectness was high. More variation existed within clones for green weight than for any other character studied. Two specific clones exhibited better over-all general combining ability than the others. Successive seed yields on the same nursery were highly correlated, whereas no correlation was found between progeny forage and parent seed yields.

<p> Chapter 1-4 focuses on investigating whether forced copulations occur in teneral females, and how the female responds. There has only been one paper to report mating in newly eclosed (teneral) female matings in fruit flies (Drosophila melanogaster), and it was suggested to be forced. The focus of this thesis is to determine whether teneral matings are forced and how this may affect the future remating and reproductive success of females. Within the thesis, chapter 1 and 4 results suggest that teneral matings occur in both Canton-S and wild caught females, and occur in females less than 30 minutes post eclosion. Chapter 3 compared the male/female interaction of teneral females vs. immature females that successfully reject male mating attempts. Males were more aggressive with teneral females, and females displayed more rejection behaviours during courtship and mating. Chapter 4, was aimed at investigating what the reproductive consequences are, and results suggest that a teneral mating yields less progeny than a mature mating, and 68% of tenerally mated females remate at maturity.</p> <p> Chapter 5 and 6 focuses on investigating whether situational caffeine tolerance can be developed in fruit flies. Chapter 5 results indicate that caffeine causes a rest disruption, and a general tolerance to the rest disrupting effects can be gained over 6 days of repeated administration. The experiments in chapter 6 used various protocols to investigate whether a situational tolerance will develop, using odours and colours as associative cues. No conclusive results were found.</p> / Thesis / Master of Science (MSc)

<p> Techniques from algebra and matrix theory are employed to study the total progeny of a multitype branching process from the point of probability generating functions. A result for the total progeny of different types of individuals having identical offspring distribution is developed, which extends the classic Dwass formula from single case to multitype case. An example with Poisson distributed offspring having different distributions of children is given to illustrate that total progeny does not preserve similar structure as Dwass' formula in general.</p> / Thesis / Master of Science (MSc)

Made available in DSpace on 2016-04-25T20:22:45Z (GMT). No. of bitstreams: 1 Fatima Therezinha Motta.pdf: 2902203 bytes, checksum: bdc39579ef983db567c3626e90121e3f (MD5) Previous issue date: 2009-05-07 / In this doctoral dissertation, it is defended the importance of recognizing the female principle as mother-principle , as origin, developing a new consciousness, grounded on the book Visão gestadora: a visão em teia (2008), written by Ramy Arany. I adopt, then, in this research work, as reference, the thesis that a progeny female principle is the origin capable of enabling a new model to administer, generate, being forward of companies and/or organizations of different sizes and sectors. However, it is not intended here to propose a replacement of a male model by another one conditioned to the female principle, nor rendering both principles (male and female) as one. Because of my 25 years of work in managerial capability programs, some inquiries related to the kind of management and its consequence on people have disturbed me quite often. On the other hand, at the same time my professional life went on, personal inquiries arose in me on the way I related to people and the way I let myself go on long and permanent bounds. I realized a duality between my personal life and professional one, what stimulated me to look for a path that led me to a clearer consciousness in myself, understood as something more sacred and essential. After several efforts, I came across Instituto KVT, founded by Ramy Arany and Ramy Shanaytá, who since 1995 have worked in the development of consciousness grounded in observation of natural laws. In this institute, research and intense living actions are carried out on evolution on consciousness of being and his/her evolutive stages. Therefore, I was able to take knowledge from female in developing the progeny consciousness, what certainly altered my values, beliefs, behaviors and I started to observe the applicability of all what I have learned there to my questionings regarding management. Thus, along with books, articles and essays selection, the development of this doctoral dissertation has been carried out on a set of interviews with Ramy Arany and a survey with enterprises managers, differing in their performance in sectors of activities and sizes, what led me to an effective recognition of progeny female principle as a new kind of management that might assist managers interested in developing harmonic relations in sustainable organizations / Defende-se, nesta tese, a importância de reconhecer o princípio feminino como princípio-mãe , como origem, desenvolvendo uma nova consciência, fundamentada na Visão gestadora: a visão em teia (2008), de Ramy Arany. Adoto, então, neste trabalho, como eixo norteador, a tese de que o princípio feminino gestador é a origem capaz de proporcionar um novo modelo para administrar, gerir, estar à frente de empresas e/ou organizações de diferentes portes e setores. Não se trata, entretanto, de se propor uma substituição de um modelo masculino por outro condicionado ao princípio feminino, nem de unir o princípio masculino ao feminino. Em função de atuar há cerca de vinte e cinco anos com capacitação de gestores, algumas questões - em relação à forma de gestão e sua consequência sobre as pessoas - me inquietaram com frequência. Por outro lado, ao mesmo tempo em que minha vida profissional seguia, questionamentos pessoais surgiam sobre a maneira como me relacionava com as pessoas e a forma como estabelecia ou não vínculos duradouros e permanentes. Percebi uma dualidade entre minha vida pessoal e profissional, o que me estimulou a procurar um caminho que me levasse a uma consciência mais lúcida sobre mim mesma, entendido como algo mais sagrado e essencial. Após várias tentativas, cheguei ao Instituto KVT, fundado por Ramy Arany e Ramy Shanaytá, que desde 1995 trabalham no desenvolvimento da consciência com base na observação das leis naturais. Nesse Instituto são realizadas pesquisas e vivências profundas sobre a evolução da consciência do ser em seus estágios evolutivos. Pude, então, tomar ciência do feminino ao desenvolver a consciência gestadora, o que certamente alterou meus valores, crenças e comportamentos e passei a observar a aplicabilidade de tudo que aprendi para meus questionamentos relacionados à gestão. Assim, além da seleção de livros, artigos e periódicos, o desenvolvimento desta tese de doutorado se fez também a partir de um conjunto de entrevistas com a própria Ramy Arany e de uma pesquisa de campo com gestores de empresas, de diferentes setores e portes, que me conduziram ao efetivo reconhecimento do princípio feminino gestador como uma nova forma de gestão que pode em muito ajudar os gestores que queiram desenvolver relações harmônicas em organizações sustentáveis