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Influ?ncia da ilumina??o artificial no desempenho e sa?de de leit?es na fase de creche / The influence of artificial lighting on swine zootechnical performance in nursery phaseSousa J?nior, Vilmar Rodrigues de January 2010 (has links)
?rea de concentra??o: Produ??o animal / Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-12-22T12:13:05Z
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Previous issue date: 2010 / Objetivou-se com esta pesquisa avaliar a influ?ncia da ilumina??o artificial, na creche, sobre o
desempenho produtivo e estado sanit?rio dos leit?es e caracterizar as condi??es ambientais
dentro das salas dos programas de ilumina??o artificial. O experimento foi realizado no
Centro Nacional de Pesquisa em Su?nos e Aves (CNPSA-Embrapa), no Sistema de Produ??o
de Su?nos, localizado no munic?pio de Conc?rdia, regi?o Oeste do Estado de Santa Catarina.
O experimento foi realizado em dois per?odos, de 19 de junho de 2008 a 24 de julho de 2008 e
de 10 de junho de 2009 a 15 de julho de 2009, com clima t?pico de inverno. Foram alocados
seis animais em cada baia e utilizadas seis baias (blocos) centrais por sala. Os animais foram
resultantes de cruzamento f?meas (Landrace x Large-White) e machos (MS 115),
desmamados com 28,3 ? 2,1 dias de idade e peso de 9 ? 1,2 kg, de acordo com o manejo da
granja. Os tratamentos foram associados ? ilumina??o da sala, sendo em cada uma aplicado
um tratamento diferente: Programa LN - Ilumina??o natural (controle); Programa 16L:8E -
Ilumina??o artificial de 16 horas di?rias de luz e 8 hora de escuro (16L:8E); Programa 23L:1E
- Ilumina??o artificial de 23 horas di?rias de luz e 8 horas de escuro (23L:1E). As vari?veis
analisadas foram: desempenho (ganho de peso di?rio, ganho de peso acumulado, consumo de
ra??o di?rio, consumo de ra??o acumulado, consumo de ?gua di?rio); ocorr?ncia de diarr?ia
nos leit?es; vari?veis meteorol?gicas (temperatura de bulbo seco, umidade e velocidade do ar)
e ilumin?ncia. O planejamento experimental foi em blocos completos casualizados, com tr?s
tratamentos, duas repeti??es e 35 dias de medi??o e as m?dias comparadas pelo teste t. N?o
houve influ?ncia da ilumina??o sobre as vari?veis de desempenho. A frequ?ncia de diarr?ia
n?o foi influenciada pelos programas de ilumina??o. As diferen?as encontradas nas vari?veis
meteorol?gicas n?o influenciaram o desempenho dos su?nos. Os programas de ilumina??o
avaliados n?o apresentaram melhorias no desempenho dos leit?es em fase de creche que
justificassem a sua utiliza??o. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, [2010]. / ABSTRACT
The objective of this research was to evaluate the influence of artificial lighting in the nursery,
on performance and sanitary conditions of piglets and characterize the environmental
conditions inside the rooms of the programs of artificial lighting. The experiment was held at
the National Center for research on pigs and poultries (CNPSA-EMBRAPA), the system of
pig production in the city of Concordia, west of the state of Santa Catarina. The experiment
was conducted in two periods, from June, 19 to July, 24 of 2008 and June, 10 to July, 15 of
2009, with typical winter weather. Six animals were allocated in each stall and used six stalls
(blocks) in central room. The animals resulted from a cross between females (Landrace x
Large White) and males (MS 115), weaned at 28.3 ? 2.1 days of age and weight of 9 ? 1.2 kg,
according to the management of the poultry farm. The treatments were associated with the
lighting of the room, being assigned to each one a different treatment: LN Program - natural
lighting (control); Program 16L: 8E - Artificial lighting with 16 hours of light and 8 hours of
dark (16L: 8E). Program 23L: 1E - Artificial lighting with 23 hours of light and 8 hours of
dark (23L: 1D). The analyzed variables were: performance (daily weight gain, total weight
gain, daily feed intake, total feed intake, daily water consumption), diarrhea in piglets;
meteorological variables (dry bulb temperature, humidity and speed air) and illuminance. The
experimental planning was in randomized complete blocks with three treatments, two
repetitions and 35 days of measurement and the averages compared by t test. There was no
influence of illumination on the performance variables. The frequency of diarrhea was not
influenced by lighting programs. The differences in meteorological variables did not influence
the performance of pigs. The evaluated lighting programs did
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Programa de ilumina??o para su?nos em fase de termina??o / Light Programs for finishing pigsAmaral, Pedro Ivo Sodr? January 2012 (has links)
Trabalho sem a folha de aprova??o. / Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-12-17T17:14:54Z
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Previous issue date: 2012 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / O experimento foi conduzido no munic?pio de Couto de Magalh?es de Minas/MG. Foram utilizados 36 su?nos (59,04?5,55 kg) distribu?dos em delineamento inteiramente ao acaso em tr?s tratamentos com seis repeti??es, sendo a unidade experimental composta por dois su?nos na baia. Os animais foram submetidos a tr?s programas hemerais de luz, caracterizando os tratamentos: luz natural (LN), 16 horas de luz e oito horas de escuro (16L:8E) e 23 horas de luz e uma de escuro (23L:1E). A ra??o e a ?gua foram fornecidas ? vontade, os comedouros foram repostos em tr?s tratos ?s 08h, 14h e 19h. Foi anotado o consumo de ra??o di?rio (CRD), o ganho de peso di?rio (GPD), e a convers?o alimentar (CA). Os par?metros fisiol?gicos observados foram a temperatura retal (TR), a freq??ncia respirat?ria (FR) e a temperatura superficial (TS), avaliados em dois per?odos, uma vez por semana. Os leit?es foram observados durante o per?odo nictemeral a cada dez minutos, totalizando quatro dias de avalia??o. Os padr?es observados foram: em p?, deitado, comendo, bebendo, fu?ando em p?, fu?ando outro, sentado, urinando e defecando. Para os dados de desempenho foi feita an?lise em delineamento inteiramente ao acaso, sendo a baia a parcela e o peso inicial como co-vari?vel, as m?dias foram comparadas por teste t a 5% de signific?ncia. Para as caracter?sticas fisiol?gicas (TR, FR e TS), as an?lises foram feitas em delineamento inteiramente ao acaso com esquema fatorial (3x2), considerando os dias de coleta como repeti??es, os programas de luz e os per?odos de coleta como tratamentos. As observa??es de comportamento foram submetidas ao teste de Kruskal-Wallis. As an?lises foram feitas dentro de cada hora do dia, al?m disso, avaliou-se o per?odo diurno (06h ?s 18h) e noturno (18h ?s 06h). Os programas de ilumina??o utilizados n?o influenciaram o consumo de ra??o di?rio, o ganho de peso di?rio nem a convers?o alimentar dos animais. Os resultados para TS foram maiores para os su?nos que receberam 23L:1E, no per?odo da tarde em rela??o aos demais. A luz suplementar promoveu eleva??o da FR, apenas no per?odo da tarde. A TR n?o variou entre os tratamentos. As vari?veis comportamentais ?em p??, ?defecando?, ?fu?ar em p??, ?fu?ar o outro? e ?urinando? n?o diferiram em nenhum dos per?odos estudados. Houve diferen?a significativa entre os tratamentos para a vari?vel ?deitado?, "comendo", "bebendo" e "sentado" indicando poss?vel aumento na atividade dos animais no per?odo da noite. O uso de programas de ilumina??o para su?nos em termina??o n?o alterou o desempenho dos animais. Todavia, o fornecimento de luz adicional influenciou o comportamento dos animais que ficaram mais ativos. A maior atividade dos su?nos que receberam luz apresentou, como consequ?ncia, altera??es nos par?metros fisiol?gicos indicando maior desconforto ambiental no per?odo da tarde. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, [2012]. / ABSTRACT
The experiment was conducted in Couto de Magalh?es de Minas/ MG. Was used 36 pigs (59.04 ? 5.55 kg) allotted to completely randomized design with three treatments and six replicates of one experimental unit consisted of two pigs at bay. The animals underwent three light programs, featuring treatments: natural light (NL), 16 hours of light and eight hours of dark (16L: 8D) and 23 hours of light and one dark (23L: 1D). Feed and water were given ad libitum, the feeders were restored in three tracts at 08h, 14h and 19h. It was noted the daily feed intake (DFI), daily weight gain (ADG) and feed conversion (FC). The physiological parameters were observed rectal temperature (RT), respiratory rate (RR) and surface temperature (TS), evaluated in two periods, once a week. The animals were observed during the diel every ten minutes, totaling four days of evaluation. The patterns observed were: standing, lying, eating, drinking, standing digging, digging another, sitting, urinating and defecating. For performance data analysis was performed in a completely randomized design, with the pen portion and initial weight as a covariate, the means were compared by t test at 5% significance for the physiological characteristics (TR, FR and TS) analyzes were done in a completely randomized design with factorial arrangement (3x2), considering the collection days as replicates, the lighting programs and collection period as treatments. The behavioral observations were submitted to Kruskal-Wallis test. The analyzes were performed within each time of day, in addition, we assessed the daytime (06h to 18h) and night (18h to 06h). The lighting programs used did not affect feed intake, daily weight gain or feed the animals. The results for TS were higher for pigs receiving 23L: 1D, in the afternoon compared to the other. The supplemental light promoted an increase in RF only in the afternoon. The TR did not vary between treatments. The behavioral variables "standing", "defecating", "tweak in the foot", "tweak the other" and "pissing" did not differ in any of the periods studied. There were significant differences between treatments for the variable "lying", "eating", "drinking" and "sitting" indicating a possible increase in the activity of the animals at night. The use of lighting programs for finishing pigs did not affect animal performance. However the provision of additional light influenced the behavior of animals that were more active. A greater activity of the pigs that had received the light, as a consequence, changes in physiological parameters indicating greater environmental discomfort in the afternoon.
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