Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies

Detalhes bibliográficos
Autor(a) principal: Scher, Anelcir
Data de Publicação: 2010
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Manancial - Repositório Digital da UFSM
dARK ID: ark:/26339/0013000003r44
Texto Completo: http://repositorio.ufsm.br/handle/1/10752
Resumo: This study was conducted to investigate the effect of aflatoxins consumption (AFL), in broiler breeders of different strains. To evaluate reproductive and productive aspects of broiler breeders intoxicated with AFL were used 660 females and 60 males, distributed in a completely randomized design with factorial arrangement with three levels of AFL (0.0, 0.50 and 1.0 mg/kg diet) and two strains, Cobb 500® (LA) and Hybro PG® (LB), totalizing six treatments with five replicates pens of 22 females and 2 males each. The period of intoxication was from 24th to the 64th weeks of age, from 65th to the 70th weeks; all birds were fed a AFL free diet, with the objective of assessing the residual effects. To evaluate the progenies, three experiments were performed from 1 to 21 days. Each one used 600 day old males, from eggs produced by the breeders of the experiment above, at 32, 48 and 64 weeks of age. For each experiment, the same design used in the evaluation of breeders was used, in a total of six treatments with 10 replicates of 10 males each. The laying rate was depreciated by the addition of AFL in the diet. This negative effect was more pronounced when it was added 1mg of AFL/kg, indicating a dose-dependent effect. LB breeders had higher eggs production than LA. Breeders from LA, intoxicated with 0.5mg AFL/kg diet, showed a greater reduction in egg production than birds LB, intoxicated with the same level of AFL. The hatching was not influenced by the AFL in the breeders diets. LB breeders had a poorest fertility and hatching. The hatchability of eggs from breeders intoxicated with 1mg AFL/kg of diet was the lowest, caused by an increase in embryo mortality in the third week of incubation. Evaluating the interaction among AFL and strains, there was a negative effect on the fertility rate only in the LB, when 0.5 or 1.0mg AFL/kg were added to the diets. The progeny from breeders intoxicated with 1mg AFL/kg diet had the lowest body weight at birth and 21 days, in the three experiments. LA breeders produced the heaviest chicks at birth and at 21 days. Studying the interaction AFL and strain, it was observed that AFL intoxication in LB did not affect progeny s initial weight, but in LA, there was a decrease in day old chicks weight produced by intoxicated breeders. The studied levels of AFL influenced negatively the performance of breeders and their progeny. The two strains showed different responses in some of the parameters studied, when they were fed with diets containing AFL.
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spelling Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progêniesAflatoxins and performance of two broiler breeders strains and their progenyMicotoxinasProgênieReprodutoras pesadasMycotoxinsProgenyHensCNPQ::CIENCIAS AGRARIAS::ZOOTECNIAThis study was conducted to investigate the effect of aflatoxins consumption (AFL), in broiler breeders of different strains. To evaluate reproductive and productive aspects of broiler breeders intoxicated with AFL were used 660 females and 60 males, distributed in a completely randomized design with factorial arrangement with three levels of AFL (0.0, 0.50 and 1.0 mg/kg diet) and two strains, Cobb 500® (LA) and Hybro PG® (LB), totalizing six treatments with five replicates pens of 22 females and 2 males each. The period of intoxication was from 24th to the 64th weeks of age, from 65th to the 70th weeks; all birds were fed a AFL free diet, with the objective of assessing the residual effects. To evaluate the progenies, three experiments were performed from 1 to 21 days. Each one used 600 day old males, from eggs produced by the breeders of the experiment above, at 32, 48 and 64 weeks of age. For each experiment, the same design used in the evaluation of breeders was used, in a total of six treatments with 10 replicates of 10 males each. The laying rate was depreciated by the addition of AFL in the diet. This negative effect was more pronounced when it was added 1mg of AFL/kg, indicating a dose-dependent effect. LB breeders had higher eggs production than LA. Breeders from LA, intoxicated with 0.5mg AFL/kg diet, showed a greater reduction in egg production than birds LB, intoxicated with the same level of AFL. The hatching was not influenced by the AFL in the breeders diets. LB breeders had a poorest fertility and hatching. The hatchability of eggs from breeders intoxicated with 1mg AFL/kg of diet was the lowest, caused by an increase in embryo mortality in the third week of incubation. Evaluating the interaction among AFL and strains, there was a negative effect on the fertility rate only in the LB, when 0.5 or 1.0mg AFL/kg were added to the diets. The progeny from breeders intoxicated with 1mg AFL/kg diet had the lowest body weight at birth and 21 days, in the three experiments. LA breeders produced the heaviest chicks at birth and at 21 days. Studying the interaction AFL and strain, it was observed that AFL intoxication in LB did not affect progeny s initial weight, but in LA, there was a decrease in day old chicks weight produced by intoxicated breeders. The studied levels of AFL influenced negatively the performance of breeders and their progeny. The two strains showed different responses in some of the parameters studied, when they were fed with diets containing AFL.Conselho Nacional de Desenvolvimento Científico e TecnológicoEste estudo foi conduzido para investigar o efeito do consumo de aflatoxinas (AFL) por matrizes de corte de diferentes linhagens. Para avaliar aspectos produtivos e reprodutivos de matrizes de corte intoxicadas com AFL, foram utilizadas 660 fêmeas e 60 machos, distribuídas em delineamento inteiramente casualizado em arranjo fatorial, com três níveis de AFL (0,0; 0,50 e 1,0 mg/kg de dieta) e duas linhagens, Cobb 500® (LA) e Hybro PG® (LB), totalizando seis tratamentos com cinco repetições de 22 fêmeas e 2 machos cada. O período de intoxicação foi da 24ª à 64ª semana de idade, da 65ª à 70ª semana, todas as aves receberam dietas isentas de AFL, com a finalidade de avaliar efeitos residuais. Para avaliar as progênies, foram realizadas três avaliações de 1 a 21 dias. Cada uma utilizou 600 pintos machos de um dia, provenientes de ovos produzidos por matrizes do experimento acima, na 32ª, 48ª e 64ª semanas de idade. Para cada avaliação, foi adotado o mesmo delineamento utilizado na avaliação das matrizes, totalizando seis tratamentos com 10 repetições de 10 machos cada. A taxa de postura foi depreciada pela adição de AFL na dieta. Esse efeito negativo foi mais acentuado quando foi adicionado 1mg de AFL/kg, indicando um efeito dose dependente. Aves LB apresentaram uma produção de ovos superior a da LA. Matrizes LA, intoxicadas com 0,5mg AFL/kg de dieta, apresentaram uma redução maior na produção de ovos que aves LB, intoxicadas com o mesmo nível de AFL. A eclosão não foi influenciada pelas AFL na dieta das matrizes. Aves da LB apresentaram pior fertilidade, reduzindo a taxa de eclosão da mesma. A eclodibilidade de ovos provenientes de aves intoxicadas com 1mg AFL/kg de dieta foi inferior às demais, devido a um aumento da mortalidade embrionária na terceira semana de incubação. Avaliando a interação entre AFL e linhagens sobre a taxa de fertilidade, verificou-se uma redução desta na LB, quando 0,5 ou 1,0mg AFL/kg foram adicionadas às dietas. A progênie de matrizes intoxicadas com 1mg AFL/kg de dieta apresentou um peso corporal inferior às demais, no primeiro e 21º dia, nas três avaliações realizadas. Matrizes da LA produziram pintos mais pesados ao nascer e aos 21 dias. Estudando a interação AFL e linhagens, observou-se que a intoxicação por AFL em matrizes da LB não afetou o peso inicial da progênie, porém, na LA, observou-se um decréscimo no peso de um dia de pintos produzidos por matrizes intoxicadas. Os níveis de AFL estudados prejudicaram o desempenho das matrizes e de suas progênies. As duas linhagens apresentaram respostas distintas em alguns dos parâmetros estudados, quando as mesmas foram submetidas à dietas contendo AFL.Universidade Federal de Santa MariaBRZootecniaUFSMPrograma de Pós-Graduação em ZootecniaRosa, Alexandre Pireshttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784315D9Zanella, Irineohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788657E9Flôres, Maristela Lovatohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783081T8Vieira, Sergio Luizhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4793970P4Scher, Anelcir2017-06-122017-06-122010-02-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfSCHER, Anelcir. Aflatoxins and performance of two broiler breeders strains and their progeny. 2010. 71 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2010.http://repositorio.ufsm.br/handle/1/10752ark:/26339/0013000003r44porinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2017-07-25T15:07:32Zoai:repositorio.ufsm.br:1/10752Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2017-07-25T15:07:32Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.none.fl_str_mv Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
Aflatoxins and performance of two broiler breeders strains and their progeny
title Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
spellingShingle Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
Scher, Anelcir
Micotoxinas
Progênie
Reprodutoras pesadas
Mycotoxins
Progeny
Hens
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
title_short Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
title_full Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
title_fullStr Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
title_full_unstemmed Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
title_sort Aflatoxinas e desempenhos de duas linhagens de matrizes de corte e de suas progênies
author Scher, Anelcir
author_facet Scher, Anelcir
author_role author
dc.contributor.none.fl_str_mv Rosa, Alexandre Pires
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4784315D9
Zanella, Irineo
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788657E9
Flôres, Maristela Lovato
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783081T8
Vieira, Sergio Luiz
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4793970P4
dc.contributor.author.fl_str_mv Scher, Anelcir
dc.subject.por.fl_str_mv Micotoxinas
Progênie
Reprodutoras pesadas
Mycotoxins
Progeny
Hens
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
topic Micotoxinas
Progênie
Reprodutoras pesadas
Mycotoxins
Progeny
Hens
CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA
description This study was conducted to investigate the effect of aflatoxins consumption (AFL), in broiler breeders of different strains. To evaluate reproductive and productive aspects of broiler breeders intoxicated with AFL were used 660 females and 60 males, distributed in a completely randomized design with factorial arrangement with three levels of AFL (0.0, 0.50 and 1.0 mg/kg diet) and two strains, Cobb 500® (LA) and Hybro PG® (LB), totalizing six treatments with five replicates pens of 22 females and 2 males each. The period of intoxication was from 24th to the 64th weeks of age, from 65th to the 70th weeks; all birds were fed a AFL free diet, with the objective of assessing the residual effects. To evaluate the progenies, three experiments were performed from 1 to 21 days. Each one used 600 day old males, from eggs produced by the breeders of the experiment above, at 32, 48 and 64 weeks of age. For each experiment, the same design used in the evaluation of breeders was used, in a total of six treatments with 10 replicates of 10 males each. The laying rate was depreciated by the addition of AFL in the diet. This negative effect was more pronounced when it was added 1mg of AFL/kg, indicating a dose-dependent effect. LB breeders had higher eggs production than LA. Breeders from LA, intoxicated with 0.5mg AFL/kg diet, showed a greater reduction in egg production than birds LB, intoxicated with the same level of AFL. The hatching was not influenced by the AFL in the breeders diets. LB breeders had a poorest fertility and hatching. The hatchability of eggs from breeders intoxicated with 1mg AFL/kg of diet was the lowest, caused by an increase in embryo mortality in the third week of incubation. Evaluating the interaction among AFL and strains, there was a negative effect on the fertility rate only in the LB, when 0.5 or 1.0mg AFL/kg were added to the diets. The progeny from breeders intoxicated with 1mg AFL/kg diet had the lowest body weight at birth and 21 days, in the three experiments. LA breeders produced the heaviest chicks at birth and at 21 days. Studying the interaction AFL and strain, it was observed that AFL intoxication in LB did not affect progeny s initial weight, but in LA, there was a decrease in day old chicks weight produced by intoxicated breeders. The studied levels of AFL influenced negatively the performance of breeders and their progeny. The two strains showed different responses in some of the parameters studied, when they were fed with diets containing AFL.
publishDate 2010
dc.date.none.fl_str_mv 2010-02-26
2017-06-12
2017-06-12
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv SCHER, Anelcir. Aflatoxins and performance of two broiler breeders strains and their progeny. 2010. 71 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2010.
http://repositorio.ufsm.br/handle/1/10752
dc.identifier.dark.fl_str_mv ark:/26339/0013000003r44
identifier_str_mv SCHER, Anelcir. Aflatoxins and performance of two broiler breeders strains and their progeny. 2010. 71 f. Dissertação (Mestrado em Zootecnia) - Universidade Federal de Santa Maria, Santa Maria, 2010.
ark:/26339/0013000003r44
url http://repositorio.ufsm.br/handle/1/10752
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Zootecnia
UFSM
Programa de Pós-Graduação em Zootecnia
publisher.none.fl_str_mv Universidade Federal de Santa Maria
BR
Zootecnia
UFSM
Programa de Pós-Graduação em Zootecnia
dc.source.none.fl_str_mv reponame:Manancial - Repositório Digital da UFSM
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Manancial - Repositório Digital da UFSM
collection Manancial - Repositório Digital da UFSM
repository.name.fl_str_mv Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)
repository.mail.fl_str_mv atendimento.sib@ufsm.br||tedebc@gmail.com
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