Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/17898 |
Resumo: | The production of eggs in conventional cages has been strongly questioned as to the welfare provided to the animals; this system could cause physical discomfort and inhibit the manifestation of natural behaviors. In this way alternative systems have emerged, which aim to improve the welfare of animals in the production system. Faced with this, one of the major challenges is to establish which of the production systems provides an adequate level of animal welfare, since no system meets all welfare requirements unless the animal is in freedom. The experiment was conducted in two experimental aviaries located in the Poultry Laboratory of the Federal University of Santa Maria. The objective of this study was to compare the performance and egg quality of laying hens, housed in conventional cages and in a floor (wood shaving was used as litter). The experiment used a total of 528 laying hens, Isa Brown line, 21 weeks old, distributed in a completely randomized design, with 4 treatments in a 2 x 2 factorial scheme (2 housing systems x 2 types of beak trimming), with 6 replicates of 22 birds each. The birds were divided into two groups, maintained in different housing systems (conventional cage versus floor with wood shaving litter), productive performance was counted daily from 21 to 40 weeks. This period was divided in five periods of 28 days each; period I (21st – 24th wks of age), II (25th – 28th wks of age), III (29th – 32nd wks of age), IV (33rd – 36th wks of age) and V (37th – 40th wks of age). The birds kept on the ground had better egg laying rates in periods I, II, III and IV and had heavier eggs in all periods than eggs produced by cage birds (P<0.0001). In all periods, it was observed that egg yolks had higher weights than the others (P<0.05). In periods I, II, III and IV, hens housed on the ground presented higher albumen weight (P<0.0001). The birds kept in the cage had worse warping conditions of the neck and tail regions (P<0.0001). The host system influenced the presence of intestinal parasites of the genus Raillietina, where it was observed that birds housed in the ground had a high incidence of them (P<0.0001). Birds kept in different productive systems and beak trimming did not have foot lesions (P>0.05). The debiting did not influence egg quality (P>0.05). Birds free of cages produced more eggs. Birds submitted to different systems and beak trimming produced eggs of the same quality. The housing system had no effect on contamination by Salmonella spp., Enterobacteria and total coliforms. The cage - free birds presented parasitic contamination with helminths of the genus Raillietina. |
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Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeirasImpacts of production and beak-trimming systems on egg production and quality of laying hensGaiolas convencionaisLivres de gaiolaDesempenhoQualidade de ovosPoedeirasCageCage-freePerformanceEgg qualityLaying hensCNPQ::CIENCIAS AGRARIAS::ZOOTECNIAThe production of eggs in conventional cages has been strongly questioned as to the welfare provided to the animals; this system could cause physical discomfort and inhibit the manifestation of natural behaviors. In this way alternative systems have emerged, which aim to improve the welfare of animals in the production system. Faced with this, one of the major challenges is to establish which of the production systems provides an adequate level of animal welfare, since no system meets all welfare requirements unless the animal is in freedom. The experiment was conducted in two experimental aviaries located in the Poultry Laboratory of the Federal University of Santa Maria. The objective of this study was to compare the performance and egg quality of laying hens, housed in conventional cages and in a floor (wood shaving was used as litter). The experiment used a total of 528 laying hens, Isa Brown line, 21 weeks old, distributed in a completely randomized design, with 4 treatments in a 2 x 2 factorial scheme (2 housing systems x 2 types of beak trimming), with 6 replicates of 22 birds each. The birds were divided into two groups, maintained in different housing systems (conventional cage versus floor with wood shaving litter), productive performance was counted daily from 21 to 40 weeks. This period was divided in five periods of 28 days each; period I (21st – 24th wks of age), II (25th – 28th wks of age), III (29th – 32nd wks of age), IV (33rd – 36th wks of age) and V (37th – 40th wks of age). The birds kept on the ground had better egg laying rates in periods I, II, III and IV and had heavier eggs in all periods than eggs produced by cage birds (P<0.0001). In all periods, it was observed that egg yolks had higher weights than the others (P<0.05). In periods I, II, III and IV, hens housed on the ground presented higher albumen weight (P<0.0001). The birds kept in the cage had worse warping conditions of the neck and tail regions (P<0.0001). The host system influenced the presence of intestinal parasites of the genus Raillietina, where it was observed that birds housed in the ground had a high incidence of them (P<0.0001). Birds kept in different productive systems and beak trimming did not have foot lesions (P>0.05). The debiting did not influence egg quality (P>0.05). Birds free of cages produced more eggs. Birds submitted to different systems and beak trimming produced eggs of the same quality. The housing system had no effect on contamination by Salmonella spp., Enterobacteria and total coliforms. The cage - free birds presented parasitic contamination with helminths of the genus Raillietina.Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqA produção de ovos, em gaiolas convencionais, tem sido fortemente questionada em relação ao bem-estar animal, sob a alegação de que este sistema causa desconforto físico e inibe a manifestação dos comportamentos naturais. Desse modo surgiram os sistemas alternativos, que visam melhorar o bem-estar de animais no sistema produtivo. Diante disso, torna-se um dos maiores desafios estabelecer qual dos sistemas de produção oferece um nível adequado de bem-estar para os animais, visto que nenhum sistema contempla todos os requisitos de bem-estar, a não ser que o animal esteja em liberdade. O experimento foi conduzido em dois aviários experimentais localizados no Laboratório de Avicultura da Universidade Federal de Santa Maria. O objetivo, neste trabalho, foi comparar o desempenho e qualidade de ovos de poedeiras Isa Brown, alojadas em gaiolas convencionais e em piso com cama de maravalha. O experimento utilizou 528 poedeiras da linhagem Isa Brown, iniciou 21 semanas de idade, foram distribuídas em um delineamento inteiramente casualizado, com 4 tratamentos em esquema fatorial 2 x 2 (2 sistemas de alojamento x 2 números de debicagem), com 6 repetições de 22 aves cada. As aves foram divididas em dois grupos, mantidas em diferentes sistemas de alojamento (gaiola convencional versus piso com cama de maravalha), o desempenho produtivo foi contabilizado diariamente das 21 às 40 semanas. Este período foi dividido em cinco períodos de 28 dias cada; período I (21ª – 24ª semanas), II (25ª – 28ª semanas), III (29ª – 32ª semanas), IV (33ª – 36ª semanas) e V (37ª – 40ª semanas). As aves mantidas no chão apresentaram melhores taxas de postura nos períodos I, II, III e IV e tiveram ovos mais pesados em todos os períodos, do que os ovos produzidos pelas aves de gaiola (P<0,0001). Em todos os períodos observa-se que as gemas destes ovos tiveram maiores pesos que os demais (P<0,05). Nos períodos I, II, III e IV aves alojadas no chão apresentaram maior peso de albúmen (P<0,0001). As aves mantidas na gaiola tiveram pior condição de empenamento das regiões do pescoço e cauda (P<0,0001). O sistema de alojamento influenciou a presença de parasitas intestinais do gênero Raillietina, onde observou-se que aves alojadas no chão tiveram grande incidência dos mesmos (P<0,0001). Aves mantidas em diferentes sistemas produtivos e debicagens não tiveram lesões de pé (P>0,05). A debicagem não influenciou na qualidade de ovos (P>0,05). As aves livres de gaiolas produziram mais ovos. Aves submetidas aos diferentes sistemas e debicagens produziram ovos com a mesma qualidade. O sistema de alojamento não teve efeito na contaminação por Salmonella spp., enterobactérias e coliformes totais. As aves livres de gaiola apresentaram contaminação parasitária com helmintos do gênero Raillietina.Universidade Federal de Santa MariaBrasilZootecniaUFSMPrograma de Pós-Graduação em ZootecniaCentro de Ciências RuraisRosa, Alexandre Pireshttp://lattes.cnpq.br/5343585494040314Stefanello, Catarinahttp://lattes.cnpq.br/1004217874825544Giacomini, Camila Borba Santoshttp://lattes.cnpq.br/6778244967497480Kuhn, Micheli Faccin2019-08-12T15:53:41Z2019-08-12T15:53:41Z2019-03-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://repositorio.ufsm.br/handle/1/17898porAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2019-08-13T06:02:40Zoai:repositorio.ufsm.br:1/17898Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2019-08-13T06:02:40Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras Impacts of production and beak-trimming systems on egg production and quality of laying hens |
title |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras |
spellingShingle |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras Kuhn, Micheli Faccin Gaiolas convencionais Livres de gaiola Desempenho Qualidade de ovos Poedeiras Cage Cage-free Performance Egg quality Laying hens CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
title_short |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras |
title_full |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras |
title_fullStr |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras |
title_full_unstemmed |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras |
title_sort |
Impactos dos sistemas de produção e debicagem na produção e qualidade de ovos de poedeiras |
author |
Kuhn, Micheli Faccin |
author_facet |
Kuhn, Micheli Faccin |
author_role |
author |
dc.contributor.none.fl_str_mv |
Rosa, Alexandre Pires http://lattes.cnpq.br/5343585494040314 Stefanello, Catarina http://lattes.cnpq.br/1004217874825544 Giacomini, Camila Borba Santos http://lattes.cnpq.br/6778244967497480 |
dc.contributor.author.fl_str_mv |
Kuhn, Micheli Faccin |
dc.subject.por.fl_str_mv |
Gaiolas convencionais Livres de gaiola Desempenho Qualidade de ovos Poedeiras Cage Cage-free Performance Egg quality Laying hens CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
topic |
Gaiolas convencionais Livres de gaiola Desempenho Qualidade de ovos Poedeiras Cage Cage-free Performance Egg quality Laying hens CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA |
description |
The production of eggs in conventional cages has been strongly questioned as to the welfare provided to the animals; this system could cause physical discomfort and inhibit the manifestation of natural behaviors. In this way alternative systems have emerged, which aim to improve the welfare of animals in the production system. Faced with this, one of the major challenges is to establish which of the production systems provides an adequate level of animal welfare, since no system meets all welfare requirements unless the animal is in freedom. The experiment was conducted in two experimental aviaries located in the Poultry Laboratory of the Federal University of Santa Maria. The objective of this study was to compare the performance and egg quality of laying hens, housed in conventional cages and in a floor (wood shaving was used as litter). The experiment used a total of 528 laying hens, Isa Brown line, 21 weeks old, distributed in a completely randomized design, with 4 treatments in a 2 x 2 factorial scheme (2 housing systems x 2 types of beak trimming), with 6 replicates of 22 birds each. The birds were divided into two groups, maintained in different housing systems (conventional cage versus floor with wood shaving litter), productive performance was counted daily from 21 to 40 weeks. This period was divided in five periods of 28 days each; period I (21st – 24th wks of age), II (25th – 28th wks of age), III (29th – 32nd wks of age), IV (33rd – 36th wks of age) and V (37th – 40th wks of age). The birds kept on the ground had better egg laying rates in periods I, II, III and IV and had heavier eggs in all periods than eggs produced by cage birds (P<0.0001). In all periods, it was observed that egg yolks had higher weights than the others (P<0.05). In periods I, II, III and IV, hens housed on the ground presented higher albumen weight (P<0.0001). The birds kept in the cage had worse warping conditions of the neck and tail regions (P<0.0001). The host system influenced the presence of intestinal parasites of the genus Raillietina, where it was observed that birds housed in the ground had a high incidence of them (P<0.0001). Birds kept in different productive systems and beak trimming did not have foot lesions (P>0.05). The debiting did not influence egg quality (P>0.05). Birds free of cages produced more eggs. Birds submitted to different systems and beak trimming produced eggs of the same quality. The housing system had no effect on contamination by Salmonella spp., Enterobacteria and total coliforms. The cage - free birds presented parasitic contamination with helminths of the genus Raillietina. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-08-12T15:53:41Z 2019-08-12T15:53:41Z 2019-03-15 |
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 |
http://repositorio.ufsm.br/handle/1/17898 |
url |
http://repositorio.ufsm.br/handle/1/17898 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Zootecnia UFSM Programa de Pós-Graduação em Zootecnia Centro de Ciências Rurais |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Brasil Zootecnia UFSM Programa de Pós-Graduação em Zootecnia Centro de Ciências Rurais |
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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1805922117296848896 |