Fontes alternativas de alimentos para vacas em lactação

Detalhes bibliográficos
Autor(a) principal: ALMEIDA, Gleidiana Amélia Pontes de
Data de Publicação: 2018
Tipo de documento: Tese
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8107
Resumo: In order to evaluate alternative feeds for the production of milk in the semiarid region, considering the lack of work and the opportunity to use the sugarcane bagasse as exclusive bulk for lactating cows and the replacement of sugar cane by cactus cladodes (orelha de elefante mexicana), it was aimed at first evaluated the sugarcane bagasse as roughage for lactating dairy cows under intake, digestibility, ingestive behavior, milk yield, milk composition and microbial protein synthesis. Ten girolando cows at ±25.6 kg of body weight and at 30.7 days in milk were distributed into two contemporaneous 5x5 Latin square. Five experimental periods of 21 days were adopted (14 first day of diets adaptations and the last 7 days for data and samples collections). Experimental diets consisted of four different levels of sugarcane bagasse (45, 50, 55 and 60%) and one control diet commonly adopted in the region, based on spineless cactus (25% sugarcane bagasse), formulated to meet 12 kg/d milk yield.The dry matter (DM), organic matter (OM), and total digestible nutrients intakes and DM and OM digestibilities observed for 45% and 50% bagasse inclusion were similar to control diet, while that 55% and 60% bagasse inclusion were lower. Cows fed control diet, and bagasse diets of 45%, and 50% levels had the nutritional requirements attended, that guaranteed 12 kg/d of milk yield. The crude protein intake and digestibility of cows fed 45%, 50%, and 55% of bagasse inclusion were similar to control diet. The neutral detergent fiber (NDF) intake and digestibility differ for all bagasse diets related to control diet, while the non-fiber carbohydrates intake and digestibility for cows fed 45% of bagasse were similar for control diet. The intakes and digestibilities of nutrients decreased linearly in function of bagasse inclusion; NDF and indigestible NDF intakes did not vary. The ruminating time, feeding and rumination efficiency, microbial protein synthesis and milk yield decreased linearly with sugarcane bagasse inclusion. Sugarcane bagasse decreases milk production; however, its inclusion level in between 45% to 50% associated to concentrate could replace diets based on spineless cactus for crossbred dairy cow's producing 12 kg/d of milk. At the second moment, At the second moment, it was aimed to evaluated the intake of nutrients and total digestible nutrients (TDN), milk yield (MY), milk yield corrected to 3.5% of fat (MYFC), fatty acids (FA) profile and milk fat nutrition quality indexes of Holstein cows fed cactus [Opuntia Stricta (Haw.) Haw] cladodes replacing sugarcane. Ten multiparous Girolando cows with milk yield of 20.93± 3.10 kg/day were allocated in a 5x5 Latin square design. It was adopted five 21 days experimental periods. The experimental diets tested were, a control diet based on sorghum-IPA-SF15 silage and four different replacement levels of sugarcane for cactus cladodes (0, 17.2; 34.4 e 51.6%). The intakes of dry matter (DM), neutral detergent fiber (NDF) and TDN, and MYFC were higher with replacement in relation to control diet. The replacement levels promoted a quadratic response for intakes of DM and TDN, MY and MYFC. The saturated FA of short and medium chain was higher for replacement than control diet. The lauric (C12: 0), myristic (C14: 0) and palmitic (C16:0) acids were higher in diets with sugarcane and cactus cladodes. The sum of conjugated linoleic acids (CLA) was higher with the control diet. According to the cactus inclusion there was a linear reduction in CLA levels. The control diet provided lower atherogenicity (AI) and thrombogenicity (TI) indexes and a lower ratio between ω6-ω3 and hypo: hypercholesterolemic (h/H). The AI increased linearly according to cactus increased and while the h/H ratio decreased. Diets containing sugar cane and forage palm elephant ear favor the consumption of DM and nutrients and, consequently, higher milk production. Sorghum silage provides better nutritional quality of cow's milk fat, presenting them as a characteristic to be beneficial to human health and meeting consumer market demand trend. The partial replacement of sugar cane by cactus cladodes provides a lower nutritional value milk fat quality.
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spelling FERREIRA, Marcelo de AndradeVÉRAS, Antonia Sherlânea ChavesPEREIRA, Luiz Gustavo RibeiroURBANO, Stela AntasBISPO, Safira ValençaCHAGAS, Juana Catarina CaririMACIEL, Michel do Valehttp://lattes.cnpq.br/1126609385404416ALMEIDA, Gleidiana Amélia Pontes de2019-06-25T14:05:32Z2018-02-27ALMEIDA, Gleidiana Amélia Pontes de. Fontes alternativas de alimentos para vacas em lactação. 2018. 92 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8107In order to evaluate alternative feeds for the production of milk in the semiarid region, considering the lack of work and the opportunity to use the sugarcane bagasse as exclusive bulk for lactating cows and the replacement of sugar cane by cactus cladodes (orelha de elefante mexicana), it was aimed at first evaluated the sugarcane bagasse as roughage for lactating dairy cows under intake, digestibility, ingestive behavior, milk yield, milk composition and microbial protein synthesis. Ten girolando cows at ±25.6 kg of body weight and at 30.7 days in milk were distributed into two contemporaneous 5x5 Latin square. Five experimental periods of 21 days were adopted (14 first day of diets adaptations and the last 7 days for data and samples collections). Experimental diets consisted of four different levels of sugarcane bagasse (45, 50, 55 and 60%) and one control diet commonly adopted in the region, based on spineless cactus (25% sugarcane bagasse), formulated to meet 12 kg/d milk yield.The dry matter (DM), organic matter (OM), and total digestible nutrients intakes and DM and OM digestibilities observed for 45% and 50% bagasse inclusion were similar to control diet, while that 55% and 60% bagasse inclusion were lower. Cows fed control diet, and bagasse diets of 45%, and 50% levels had the nutritional requirements attended, that guaranteed 12 kg/d of milk yield. The crude protein intake and digestibility of cows fed 45%, 50%, and 55% of bagasse inclusion were similar to control diet. The neutral detergent fiber (NDF) intake and digestibility differ for all bagasse diets related to control diet, while the non-fiber carbohydrates intake and digestibility for cows fed 45% of bagasse were similar for control diet. The intakes and digestibilities of nutrients decreased linearly in function of bagasse inclusion; NDF and indigestible NDF intakes did not vary. The ruminating time, feeding and rumination efficiency, microbial protein synthesis and milk yield decreased linearly with sugarcane bagasse inclusion. Sugarcane bagasse decreases milk production; however, its inclusion level in between 45% to 50% associated to concentrate could replace diets based on spineless cactus for crossbred dairy cow's producing 12 kg/d of milk. At the second moment, At the second moment, it was aimed to evaluated the intake of nutrients and total digestible nutrients (TDN), milk yield (MY), milk yield corrected to 3.5% of fat (MYFC), fatty acids (FA) profile and milk fat nutrition quality indexes of Holstein cows fed cactus [Opuntia Stricta (Haw.) Haw] cladodes replacing sugarcane. Ten multiparous Girolando cows with milk yield of 20.93± 3.10 kg/day were allocated in a 5x5 Latin square design. It was adopted five 21 days experimental periods. The experimental diets tested were, a control diet based on sorghum-IPA-SF15 silage and four different replacement levels of sugarcane for cactus cladodes (0, 17.2; 34.4 e 51.6%). The intakes of dry matter (DM), neutral detergent fiber (NDF) and TDN, and MYFC were higher with replacement in relation to control diet. The replacement levels promoted a quadratic response for intakes of DM and TDN, MY and MYFC. The saturated FA of short and medium chain was higher for replacement than control diet. The lauric (C12: 0), myristic (C14: 0) and palmitic (C16:0) acids were higher in diets with sugarcane and cactus cladodes. The sum of conjugated linoleic acids (CLA) was higher with the control diet. According to the cactus inclusion there was a linear reduction in CLA levels. The control diet provided lower atherogenicity (AI) and thrombogenicity (TI) indexes and a lower ratio between ω6-ω3 and hypo: hypercholesterolemic (h/H). The AI increased linearly according to cactus increased and while the h/H ratio decreased. Diets containing sugar cane and forage palm elephant ear favor the consumption of DM and nutrients and, consequently, higher milk production. Sorghum silage provides better nutritional quality of cow's milk fat, presenting them as a characteristic to be beneficial to human health and meeting consumer market demand trend. The partial replacement of sugar cane by cactus cladodes provides a lower nutritional value milk fat quality.Com intuito de avaliar alimentos alternativos para a produção de leite no semiárido, tendo em vista a falta de trabalhos e a oportunidade de uso do bagaço de cana-de-açúcar como volumoso exclusivo para vacas em lactação e a substituição da cana-de-açúcar por palma forrageira orelha de elefante, objetivou-se, em primeiro instante, avaliar o bagaço de cana-de-açúcar como forragem para vacas de leite em lactação sob o consumo, digestibilidade, comportamento ingestivo, produção e composição de leite e síntese de proteína microbiana. Dez vacas da raça girolando com peso médio inicial de 450 ±25,6 353 kg e aos 143,7 ± 30,7 dias em lactação fora distribuídas em dois quadrados latinos contemporâneos 5 x 5. Cinco períodos experimentais de 21 dias foram adotados (1° ao 14° dia: período de adaptação às dietas experimentais; 15° ao 21° dia: período de coleta de dados e amostras). As dietas experimentais consistiram de quatro diferentes níveis de bagaço de cana-de-açúcar (45, 50, 55 e 60%) e a uma dieta controle a qual é comumente adotada na região, baseada em palma forrageira e com 25% de inclusão de bagaço de cana-de-açúcar, formulada para atender vacas com produção de 12 kg/dia de leite. O consumo de matéria seca (MS), matéria orgânica (MO), nutrientes digestíveis totais 361 (NDT) e os coeficientes de digestibilidade para MS e MO observados para os níveis de inclusão de bagaço de 45 e 50% foram similares à dieta controle, enquanto que os níveis 55 e 60% de inclusão de bagaço apresentaram menores valores. As vacas alimentadas com a dieta controle e com as dietas com nível de inclusão de bagaço de cana de 45%, e 50% obtiveram seus requerimentos nutricionais atendidos, garantindo, assim, a produção de 12 kg/dia de leite. O consumo e digestibilidade de proteína das vacas alimentadas com 45, 50 e 55% de bagaço de cana foram similares à dieta controle. O consumo e digestibilidade da fibra em detergente neutro (FDN) foram diferentes entre a dieta controle e todas as dietas com diferentes níveis de inclusão de bagaço de cana; já o consumo e a digestibilidade de carboidratos não fibrosos para as vacas alimentadas com 45% de inclusão de bagaço foram similares à dieta controle. Os valores observados para os consumos e coeficientes de digestibilidade dos nutrientes reduziram linearmente em função do aumento dos níveis de inclusão de bagaço de cana; os consumos de FDN indigestível e FDN não foram alterados. O tempo em ruminação, alimentação, a eficiência em ruminação e em alimentação, bem como a síntese de proteína microbiana e a produção de leite, reduziram linearmente com a inclusão de bagaço de cana nas dietas. O bagaço de cana-de-açúcar reduz a produção de leite; no entanto, sua inclusão entre os níveis de 45 a 50% associada ao concentrado pode substituir dietas baseadas em palma forrageira para vacas mestiças em lactação produzindo 12 kg/dia de leite. No segundo instante, objetivou-se avaliar o consumo de matéria seca (MS) e nutrientes digestíveis totais (NDT), produção de leite (PL) e produção de leite corrigida para 3,5% de gordura (PLCG), perfil de ácidos graxos (AG) e índices de qualidade nutricional da gordura do leite de vacas holandesas alimentadas com palma forrageira (Opuntia Stricta (Haw.) Haw) em substituição à cana-de-açúcar. Dez vacas holandesas com produção média de 20,93 ± 3,10 kg de leite/dia foram distribuídas em dois quadrados latinos 5x5. Cinco períodos com duração de 21 dias cada foram adotados. Utilizou-se uma dieta controle à base de silagem de sorgo-IPA-SF15 e quatro níveis de substituição de cana-de-açúcar por palma Orelha de Elefante. O consumo de MS, a PLCG, o consumo de FDN e NDT foram superiores com a substituição em relação à dieta controle. A substituição proporcionou efeito quadrático sobre consumo de MS e NDT, PL e PLCG. Os ácidos graxos de cadeia curta (AGCC) e média (AGCM), com a substituição, apresentaram quantidades superiores ao controle. A concentração de ácidos graxos 393 saturados (AGS) aumentou linearmente com a inclusão de palma. Os ácidos láurico (C12:0), mirístico (C14:0) e palmítico (C16:0) foram superiores nas dietas com cana-de-açúcar e palma. O somatório de ácidos linoleicos conjugados (CLA) foi maior com a dieta controle. Com a inclusão de palma houve redução linear nos teores de CLA. A dieta controle proporcionou menores índices de aterogenicidade (IA) e trombogenicidade (IT) e uma menor relação entre ω6-ω3 e hipo:hipercolesterolêmico (h/H). O IA aumentou linearmente com a inclusão de palma e a relação h/H reduzida. As dietas contendo cana-de-açúcar e palma forrageira orelha de elefante favorecem o consumo de MS e nutrientes e, consequentemente maior produção de leite. A silagem de sorgo proporciona melhor qualidade nutricional da gordura do leite de vacas, tendo, como característica, ser benéfico à saúde humana, atendendo as exigências do mercado consumidor. A substituição parcial da cana-de-açúcar por palma orelha de elefante proporciona uma gordura do leite de menor valor nutricional.Submitted by Mario BC (mario@bc.ufrpe.br) on 2019-06-25T14:05:32Z No. of bitstreams: 1 Gleidiana Amelia Pontes de Almeida.pdf: 1928176 bytes, checksum: 98c40a7cb9ca4d059c0fef0190541efd (MD5)Made available in DSpace on 2019-06-25T14:05:32Z (GMT). No. of bitstreams: 1 Gleidiana Amelia Pontes de Almeida.pdf: 1928176 bytes, checksum: 98c40a7cb9ca4d059c0fef0190541efd (MD5) Previous issue date: 2018-02-27application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em ZootecniaUFRPEBrasilDepartamento de ZootecniaBovino de leiteNutrição animalAlimento alternativoCIENCIAS AGRARIAS::ZOOTECNIAFontes alternativas de alimentos para vacas em lactaçãoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis-3881065194686295060600600600-76856541506829724321346858981270845602info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALGleidiana Amelia Pontes de Almeida.pdfGleidiana Amelia Pontes de Almeida.pdfapplication/pdf1928176http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8107/2/Gleidiana+Amelia+Pontes+de+Almeida.pdf98c40a7cb9ca4d059c0fef0190541efdMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8107/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/81072019-06-25 11:05:32.319oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-05-28T12:36:32.401894Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false
dc.title.por.fl_str_mv Fontes alternativas de alimentos para vacas em lactação
title Fontes alternativas de alimentos para vacas em lactação
spellingShingle Fontes alternativas de alimentos para vacas em lactação
ALMEIDA, Gleidiana Amélia Pontes de
Bovino de leite
Nutrição animal
Alimento alternativo
CIENCIAS AGRARIAS::ZOOTECNIA
title_short Fontes alternativas de alimentos para vacas em lactação
title_full Fontes alternativas de alimentos para vacas em lactação
title_fullStr Fontes alternativas de alimentos para vacas em lactação
title_full_unstemmed Fontes alternativas de alimentos para vacas em lactação
title_sort Fontes alternativas de alimentos para vacas em lactação
author ALMEIDA, Gleidiana Amélia Pontes de
author_facet ALMEIDA, Gleidiana Amélia Pontes de
author_role author
dc.contributor.advisor1.fl_str_mv FERREIRA, Marcelo de Andrade
dc.contributor.advisor-co1.fl_str_mv VÉRAS, Antonia Sherlânea Chaves
dc.contributor.advisor-co2.fl_str_mv PEREIRA, Luiz Gustavo Ribeiro
dc.contributor.referee1.fl_str_mv URBANO, Stela Antas
dc.contributor.referee2.fl_str_mv BISPO, Safira Valença
dc.contributor.referee3.fl_str_mv CHAGAS, Juana Catarina Cariri
dc.contributor.referee4.fl_str_mv MACIEL, Michel do Vale
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/1126609385404416
dc.contributor.author.fl_str_mv ALMEIDA, Gleidiana Amélia Pontes de
contributor_str_mv FERREIRA, Marcelo de Andrade
VÉRAS, Antonia Sherlânea Chaves
PEREIRA, Luiz Gustavo Ribeiro
URBANO, Stela Antas
BISPO, Safira Valença
CHAGAS, Juana Catarina Cariri
MACIEL, Michel do Vale
dc.subject.por.fl_str_mv Bovino de leite
Nutrição animal
Alimento alternativo
topic Bovino de leite
Nutrição animal
Alimento alternativo
CIENCIAS AGRARIAS::ZOOTECNIA
dc.subject.cnpq.fl_str_mv CIENCIAS AGRARIAS::ZOOTECNIA
description In order to evaluate alternative feeds for the production of milk in the semiarid region, considering the lack of work and the opportunity to use the sugarcane bagasse as exclusive bulk for lactating cows and the replacement of sugar cane by cactus cladodes (orelha de elefante mexicana), it was aimed at first evaluated the sugarcane bagasse as roughage for lactating dairy cows under intake, digestibility, ingestive behavior, milk yield, milk composition and microbial protein synthesis. Ten girolando cows at ±25.6 kg of body weight and at 30.7 days in milk were distributed into two contemporaneous 5x5 Latin square. Five experimental periods of 21 days were adopted (14 first day of diets adaptations and the last 7 days for data and samples collections). Experimental diets consisted of four different levels of sugarcane bagasse (45, 50, 55 and 60%) and one control diet commonly adopted in the region, based on spineless cactus (25% sugarcane bagasse), formulated to meet 12 kg/d milk yield.The dry matter (DM), organic matter (OM), and total digestible nutrients intakes and DM and OM digestibilities observed for 45% and 50% bagasse inclusion were similar to control diet, while that 55% and 60% bagasse inclusion were lower. Cows fed control diet, and bagasse diets of 45%, and 50% levels had the nutritional requirements attended, that guaranteed 12 kg/d of milk yield. The crude protein intake and digestibility of cows fed 45%, 50%, and 55% of bagasse inclusion were similar to control diet. The neutral detergent fiber (NDF) intake and digestibility differ for all bagasse diets related to control diet, while the non-fiber carbohydrates intake and digestibility for cows fed 45% of bagasse were similar for control diet. The intakes and digestibilities of nutrients decreased linearly in function of bagasse inclusion; NDF and indigestible NDF intakes did not vary. The ruminating time, feeding and rumination efficiency, microbial protein synthesis and milk yield decreased linearly with sugarcane bagasse inclusion. Sugarcane bagasse decreases milk production; however, its inclusion level in between 45% to 50% associated to concentrate could replace diets based on spineless cactus for crossbred dairy cow's producing 12 kg/d of milk. At the second moment, At the second moment, it was aimed to evaluated the intake of nutrients and total digestible nutrients (TDN), milk yield (MY), milk yield corrected to 3.5% of fat (MYFC), fatty acids (FA) profile and milk fat nutrition quality indexes of Holstein cows fed cactus [Opuntia Stricta (Haw.) Haw] cladodes replacing sugarcane. Ten multiparous Girolando cows with milk yield of 20.93± 3.10 kg/day were allocated in a 5x5 Latin square design. It was adopted five 21 days experimental periods. The experimental diets tested were, a control diet based on sorghum-IPA-SF15 silage and four different replacement levels of sugarcane for cactus cladodes (0, 17.2; 34.4 e 51.6%). The intakes of dry matter (DM), neutral detergent fiber (NDF) and TDN, and MYFC were higher with replacement in relation to control diet. The replacement levels promoted a quadratic response for intakes of DM and TDN, MY and MYFC. The saturated FA of short and medium chain was higher for replacement than control diet. The lauric (C12: 0), myristic (C14: 0) and palmitic (C16:0) acids were higher in diets with sugarcane and cactus cladodes. The sum of conjugated linoleic acids (CLA) was higher with the control diet. According to the cactus inclusion there was a linear reduction in CLA levels. The control diet provided lower atherogenicity (AI) and thrombogenicity (TI) indexes and a lower ratio between ω6-ω3 and hypo: hypercholesterolemic (h/H). The AI increased linearly according to cactus increased and while the h/H ratio decreased. Diets containing sugar cane and forage palm elephant ear favor the consumption of DM and nutrients and, consequently, higher milk production. Sorghum silage provides better nutritional quality of cow's milk fat, presenting them as a characteristic to be beneficial to human health and meeting consumer market demand trend. The partial replacement of sugar cane by cactus cladodes provides a lower nutritional value milk fat quality.
publishDate 2018
dc.date.issued.fl_str_mv 2018-02-27
dc.date.accessioned.fl_str_mv 2019-06-25T14:05:32Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.citation.fl_str_mv ALMEIDA, Gleidiana Amélia Pontes de. Fontes alternativas de alimentos para vacas em lactação. 2018. 92 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.
dc.identifier.uri.fl_str_mv http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8107
identifier_str_mv ALMEIDA, Gleidiana Amélia Pontes de. Fontes alternativas de alimentos para vacas em lactação. 2018. 92 f. Tese (Programa de Pós-Graduação em Zootecnia) - Universidade Federal Rural de Pernambuco, Recife.
url http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8107
dc.language.iso.fl_str_mv por
language por
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dc.relation.confidence.fl_str_mv 600
600
600
dc.relation.department.fl_str_mv -7685654150682972432
dc.relation.cnpq.fl_str_mv 1346858981270845602
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dc.publisher.none.fl_str_mv Universidade Federal Rural de Pernambuco
dc.publisher.program.fl_str_mv Programa de Pós-Graduação em Zootecnia
dc.publisher.initials.fl_str_mv UFRPE
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Departamento de Zootecnia
publisher.none.fl_str_mv Universidade Federal Rural de Pernambuco
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