Níveis de amido na dieta de cabras em lactação
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/56810 |
Resumo: | Starch energetically thickens diets of lactating animals and starch causes divergent productive responses among ruminant species. The objective was to evaluate the effects of dietary starch levels on the productive, digestive, behavioral and metabolic parameters of lactating goats. The experiment was carried out at the Experimental Animal Bioterium for Goats and Sheep at the Federal University of São João del-Rei (UFSJ), using 16 lactating Saanen goats, with a body weight of 48.7 ± 4.7 kg, a body condition score of 2 .3 ± 0.6, milk production of 1.9 ± 0.8 kg/day and 116 ± 3 days in lactation, distributed in a replicated Latin square with periods of 21 days and four diets: 17%, 24%, 31 % and 38% starch in dry matter (DM). The animals were fed ad libitum obeying 10% leftovers. The evaluations occurred between d15 and d21 of each experimental period. Data were analyzed with SAS PROC MIXED. The effects of starch levels were submitted to ANOVA and F test with P ≤ 0.05 and PROC REG was used to determine the regression equation with linear, quadratic or cubic effect. DM intake (1.578; 1.687; 1.847 and 2.058 kg/d), protein (CP; 0.250; 0.265; 0.277 and 0.309 kg/d) and starch (ST; 0.318; 0.466; 0.637 and 0.810 kg/d) increased linearly , while consumption of neutral detergent fiber (NDF; 0.651; 0.539; 0.562 and 0.538 kg/d) and physically effective NDF (FDNfe>8; 0.212; 0.161; 0.118 and 0.082 kg/d) decreased (P<0.05 ) with the increase of starch. All animals showed preferential ingestion of short particles, while the refusal of long particles increased (73; 69; 66 and 65) in response to the increase in starch (P<0.05). The increase in dietary starch did not affect (P>0.05) DM (73.39%) and ST (97.72%) digestibility, but linearly reduced (P<0.05) CP digestibility (82. 5; 78.59; 78.68 and 76.58%) and NDF (56.36; 48.58; 47.72 and 45.62%) and linearly increased (P<0.05) fecal starch (2 .08; 2.05; 2.63 and 3.25%) and fecal score (2.08; 2.18; 2.57 and 3.42). The animals linearly reduced (P<0.05) the chewing time (694; 627; 579 and 543 min/d) and duration of meals (69; 56; 48 and 37 min/d), while they linearly increased (P< 0.05) idle time (588; 631; 645 and 698 min/d) and the number of meals (4; 5; 5 and 7 meals/d) with increased starch. There was a reduction in serum cholesterol concentration (84.8; 77.0; 74.69 and 73.2 mg/dl) and an increase (P<0.05) in glucose (59.67; 60.43; 62.63 and 63.61 mg/dl) and gamma glutamyl transferase (52.94; 55.13; 59.5 and 63.73 U/L) by increasing starch levels. The production of milk (1.717; 1.871; 1.940 and 2.073 kg/d), fat (0.046; 0.050; 0.052 and 0.056 kg/d) and protein (0.040; 0.046; 0.046 and 0.050 kg/d) were increased with an increment of 17 to 38% of starch in the diets, without altering the milk composition. Lactating goats support diets with up to 38% starch, increase nutrient intake, milk and fat production (kg/d), with effects on energy metabolites and liver enzymes. |
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Níveis de amido na dieta de cabras em lactaçãoStarch levels in the diet of lactating goatsGlicoseGordura do leiteProdução de leitePropionatoSilagem de milho reidratadoGlucoseMilk fatMilk productionPropionateRehydrated corn silageAvaliação de Alimentos para AnimaisStarch energetically thickens diets of lactating animals and starch causes divergent productive responses among ruminant species. The objective was to evaluate the effects of dietary starch levels on the productive, digestive, behavioral and metabolic parameters of lactating goats. The experiment was carried out at the Experimental Animal Bioterium for Goats and Sheep at the Federal University of São João del-Rei (UFSJ), using 16 lactating Saanen goats, with a body weight of 48.7 ± 4.7 kg, a body condition score of 2 .3 ± 0.6, milk production of 1.9 ± 0.8 kg/day and 116 ± 3 days in lactation, distributed in a replicated Latin square with periods of 21 days and four diets: 17%, 24%, 31 % and 38% starch in dry matter (DM). The animals were fed ad libitum obeying 10% leftovers. The evaluations occurred between d15 and d21 of each experimental period. Data were analyzed with SAS PROC MIXED. The effects of starch levels were submitted to ANOVA and F test with P ≤ 0.05 and PROC REG was used to determine the regression equation with linear, quadratic or cubic effect. DM intake (1.578; 1.687; 1.847 and 2.058 kg/d), protein (CP; 0.250; 0.265; 0.277 and 0.309 kg/d) and starch (ST; 0.318; 0.466; 0.637 and 0.810 kg/d) increased linearly , while consumption of neutral detergent fiber (NDF; 0.651; 0.539; 0.562 and 0.538 kg/d) and physically effective NDF (FDNfe>8; 0.212; 0.161; 0.118 and 0.082 kg/d) decreased (P<0.05 ) with the increase of starch. All animals showed preferential ingestion of short particles, while the refusal of long particles increased (73; 69; 66 and 65) in response to the increase in starch (P<0.05). The increase in dietary starch did not affect (P>0.05) DM (73.39%) and ST (97.72%) digestibility, but linearly reduced (P<0.05) CP digestibility (82. 5; 78.59; 78.68 and 76.58%) and NDF (56.36; 48.58; 47.72 and 45.62%) and linearly increased (P<0.05) fecal starch (2 .08; 2.05; 2.63 and 3.25%) and fecal score (2.08; 2.18; 2.57 and 3.42). The animals linearly reduced (P<0.05) the chewing time (694; 627; 579 and 543 min/d) and duration of meals (69; 56; 48 and 37 min/d), while they linearly increased (P< 0.05) idle time (588; 631; 645 and 698 min/d) and the number of meals (4; 5; 5 and 7 meals/d) with increased starch. There was a reduction in serum cholesterol concentration (84.8; 77.0; 74.69 and 73.2 mg/dl) and an increase (P<0.05) in glucose (59.67; 60.43; 62.63 and 63.61 mg/dl) and gamma glutamyl transferase (52.94; 55.13; 59.5 and 63.73 U/L) by increasing starch levels. The production of milk (1.717; 1.871; 1.940 and 2.073 kg/d), fat (0.046; 0.050; 0.052 and 0.056 kg/d) and protein (0.040; 0.046; 0.046 and 0.050 kg/d) were increased with an increment of 17 to 38% of starch in the diets, without altering the milk composition. Lactating goats support diets with up to 38% starch, increase nutrient intake, milk and fat production (kg/d), with effects on energy metabolites and liver enzymes.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)O amido adensa energeticamente dietas de animais lactantes e o amido provoca respostas produtivas divergentes entre espécies de ruminantes. Objetivou-se avaliar os efeitos dos níveis de amido dietético sobre os parâmetros produtivos, digestivos, comportamentais e metabólicos de cabras em lactação. O experimento foi conduzido no Biotério Experimental de Caprinos e Ovinos da Universidade Federal de São João del-Rei (UFSJ), utilizando 16 cabras Saanen em lactação, com peso corporal de 48,7 ± 4,7 kg, escore de condição corporal de 2,3 ± 0,6, produção de leite de 1,9 ± 0,8 kg/dia e 116 ± 3 dias em lactação, distribuídas em quadrado latino replicado com períodos de 21 dias e quatro dietas: 17%, 24%, 31% e 38% de amido na matéria seca (MS). Os animais foram alimentados de forma ad libitum obedecendo 10% de sobras. As avaliações ocorreram entre o d15 e d21 de cada período experimental. Os dados foram analisados com o PROC MIXED do SAS. Os efeitos dos níveis de amido foram submetidos à ANOVA e teste F com P ≤ 0,05 e utilizou-se o PROC REG para determinar a equação de regressão com efeito linear, quadrático ou cúbico. O consumo de MS (1,578; 1,687; 1,847 e 2,058 kg/d), proteína (PB; 0,250; 0,265; 0,277 e 0,309 kg/d) e amido (AM; 0,318; 0,466; 0,637 e 0,810 kg/d) aumentaram linearmente, enquanto o consumo de fibra em detergente neutro (FDN; 0,651; 0,539; 0,562 e 0,538 kg/d) e FDN fisicamente efetiva (FDNfe>8; 0,212; 0,161; 0,118 e 0,082 kg/d) reduziram (P<0,05) com o incremento de amido. Todos os animais apresentaram ingestão preferencial de partículas curtas, enquanto aumentaram a recusa por partículas longas (73; 69; 66 e 65) em resposta ao aumento de amido (P<0,05). O aumento de amido dietético não afetou (P>0,05) a digestibilidade da MS (73,39%) e AM (97,72%), mas reduziu linearmente (P<0,05) a digestibilidade da PB (82,5; 78,59; 78,68 e 76,58%) e FDN (56,36; 48,58; 47,72 e 45,62%) e aumentou linearmente (P<0,05) o amido fecal (2,08; 2,05; 2,63 e 3,25%) e escore de fezes (2,08; 2,18; 2,57 e 3,42). Os animais reduziram linearmente (P<0,05) o tempo em mastigação (694; 627; 579 e 543 min/d) e duração das refeições (69; 56; 48 e 37 min/d), enquanto aumentaram linearmente (P<0,05) o tempo em ócio (588; 631; 645 e 698 min/d) e o número de refeições (4; 5; 5 e 7 refeições/d) com aumento de amido. Houve redução na concentração séricas de colesterol (84,8; 77,0; 74,69 e 73,2 mg/dl) e aumento (P<0,05) de glicose (59,67; 60,43; 62,63 e 63,61 mg/dl) e gama glutamil transferase (52,94; 55,13; 59,5 e 63,73 U/L) pelos teores amiláceos crescentes. A produção de leite (1,717; 1,871; 1,940 e 2,073 kg/d), gordura (0,046; 0,050; 0,052 e 0,056 kg/d) e proteína (0,040; 0,046; 0,046 e 0,050 kg/d) foram aumentadas com incremento de 17 a 38% de amido nas dietas, sem alterar a composição láctea. Cabras em lactação suportam dietas com até 38% de amido, aumentam o consumo de nutrientes, produção de leite e de gordura (kg/d), com efeitos sobre metabólitos energéticos e enzimas hepáticas.Universidade Federal de LavrasPrograma de Pós-graduação em ZootecniaUFLAbrasilDepartamento de ZootecniaLeite, Rafael FernandesBatista, Erick DarlissonLeite, Rafael FernandesBatista, Erick DarlissonDanes, Marina de Arruda CamargoUrbano, Stela AntasRibeiro, Pedro Henrique Cavalcante2023-05-16T18:30:47Z2023-05-16T18:30:47Z2023-05-162023-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfRIBEIRO, P. H. C. Níveis de amido na dieta de cabras em lactação. 2023. 63 p. Dissertação (Mestrado em Zootecnia)–Universidade Federal de Lavras, Lavras, 2023.http://repositorio.ufla.br/jspui/handle/1/56810porAttribution-ShareAlike 4.0 Internationalhttp://creativecommons.org/licenses/by-sa/4.0/info:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLA2023-05-16T18:30:48Zoai:localhost:1/56810Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-16T18:30:48Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Níveis de amido na dieta de cabras em lactação Starch levels in the diet of lactating goats |
title |
Níveis de amido na dieta de cabras em lactação |
spellingShingle |
Níveis de amido na dieta de cabras em lactação Ribeiro, Pedro Henrique Cavalcante Glicose Gordura do leite Produção de leite Propionato Silagem de milho reidratado Glucose Milk fat Milk production Propionate Rehydrated corn silage Avaliação de Alimentos para Animais |
title_short |
Níveis de amido na dieta de cabras em lactação |
title_full |
Níveis de amido na dieta de cabras em lactação |
title_fullStr |
Níveis de amido na dieta de cabras em lactação |
title_full_unstemmed |
Níveis de amido na dieta de cabras em lactação |
title_sort |
Níveis de amido na dieta de cabras em lactação |
author |
Ribeiro, Pedro Henrique Cavalcante |
author_facet |
Ribeiro, Pedro Henrique Cavalcante |
author_role |
author |
dc.contributor.none.fl_str_mv |
Leite, Rafael Fernandes Batista, Erick Darlisson Leite, Rafael Fernandes Batista, Erick Darlisson Danes, Marina de Arruda Camargo Urbano, Stela Antas |
dc.contributor.author.fl_str_mv |
Ribeiro, Pedro Henrique Cavalcante |
dc.subject.por.fl_str_mv |
Glicose Gordura do leite Produção de leite Propionato Silagem de milho reidratado Glucose Milk fat Milk production Propionate Rehydrated corn silage Avaliação de Alimentos para Animais |
topic |
Glicose Gordura do leite Produção de leite Propionato Silagem de milho reidratado Glucose Milk fat Milk production Propionate Rehydrated corn silage Avaliação de Alimentos para Animais |
description |
Starch energetically thickens diets of lactating animals and starch causes divergent productive responses among ruminant species. The objective was to evaluate the effects of dietary starch levels on the productive, digestive, behavioral and metabolic parameters of lactating goats. The experiment was carried out at the Experimental Animal Bioterium for Goats and Sheep at the Federal University of São João del-Rei (UFSJ), using 16 lactating Saanen goats, with a body weight of 48.7 ± 4.7 kg, a body condition score of 2 .3 ± 0.6, milk production of 1.9 ± 0.8 kg/day and 116 ± 3 days in lactation, distributed in a replicated Latin square with periods of 21 days and four diets: 17%, 24%, 31 % and 38% starch in dry matter (DM). The animals were fed ad libitum obeying 10% leftovers. The evaluations occurred between d15 and d21 of each experimental period. Data were analyzed with SAS PROC MIXED. The effects of starch levels were submitted to ANOVA and F test with P ≤ 0.05 and PROC REG was used to determine the regression equation with linear, quadratic or cubic effect. DM intake (1.578; 1.687; 1.847 and 2.058 kg/d), protein (CP; 0.250; 0.265; 0.277 and 0.309 kg/d) and starch (ST; 0.318; 0.466; 0.637 and 0.810 kg/d) increased linearly , while consumption of neutral detergent fiber (NDF; 0.651; 0.539; 0.562 and 0.538 kg/d) and physically effective NDF (FDNfe>8; 0.212; 0.161; 0.118 and 0.082 kg/d) decreased (P<0.05 ) with the increase of starch. All animals showed preferential ingestion of short particles, while the refusal of long particles increased (73; 69; 66 and 65) in response to the increase in starch (P<0.05). The increase in dietary starch did not affect (P>0.05) DM (73.39%) and ST (97.72%) digestibility, but linearly reduced (P<0.05) CP digestibility (82. 5; 78.59; 78.68 and 76.58%) and NDF (56.36; 48.58; 47.72 and 45.62%) and linearly increased (P<0.05) fecal starch (2 .08; 2.05; 2.63 and 3.25%) and fecal score (2.08; 2.18; 2.57 and 3.42). The animals linearly reduced (P<0.05) the chewing time (694; 627; 579 and 543 min/d) and duration of meals (69; 56; 48 and 37 min/d), while they linearly increased (P< 0.05) idle time (588; 631; 645 and 698 min/d) and the number of meals (4; 5; 5 and 7 meals/d) with increased starch. There was a reduction in serum cholesterol concentration (84.8; 77.0; 74.69 and 73.2 mg/dl) and an increase (P<0.05) in glucose (59.67; 60.43; 62.63 and 63.61 mg/dl) and gamma glutamyl transferase (52.94; 55.13; 59.5 and 63.73 U/L) by increasing starch levels. The production of milk (1.717; 1.871; 1.940 and 2.073 kg/d), fat (0.046; 0.050; 0.052 and 0.056 kg/d) and protein (0.040; 0.046; 0.046 and 0.050 kg/d) were increased with an increment of 17 to 38% of starch in the diets, without altering the milk composition. Lactating goats support diets with up to 38% starch, increase nutrient intake, milk and fat production (kg/d), with effects on energy metabolites and liver enzymes. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-05-16T18:30:47Z 2023-05-16T18:30:47Z 2023-05-16 2023-03-01 |
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 |
RIBEIRO, P. H. C. Níveis de amido na dieta de cabras em lactação. 2023. 63 p. Dissertação (Mestrado em Zootecnia)–Universidade Federal de Lavras, Lavras, 2023. http://repositorio.ufla.br/jspui/handle/1/56810 |
identifier_str_mv |
RIBEIRO, P. H. C. Níveis de amido na dieta de cabras em lactação. 2023. 63 p. Dissertação (Mestrado em Zootecnia)–Universidade Federal de Lavras, Lavras, 2023. |
url |
http://repositorio.ufla.br/jspui/handle/1/56810 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-ShareAlike 4.0 International http://creativecommons.org/licenses/by-sa/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-ShareAlike 4.0 International http://creativecommons.org/licenses/by-sa/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Lavras Programa de Pós-graduação em Zootecnia UFLA brasil Departamento de Zootecnia |
publisher.none.fl_str_mv |
Universidade Federal de Lavras Programa de Pós-graduação em Zootecnia UFLA brasil Departamento de Zootecnia |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
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UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1784550153998303232 |