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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
11/04/2023 |
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Data da última atualização: |
28/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NETTO, A. J.; GAMA, M. A. S. da; GUIDO, S. I.; INÁCIO, J. G.; CHAGAS, J. C. C.; RAMIN, M.; RABELO, M. N.; FÉLIX, S. B.; SILVA, C. S. DA; FERREIRA, M. DE A. |
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Afiliação: |
ANTÔNIO J. NETTO, Federal Rural University of Pernambuco; MARCO ANTONIO SUNDFELD DA GAMA, CPPSE; SEBASTIÃO I. GUIDO, Agronomic Institute of Pernambuco; JONAS G. INÁCIO, Federal Rural University of Pernambuco; JUANA C. C. CHAGAS, Swedish University of Agricultural Sciences; MOHAMMAD RAMIN, Swedish University of Agricultural Sciences; MILENA N. RABELO, Federal Rural University of Pernambuco; SILAS B. FÉLIX, Federal Rural University of Pernambuco; CAMILA S. DA SILVA, Federal Rural University of Pernambuco; MARCELO DE A. FERREIRA, Federal Rural University of Pernambuco. |
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Título: |
Full-fat corn germ in diets for dairy cows as an alternative to ground corn. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Dairy Research, v. 90, n. 2, p. 111-117, may 2023. |
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DOI: |
10.1017/S0022029923000201 |
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Idioma: |
Inglês |
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Conteúdo: |
The experiments reported in this research paper address the effects of replacing ground corn (GC) with full-fat corn germ (FFCG) on nutrient intake and digestibility, nitrogen utilization efficiency, performance, and predicted methane production in dairy cows fed cactus cladodes and sugarcane. We hypothesized that the inclusion of FFCG in the diet would not alter the performance of lactating cows but would reduce the predicted methane production in vivo. Ten multiparous Holstein cows at 90 ± 10 d of lactation and yielding 24.2 ± 3.5 kg milk/d were assigned to dietary treatments consisting of different levels of replacement of GC by FFCG (0; 25; 50; 75 and 100% of diet dry matter) in a replicated 5 × 5 Latin square design with 21-d periods. Methane production was predicted using an automated gas in vitro production system. Except for ether extract intake, which increased, the intake of all nutrients decreased linearly with the replacement of GC by FFCG. The digestibility of dry matter, organic matter and neutral detergent fiber reduced, whereas the digestibility of ether extract increased linearly with FFCG. There were no changes in the digestibility of crude protein. The nitrogen intake and daily excretion in urine and feces decreased, while nitrogen use efficiency increased linearly. There was no significant effect of diets on nitrogen balance or microbial protein synthesis and efficiency. The yield of protein, lactose and total solids in milk showed a quadratic behavior. On the other hand, milk fat yield and energy-corrected milk yield decreased linearly with the replacement of GC by FFCG. No effect on pH or ammonia nitrogen was observed. The production of methane (CH4, g/kg DM) and total CH4 (g/d), and CH4 intensity decreased linearly with the replacement of GC by FFCG. In conclusion, FFCG has been shown to be an effective source of fat to reduce methane production in dairy cows, partially supporting our initial hypothesis. However, as it decreases milk fat production, it is not recommended to replace more than 50% of GC by FFCG for lactating cows fed cactus cladodes and sugarcane. MenosThe experiments reported in this research paper address the effects of replacing ground corn (GC) with full-fat corn germ (FFCG) on nutrient intake and digestibility, nitrogen utilization efficiency, performance, and predicted methane production in dairy cows fed cactus cladodes and sugarcane. We hypothesized that the inclusion of FFCG in the diet would not alter the performance of lactating cows but would reduce the predicted methane production in vivo. Ten multiparous Holstein cows at 90 ± 10 d of lactation and yielding 24.2 ± 3.5 kg milk/d were assigned to dietary treatments consisting of different levels of replacement of GC by FFCG (0; 25; 50; 75 and 100% of diet dry matter) in a replicated 5 × 5 Latin square design with 21-d periods. Methane production was predicted using an automated gas in vitro production system. Except for ether extract intake, which increased, the intake of all nutrients decreased linearly with the replacement of GC by FFCG. The digestibility of dry matter, organic matter and neutral detergent fiber reduced, whereas the digestibility of ether extract increased linearly with FFCG. There were no changes in the digestibility of crude protein. The nitrogen intake and daily excretion in urine and feces decreased, while nitrogen use efficiency increased linearly. There was no significant effect of diets on nitrogen balance or microbial protein synthesis and efficiency. The yield of protein, lactose and total solids in milk showed a quadratic behavior. O... Mostrar Tudo |
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Palavras-Chave: |
Alternative feeds; In vitro; Lipid sources; Tropical forage. |
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Thesaurus Nal: |
Methane. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| 1. |  | ZUCON, A. R. S.; MOTTA, A. C. V.; MAEDA, S.; FRIGO, C.; CARDOSO, E. R. da C.; GOTZ, L. F. Fertilidade do solo e crescimento de um plantio de Pinus taeda dado o efeito residual de 30 anos do acúmulo de necromassa no município de Rio Negrinho - SC. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 667. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.| Tipo: Resumo em Anais de Congresso |
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