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https://locus.ufv.br//handle/123456789/22943
Tipo: | Artigo |
Título: | Supplementation strategies for Nellore female calves in creep feeding to improve the performance: nutritional and metabolic responses |
Autor(es): | Almeida, Daniel Mageste de Marcondes, Marcos Inácio Rennó, Luciana Navajas Martins, Leandro Soares Marquez, David Esteban Contreras Villadiego, Faider Castaño Saldarriaga, Felipe Velez Ortega, Román Maza Moreno, Deilen Paff Sotelo Lopes, Sidnei Antônio Cardozo, Manuela Acevedo Paulino, Mário Fonseca |
Abstract: | The objective of this study was to evaluate the effects of supplementation strategy on performance, nutritional and metabolic characteristics of Nellore suckling female calves, on grazing Urochloa decumbens during the rainy-dry transition period. Forty-four Nellore female calves, averaging 147.6 ± 1.34 kg (4 months), were used. A single supplement 20% of crude protein of dry matter was provided, consisting of daily supplement at 0.0, 0.2, 0.4, or 0.6% of body weight. A positive linear effect (P < 0.05) on final body weight and average weight gain of female calves was observed with increased supplementation. Supplementation increased consumption, in kilograms per day, of dry matter (DM), organic matter (OM), crude protein (CP), digested dry matter, and total digestible nutrients (TDN), all calculated as % of dry matter. There was no effect of supplementation on the consumption in kilograms per day of neutral detergent fiber corrected for ash and protein (apNDF) (P > 0.05). Supplementation increased, in a quadratic way, the total apparent digestibility coefficient of DM, OM, CP, apNDF, and TDN (P < 0.05). There was no effect of supplementation (P > 0.05) on non-esterified fatty acid concentrations. There was a positive linear effect (P < 0.05) of supplementation on insulin concentrations. In this study, it is concluded that linearly increasing the feeding level of a supplement with 20% crude protein (% of DM) in the range of 0.2–0.6% of body weight improves the performance, nutritional and metabolic characteristics of the animals, considering these pasture characteristics. |
Palavras-chave: | Bos indicus Creep feeding Insulin Tropical pasture |
Editor: | Tropical Animal Health and Production |
Tipo de Acesso: | Springer Science+Business Media B.V., part of Springer Nature 2018 |
URI: | https://doi.org/10.1007/s11250-018-1619-2 http://www.locus.ufv.br/handle/123456789/22943 |
Data do documento: | Dez-2018 |
Aparece nas coleções: | Artigos |
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Arquivo | Descrição | Tamanho | Formato | |
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artigo.pdf Until 2100-12-31 | Texto completo | 392,27 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
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