Consumption, apparent digestibility and nutrient balance of diets with bovine milk whey for goats.

Abstract: Increasing milk production in countries such as Brazil, India and Pakistan implies the generation of dairy by-products such as nutrient-rich bovine whey which, if used in feeding small ruminants would reduce environmental waste and add value to this by-product. Twenty entire male kids weighing an average 17 kg and 5 months age were used. The diet control was composed by Aruana hay, milled whole maize, pelleted soybean and limestone. Bovine cheese whey at 1.5; 3.0 and 4.5% (DM basis) was added to experimental diets. Variables measured included intake, nutrient apparent digestibility, energy balance, and nitrogen balance. Regression equations and Pearson correlations (P ? 0.05) were determined. The 3% diet resulted in greater ether extract (EE) (g/kg0.75) and digestible EE (P ? 0.05) concentrations compared to 0% whey. The consumption of cellulose (g/kg0.75) was greater (P ? 0.05) for kids on the 3.0% diet compared to 0 or 1.5%. Nutrient apparent digestibility was not affected (P > 0.05) by the inclusion of whey. Kids on the 4.5% diet excreted more (P - 0.05) fecal N than those fed no whey; these also retained less N (P ? 0.05) compared to animals fed 3.0% or less whey in their diet. All diets resulted in positive energy and nitrogen balances. Bovine whey can be included in male kid diets up to 4.5% of diet without negatively affecting consumption or apparent digestibility of those diets. [Consumo, digestibilidade aparente e balanço de nutrientes de dietas com soro de leite bovino para caprinos].

Bibliographic Details

Main Authors:	ARAÚJO, A. R., MUIR, J. P., VASCONCELOS, A. M. de, POMPEU, R. C. F. F., GUEDES, L. F., COSTA, C. dos S., CARNEIRO, M. S. de S., CAMPOS, W. E., ROGERIO, M. C. P.
Other Authors:	ALEXANDRE RIBEIRO ARAÚJO, Universidade Federal do Piauí (UFPI) - Floriano, PI, Brasil; JAMES PIERRE MUIR, Texas A&M AgriLife Research - Stephenville, TX, USA; ANGELA MARIA DE VASCONCELOS, Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE, Brasil.; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; LUCIANA FREITAS GUEDES; CLÉSIO DOS SANTOS COSTA, Pós-graduação - Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil.; MARIA SOCORRO DE SOUSA CARNEIRO, Pós-graduação - Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil.; WARLEY ÉFREM CAMPOS, Ministério da Agricultura, Pecuária e Abastecimento (MAPA) - Brasília, DF, Brasil.; MARCOS CLAUDIO PINHEIRO ROGERIO, CNPC.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2020-11-19
Subjects:	Dairy by-products, Apparent digestibility, Caprino, Cabrito, Nutrição Animal, Alimento Para Animal, Soro de Leite, Small ruminants, Ruminant nutrition, Kids (goats), Animal feeders, Animal feeding, Byproducts, Nutrients, Nutrient balance, Nitrogen balance,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126817 http://dx.doi.org/10.5433/1679-0359.2020v41n5p1719
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