Título:	Performance and economic viability of feedlot sheep fed different levels of roughage, concentrate, and water.
Autoria:	SILVA, C. M. da ARAUJO, G. G. L. de OLIVEIRA, B. Y. S. de AZEVÊDO, J. A. G. de FURTADO, D. A.
Afiliação:	CLAUDETE MARIA DA SILVA, Profª da Universidade Estadual Vale do Acaraú, UVA, Sobral, CE; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; BRUNA YASNAIA SOUZA DE OLIVEIRA, UFBA; JOSÉ AUGUSTO GOMES DE AZEVÊDO, Prof. da Universidade Estadual de Santa Cruz, UESC, Ilhéus, BA; DERMEVAL ARAÚJO FURTADO, Prof. da Universidade Federal de Campina Grande, UFCG, Campina Grande, PB.
Ano de publicação:	2016
Referência:	Semina: Ciências Agrárias, Londrina, v. 37, n. 3, p. 1595-1606, maio/jun. 2016.
Conteúdo:	The aim of this study was to evaluate performance and economic viability of producing sheep fed different levels of roughage, concentrate, and water. Forty Santa Inês crossbred sheep with an average initial weight of 18.85 ± 2.80 kg and an average age of 5.0 ± 2.0 months were distributed in a completely randomized design with a 2 × 2 factorial arrangement composed of two proportions of roughage and concentrate (30:70 and 70:30) and two levels of water supply (ad libitum, and 50% restriction), with 10 replicates. Water restriction had a negative effect (P<0.05) on the intakes of dry matter and nutrients and total and daily weight gains, regardless of the proportions of roughage and concentrate. Water restriction did not affect (P>0.05) feed conversion or feed conversion. Total weight gain, average daily gain, feed conversion, and feed efficiency were influenced by the proportions of roughage and concentrate. In conclusion, the diet with 70% roughage, associated with a water restriction of 50%, reduced the uptake of energy and protein, compromising the animal performance. The combination of the diet plus concentrate and water restricted to 50% of the free consumption provides a better cost-benefit ratio.
Thesagro:	Produção animal Ovino Ganho de Peso
NAL Thesaurus:	Feed intake Weight gain
Palavras-chave:	Consumo de água Consumo de alimento Restrição de água Animal produciton Water intake Water restriction
Digital Object Identifier:	10.5433/1679-0359.2016v37n3p1595
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)