Data/hora: 02/06/2024 05:28:59

Provedor de dados: | 96
País: | Brazil
Título: | Economic analysis, performance, and feed efficiency in feedlot lambs
Autores: | Lima,Natália Ludmila Lins; Ribeiro,Carolina Resende de Freitas; Sá,Hemilly Cristina Menezes de; Leopoldino-Júnior,Izac; Cavalcanti,Luigi Francis Lima; Santana,Ronan Aparecido Valadares; Furusho-Garcia,Iraides Ferreira; Pereira,Idalmo Garcia.
Data: | 2017-10-01
Ano: | 2017
Palavras-chave: | Cost; Profit; Revenue; RFI; RIG; Sheep.
Resumo: | ABSTRACT The objective of this study was to evaluate residual feed intake (RFI), residual intake and body weight gain (RIG) and their relationship with other traits of efficiency, performance, and economic analysis of sheep. Lambs (n = 102) were evaluated during 56 days and a herd consisting of 500 ewes was simulated with the mean of dry matter intake (DMI) and final body weight of the lambs, the same as that of the experimental lambs. The lambs were fed hay-based diet of Tifton 85 (Cynodon spp.), corn, and soybean in the voluminous:concentrate ratio of 35:65. Residual feed intake and RIG were correlated with DMI, feed conversion ratio, and feed efficiency. Residual intake and body weight gain were positively correlated with average daily gain, relative growth rate, and Kleiber's rate. The most efficient production systems (lower RFI and higher RIG) had lower costs and higher profit margins. The net present value (NPV) and internal rate of return (IRR) were higher in systems with more efficient lambs. In systems with less efficient lambs, NPV and IRR were negative and lower, respectively. Efficient animals for RFI and RIG showed satisfactory performance and better economic results.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017001000821
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/s1806-92902017001000005
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.46 n.10 2017
Fonte: | info:eu-repo/semantics/openAccess