Feedlot of lambs fed biodiesel co-products: performance, commercial cuts and economic evaluation

Autor(es)

Romanzini, Elieder Prates ^[1] ; da Silva Sobrinho, Americo Garcia ^[1] ; Valenca, Roberta de Lima ^[1] ; Borghi, Thiago Henrique ^[1] ; de Andrade, Nomaiaci ^[1] ; Bernardes, Priscila Arrigucci ^[2]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ Unesp, Sch Agr & Veterinarian Sci, Dept Anim Sci, Jaboticabal, SP - Brazil

^[2] Sao Paulo State Univ Unesp, Sch Agr & Veterinarian Sci, Dept Exact Sci, Jaboticabal, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: TROPICAL ANIMAL HEALTH AND PRODUCTION; v. 50, n. 1, p. 155-160, JAN 2018.
• Citações Web of Science: 1

Resumo

The aim of this study was to evaluate the animal performance, commercial cuts, and their yields within the production system, and economics of sheep production, of lambs finished in feedlots and fed with or without biodiesel co-products. A total of 40 lambs were divided into four biodiesel co-product treatment groups: a no-treatment control; peanut meal; crude glycerin; and peanut meal + crude glycerin. Animal performance did not differ (P > 0.05) among the treatment groups, where the average daily gain was close to 0.26 kg/day. Likewise, the quantitative carcass characteristics did not differ (P > 0.05) and the biological mean yield was 54.92%. Similarly, the commercial cuts and their yields did not differ (P >= 0.09) among the treatments. These results took into consideration the standard, age, and slaughter body weight of the animals. The economic evaluation determined that peanut meal was the best co-product for use in finishing lambs in a feedlot. Hence, all the biodiesel co-products evaluated can be used at feedlots to finish lambs without changing the variables measured. (AU)

• Processo FAPESP: 13/23495-5 - Coprodutos do biodiesel e amendoim na alimentação de cordeiros em confinamento
• Beneficiário: Américo Garcia da Silva Sobrinho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/09364-5 - Estimativas de parâmetros populacionais e genéticos e tendências genéticas para características de importância econômica em bovinos Tabapuã
• Beneficiário: Priscila Arrigucci Bernardes
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 12/25250-7 - Características qualitativas da carne de cordeiros alimentados com glicerina proveniente da produção do biodiesel
• Beneficiário: Thiago Henrique Borghi
• Modalidade de apoio: Bolsas no Brasil - Mestrado