Data/hora: 13/06/2024 07:57:38

Provedor de dados: | 45
País: | Brazil
Título: | Live performance, carcass quality, and economic assessment of over 100kg slaughtered pigs
Autores: | Oliveira,E.A.; Bertol,T.M.; Coldebela,A.; Santos Filho,J.I.; Scandolera,A.J.; Warpechowski,M.B.
Data: | 2015-12-01
Ano: | 2015
Palavras-chave: | Carcass grading; Feed restriction; Heavy pigs; Pork production.
Resumo: | Recent genetic improvement has developed pigs with maximum potential for protein deposit at higher weights; however, their optimal slaughter weight still needs to be determined. The objective of the study was to evaluate live performance, carcass traits, and economic viability of 417 Agroceres PIC pigs slaughtered with 100, 115, 130, and 145kg live weight. Pigs were reared in pens with 10-11 barrows and gilts each, offered a feed allowance of 2.8kg/pig/day until the following slaughter weights (SW): 99.65±0.82kg, 118.53±0.98kg, 133.97±1.17kg, and 143.90±1.24. There was no interaction between sex and SW (P&gt;0.05). Backfat thickness, fat area, and loin eye area linearly increased with SW (P&lt;0.001; R2: 70.12-77.44%), and carcass yield increased in a quadratic manner (P&lt;0.001; R²=24.66%). Lean yield was not affected (P&gt;0.05), and feed conversion ratio (R²=43.29%) linearly worsened with SW (P&lt;0.001), but the effect of SW on live production cost (R$/kg) was quadratic, with the minimum point at 134.8kg. It was concluded that, under the applied management, increasing SW results in larger amount of lean tissue with no change in its yield and little effect on growth performance.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000601743
Editor: | Universidade Federal de Minas Gerais, Escola de Veterinária
Relação: | 10.1590/1678-4162-7632
Formato: | text/html
Fonte: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.67 n.6 2015
Fonte: | info:eu-repo/semantics/openAccess