Efeito da Duração do Período de Jejum Pré-Abate Sobre Rendimento de Carcaça e a Qualidade da Carne do Peito de Frangos de Corte
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Data
2002-05-01
Autores
Denadai, JC [UNESP]
Mendes, AA [UNESP]
Garcia, RG [UNESP]
Almeida, ICL [UNESP]
Moreira, J [UNESP]
Takita, TS [UNESP]
Pavan, AC [UNESP]
Garcia, Edivaldo Antonio [UNESP]
Título da Revista
ISSN da Revista
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Editor
Fundação APINCO de Ciência e Tecnologia Avícolas
Resumo
O objetivo de estudo foi o de avaliar o efeito do jejum de ração e água antes do abate sobre o rendimento de carcaça e cortes, perda de peso vivo, conteúdo do papo, intestino e moela, matéria seca das fezes, bem como volume globular médio e proteína total plasmática do soro. Foram utilizados 600 pintos machos da linhagem Ross, criados até 42 dias de idade, quando foram submetidos a três períodos de jejum (zero, quatro ou oito horas). A duração do período de jejum afetou (p<0,05) a perda de peso vivo, o rendimento de carcaça, carne de pernas, pés, conteúdo do papo e intestino. Aumentando-se o período de jejum até 4 horas, aumentou-se a perda de peso vivo e o rendimento de carcaça e patas, mas diminuiu-se o rendimento de pernas e o conteúdo do papo e do intestino. Não houve efeito (p>0,05) do período de jejum sobre as demais variáveis estudadas.
The objective of this estudy was to evaluate the effect of feed and water withdrawal on carcass yield and parts, body weight loss, content of crop, gizzard and intestine, dry matter content of faeces and breast meat quality, as well as plasma total protein and packed cell volume. Six hundred day-old Ross chicks were reared until 42 days of age when they were submited to one of three feed withdrawal period (0, 4 or 8 hours). Feed withdrawal period affected (p< 0.05) body weight loss, carcass yield, percentage of leg meat and feet, and crop and intestine content. Increasing withdrawal period until 4 hours increased body weight loss, carcass yield and feet percentage, but leg meat and content of crop and intestine decreased. There was no effect (p>0.05) of feed withdrawal period on the other variables evaluated.
The objective of this estudy was to evaluate the effect of feed and water withdrawal on carcass yield and parts, body weight loss, content of crop, gizzard and intestine, dry matter content of faeces and breast meat quality, as well as plasma total protein and packed cell volume. Six hundred day-old Ross chicks were reared until 42 days of age when they were submited to one of three feed withdrawal period (0, 4 or 8 hours). Feed withdrawal period affected (p< 0.05) body weight loss, carcass yield, percentage of leg meat and feet, and crop and intestine content. Increasing withdrawal period until 4 hours increased body weight loss, carcass yield and feet percentage, but leg meat and content of crop and intestine decreased. There was no effect (p>0.05) of feed withdrawal period on the other variables evaluated.
Descrição
Palavras-chave
carcaça, jejum, maciez, peito, pH, breast, carcass, feed and water withdrawal, ph, tenderness
Como citar
Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 4, n. 2, p. 101-109, 2002.