Performance, carcass yield, and qualitative characteristics of breast and leg muscles of broilers fed diets supplemented with vitamin E at different ages
2007
Leonel, FR(Unesp FCAV) | Oba, A(Unesp FCAV) | Pelicano, ERL(Unesp FCAV) | Zeola, NMBL(Unesp FCAV) | Boiago, MM(Unesp FCAV) | Scatolini, AM(Unesp FCAV) | Lima, TMA(Unesp FCAV) | Souza, PA(Unesp FCAV) | Souza, HBA(Unesp FCAV Technology Department)
The effects of vitamin E supplementation (300 mg/kg diet) in the diet of broiler chickens for different periods during rearing on the performance and qualitative traits of breast and leg muscles were evaluated. Seven hundred and twenty day-old chicks were distributed into six treatments: basal diet (25 mg vitamin E/kg diet), and diet supplemented with vitamin E from 1 to 15, 1 to 30, 1 to 45, 14 to 45 and 30 to 45 days of age. Vitamin E content, lipid percentage, TBARS (0 and 3 days of storage), color (*L, *a, *b), and pH were evaluated. There were no differences (p>0.05) among treatments in performance, carcass yield, and cut yields. Qualitative parameters (pH and color) presented no differences, although vitamin E positively affected TBARS values at 3 days of storage, mainly in leg muscles. Vitamin E levels in both muscles were higher in the birds supplemented throughout the experiment.
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