Age-related carcass composition changes in male broiler chickens
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چکیده
منابع مشابه
The effect of cimaterol and its withdrawal on carcass composition and meat tenderness of broiler chickens.
To examine the effects of cimaterol (CIM) and its withdrawal on meat tenderness and carcass composition, 21-d-old broiler chickens (n = 288) were randomly assigned to one of nine treatments. For Treatments 1 through 6, birds were fed a control diet or a diet containing 1 ppm CIM until slaughter at 35, 42, or 49 d of age. Treatments 7 and 8 consisted of birds fed the CIM diet for 14 d and then w...
متن کاملResponse time of broiler chickens to cimaterol: meat tenderness, muscle composition fiber size, and carcass characteristics.
The response time to cimaterol (CIM), a beta-adrenergic agonist, by broiler chickens for carcass characteristics, muscle composition, muscle fiber size, catheptic enzyme activity, and tenderness was determined. Two trials were conducted in which chickens were fed a control diet (CON) containing 0 ppm of CIM or a diet containing 1 ppm of CIM. Trial 1 consisted of 55, 31-d-old broiler chickens in...
متن کاملStruggling behavior in shackled male and female broiler chickens.
Anecdotal evidence suggests that the struggling behavior of shackled broiler chickens may be positively related to compression of the shank and the probable associated discomfort: birds with large shanks tend to struggle more violently than do those with smaller shanks. Males are generally heavier and have thicker shanks than females. Therefore, we tested the hypothesis that, because the leg ga...
متن کاملAge-Related Effects of Varying Ammonia Concentrations on Hematophysiological Variables in Broiler Chickens
This study examined the response of different aged birds of the same genetic strain exposed to ammonia (NH ) at set concentrations on blood gases, electrolytes and acid-base balance under 3 environmentally controlled conditions. The experiment consisted of a 4×4 factorial with a randomized design. The 16 treatments consisted of 4 levels (0, 25, 50 and 75 ppm) of NH concentrations and 4 differen...
متن کاملHistopathological Changes of Liver, Lung and Kid- Ney in Ascites Syndrome in Broiler Chickens . Skeletal Disorders in Broiler Chickens (ross Breed) Estimation of Age In
s of papers 49 and still be immunogenic. In this study, our aim is to construct a bivalent recombinant ILTV with S1 gene inserted into the TK gene region of ILTV genome, The bivalent recombinant ILTV will express S1 gene and one of the potential application is a bivalent recombinant DNA vaccine for IBV and ILTV. Firstly, TK gene and S1 gene from ILTV and IBV was isolated with PCR or RT-PCR resp...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1992
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas92-104