Fiber Types in Skeletal Muscles of Broiler- and Layer-Type Chickens
نویسندگان
چکیده
منابع مشابه
Fiber types in mammalian skeletal muscles.
Mammalian skeletal muscle comprises different fiber types, whose identity is first established during embryonic development by intrinsic myogenic control mechanisms and is later modulated by neural and hormonal factors. The relative proportion of the different fiber types varies strikingly between species, and in humans shows significant variability between individuals. Myosin heavy chain isofo...
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In commercial poultry husbandry, alternatives for the use of antibiotics and vaccines are under investigation, which preferably have to be applicable for both layer- and broiler-type chickens. There are indications that the defense mechanisms vary between layer- and broiler-type chickens. Therefore, the difference in immune response between layer- and broiler-type chickens of the same age was i...
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Background: Broilers lung mechanisms that regulate endothelin (ET) in the lung are complex and poorly understood. Objectives: Methods: In this experiment lung ET-1 mRNA levels and lung mRNA expression for the ET(A) receptors were determined in lung tissue weekly (term = 42 days, intervals = 7 days). Serum endothelin concentration was also measured at these ages. Results: The study showed that e...
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Objective(s): Previous studies showed that skeletal muscle microcirculation was reduced in chronic heart failure. The aim of this study was to investigate the effects of endurance training on capillary and arteriolar density of fast and slow twitch muscles in rats with chronic heart failure. Materials and Methods: Four weeks after surgeries (left anterior descending (LAD) artery occlusion), chr...
متن کاملPrenatal Dynamic of Development of Skeletal Musculature of Broiler and Layer Chickens
Results of examinations of the prenatal dynamic of development of skeletal musculature of chicken have been presented in this paper. Eggs of two types of chicken hybrids were incubated – broiler (Ross 308) and layer (Hy-Line Brown). Samples were taken in determined intervals. For the analyses of samples, light and scanning electron microscopy were used. Morphological characteristics of skeletal...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1979
ISSN: 0032-5791
DOI: 10.3382/ps.0581210