کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1971945 1538998 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Broiler chicken adipose tissue dynamics during the first two weeks post-hatch
ترجمه فارسی عنوان
در طی دو هفته اول پس از خروج از بافت چربی مرغ جوجههای گوشتی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
Selection of broiler chickens for growth has led to increased adipose tissue accretion. To investigate the post-hatch development of adipose tissue, the abdominal, clavicular, and subcutaneous adipose tissue depots were collected from broiler chicks at 4 and 14 days post-hatch. As a percent of body weight, abdominal fat increased (P < 0.001) with age. At day 4, clavicular and subcutaneous fat depots were heavier (P < 0.003) than abdominal fat whereas at day 14, abdominal and clavicular weighed more (P < 0.003) than subcutaneous fat. Adipocyte area and diameter were greater in clavicular and subcutaneous than abdominal fat at 4 and 14 days post-hatch (P < 0.001). Glycerol-3-phosphate dehydrogenase (G3PDH) activity increased (P < 0.001) in all depots from day 4 to 14, and at both ages was greatest in subcutaneous, intermediate in clavicular, and lowest in abdominal fat (P < 0.05). In clavicular fat, peroxisome proliferator-activated receptor-γ (PPARγ), CCAAT/enhancer binding protein (CEBP)α, CEBPβ, fatty acid synthase (FASN), fatty acid binding protein 4 (FABP4), lipoprotein lipase (LPL), neuropeptide Y (NPY), and NPY receptor 5 (NPYR5) mRNA increased and NPYR2 mRNA decreased from day 4 to 14 (P < 0.001). Thus, there are site-specific differences in broiler chick adipose development, with larger adipocytes and greater G3PDH activity in subcutaneous fat at day 4, more rapid growth of abdominal fat, and clavicular fat intermediate for most traits. Adipose tissue expansion was accompanied by changes in gene expression of adipose-associated factors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology - Volume 189, November 2015, Pages 115-123
نویسندگان
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