پديد آورنده :
رسولي، الهام
عنوان :
تاثير ايزوفلاونوئيد جنيستئين بر عملكرد، سلامت دستگاه گوارش و پاسخ هاي ايمونولوژيك جوجه هاي گوشتي
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي
صفحه شمار :
دوازده،114ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
رحمان جهانيان، محمد علي ادريس
استاد مشاور :
مهدي محمدعلي پور
توصيفگر ها :
اندام لنفي , ايمني سلولي و هومورال , پايداري اكسيداتيولاشه , مورفولوژي روده , قابليت هضم ايلئومي
تاريخ نمايه سازي :
11/12/89
استاد داور :
عبدالحسين سميع، امير مساح
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Abstract The present study aimed to investigate the effect of supplementary soy isoflavone genistein on performance jejunal morphology and immunological responses of broiler chicks A total of 675 day old male broiler chicks Ross 308 were randomly assigned to five replicate pens 15 chicks each of each of nine experimental diets Dietary treatments were included a negative not supplemented control diet two positive controls virginiamycin or zinc bacitracin and diets containing 10 20 40 80 160 or 320 mg kg genistein At d 28 of age two randomly selected chicks from each pen were slaughtered to evaluate lymphoid organ weights and alterations of jejunal epithelial cells Also two birds per pen were euthanized on the final day 42 d to measure carcass characteristics The results showed that antibiotic supplemented diets and dietary levels of 20 80 mg kg soy isoflavone ISF caused significant increases in feed intake during starter grower P 0 05 and overall P 0 01 experimental periods Furthermore daily weight gain was influenced P 0 05 by dietary treatments throughout the trial Although the relative weights of pancreas heart and thigh meat were not affected diets fortified by either antibiotic or levels of 20 or 40 mg ISF kg resulted in improvements of breast P 0 05 and carcass P 0 01 yields The birds fed on ISF supplemented diets had bursa of Fabricius P 0 05 and thymus P 0 01 with more relative weights Similarly 10 d assessed cutaneous hypersensivity to phytohemagglutinin P injection and antibody titer against Newcastle disease virus were markedly higher in ISF chicks than other experimental groups In addition inclusion of soy isoflavone increased P 0 05 peripheral lymphocytes and subsequently lowered P 0 01 heterophil to lymphocyte ratio The lowest plasma triglycerides P 0 01 cholesterol and LDL P 0 05 were assigned to the groups fed on ISF diets Also dietary genistein resulted in a considerable decline in liver cholesterol P 0 05 and breast thigh meat malondialdehyde P 0 01 Interestingly antibiotic diets increased jejunal villus height and decreased crypt depth The results on ileal digestibility showed that dietary antibiotic or ISF particularly the levels of 20 to 80 mg kg supplementation caused the best digestibility coefficients for crude protein and fat From the present findings it can be concluded that low to medium levels of dietary genistein supplementation could beneficially affect performance and immune measurements and also increase the carcass oxidative stability One could achieve the optimum performance and immunological responses by dietary supplementation of 20 80 mg kg isoflavone genistein Keywords Broiler Chick Lymphoid Organ Cellular and Humoral Immunity Carcass Oxidative Stability Jejunal Morphology Ileal Nutrient Digestibility
استاد راهنما :
رحمان جهانيان، محمد علي ادريس
استاد مشاور :
مهدي محمدعلي پور
استاد داور :
عبدالحسين سميع، امير مساح
