Molecular methods to evaluate effects of feed additives and nutrients in poultry gut microflora
نویسندگان
چکیده
منابع مشابه
Modulating gastrointestinal Microflora of pigs through nutrition using feed additives
the benefits of feeding pigs with feed additives such as preand probiotics, acidifiers, herbs, enzymes, macroand micronutrients and zootechnical additives include higher daily weight gains, better feed conversion, increased intake of feed by animals as a result of improved palatability, and improvements in health and welfare, as reflected in the lower frequency of diarrhoea and limited mortalit...
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از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
15 صفحه اولEffects of antimicrobial feed additives on gut microbiology and blood parameters of weaned piglets
As a result of antibiotic resistance in human pathogenic bacteria, alternatives for Antibiotic Growth Promoters (AGP) have been developed in recent years. Herbs and botanicals can be seen as such an alternative (WENK, 2003). Essential oils derived from different plants have been tested over the years to identify their effects on animal performance. Essential oil extracts from Oregano, with its ...
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The effects of dietary supplementation of grape seed extract (GSE) and vitamin C on carcass characteristics, gut morphology and ileal microflora in broiler chickens exposed to chronic heat stress were examined. Experimental diets included a control diet (without additive), 3 levels of GSE (150, 300, 450 mg/kg of diet), and vitamin C (300 mg/kg of diet). Each of the five diets was fed to 5 repli...
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There is a wide interest in developing management and feeding strategies to stimulate gut development and health in newly-weaned pigs, in order to improve growth performance while minimizing the use of antibiotics and rather expensive feed ingredients, such as milk products. A better understanding of the mechanisms whereby antibiotics influence animal physiology, as well as appropriate use of d...
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ژورنال
عنوان ژورنال: Revista Brasileira de Zootecnia
سال: 2009
ISSN: 1516-3598
DOI: 10.1590/s1516-35982009001300022