复合微生态制剂在黄羽乌骨仔鸡中的应用研究

摘要

This experiment was conducted on study the effects of compound microecological preparation (CMP)on growth performance,immune function,antioxidation level and intestinal microflora of yellow-feathers black-bones chickens.Three hundred healthy 1-day-old chickens were randomly assigned to 5 dietary treatments (probiotics 1,probiotics 2,probiotics 2 +Chinese herbal medicine +maggot pow-der,Chinese herbal medicine +maggot powder and control group).The results were shown as follows:① CMP increased ADG and F /G significantly,but had no significant effects on ADFI.② Compared with the control group,CMP stimulated the development of organs like thymus,spleen and bursa of fabricius significantly and increased the content of IgG by 46%,the activity of LZMby 69%.③ CMP enhanced the levels of antioxidation by increasing the activity of GSH-PX,CAT and SOD,the effect is more pro-nounced in the liver.④ CMP reduced the intestinal pH distinctly and improved the probiotics proportion of intestinal microflora by 20.2%.%为研究益生菌、中草药和蝇蛆粉作为饲料添加剂对黄羽乌骨仔鸡生长性能、免疫功能、抗氧化水平和盲肠内容物 pH 及定植益生菌数的影响，选取300只健康1日龄仔鸡，随机分为益生菌剂1组、益生菌剂2组、益生菌剂2＋中草药＋蝇蛆粉组、中草药＋蝇蛆粉组和空白组。结果表明：①微生态制剂对平均日采食量无显著影响（P ＞0．05），但能显著增加平均日增质量和降低料质量比（P ＜0．05）。②微生态制剂能显著刺激胸腺、法氏囊和脾脏等免疫器官的生长并且使免疫球蛋白 IgG 的含量和溶菌酶的活性分别提高了46％和69％。③微生态制剂能通过提高血液中谷胱甘肽过氧化物酶（GSH －PX）、过氧化氢酶（CAT）、超氧化物歧化酶（SOD）的活性来显著增强机体抗氧化水平并且肝脏中以上3种酶活性的提高程度更大。④微生态制剂可显著降低肠道 pH 值并且使肠道益生菌的比例增加20．2％。