发酵饲料工艺优化-华侨大学学报自然科学版.DOCVIP

阿魏酸酯酶酶化发酵饲料对肉鸡养分利用率的影响 王林林，陈培钦李夏兰 (华侨大学化工学院，福建 厦门 361021) 摘要：为了降低饲料中抗营养因子，提高饲料转化率，研究阿魏酸酯酶酶化发酵饲料的制备，并该酶化发酵饲料对肉鸡养分利用率的影响。通过正交得到饲料较优配方：菌柄干物质12%、玉米蛋白饲料26%棕榈仁粕11%谷壳粉为16%瓜尔豆粕5%玉米粉5%糖蜜3‰益生剂1‰发酵饲料中粗蛋白含量为22.48%；相对于基础日粮，酶化发酵饲料对肉鸡的干物质粗灰分粗蛋白中性洗涤纤维酸性洗涤纤维酸性洗涤木质素利用率分别提高5.59 %38.31%、10.36%、16.52 %、29.25%、18.99%，且肉鸡对酶化发酵饲料养分利用率普通发酵饲料高。 关键词： 阿魏酸酯酶；发酵饲料；抗营养因子；养分利用率 中图分类号：Q 55 文献标志码：A Preparation of ferulic acid esterase enzymatic ferment feed and its impact on the nutrient utilization of broilers WANG Lin-lin, CHEN Yun-hua,CHEN Pei-qin, LI Xia-lan (College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China) Abstract： In order to reduce the antinutritional factors existed in feed, promote feed conversion ratio, ferulic acid esterase enzymatic fermented feed was studied and the effect of this enzymic fermented feed on nutrient utilization of broilers was researched at the same time.The optimum feed formula obtained by orthogonal experiments:12% stipe dry matter,26% corn gluten feed,11% palm kernel meal,16% chaff powder,5% guar soybean meal,5% corn flour,3‰ molasses,1‰ prebiotic agent,the content of crude protein in this fermented feed was 22.48% under this condition.Compared with basal diet, enzymatic fermented feed increased feed nutrient utilization such as dry matter, crude ash,crude protein, neutral detergent fiber, acid detergent fiber, acid detergent lignin utilization by 5.59%,38.31%,10.36%,16.52%,29.25%,18.99%,respectively.And the feed nutrient utilization of broilers raised by enzymatic fermented feed was higher than those raised by common fermented feed. Key Words： Feruloyl esterases; Fermented feed;antinutritional factors ;nutrient utilization 在家禽饲养上，玉米主要的能量饲料，随着我国养禽业规模迅速发展，对饲料原料的需求日益递增，这就促使人们将农业的废弃物，如麦糟，苹果渣，菌糠做为玉米的替代品。但当这类饲料原料在家禽日粮中含量过多时，往往会造成饲料利用率差、家禽生长不良以及环境污染等问题，限制了这类饲料原料在家禽日粮中的广泛应用[1]。这主要与木质纤维原料抗营养因子非淀粉多糖（non-starch polysaccharides，简称NSP）有关[2]。NSP增加消化道食糜粘性影响消化道生理及形态，影响肠道菌群，从而阻碍营养物质消化吸收，降低饲料的转化率[3]。降解饲料中NSP的方法很多，木质纤维原料。发酵饲料可提高饲料的