发酵木薯渣饲料替代部分全价饲料养殖肉鸭的效果研究

为了证实微生物发酵木薯渣饲料替代部分全价饲料对肉鸭养殖效果的影响，为木薯渣饲料产品的研发与应用提供科学依据。选用樱桃谷鸭为试验对象，分别在育雏期和育肥期用发酵木薯渣饲料替代全价饲料进行饲养试验，通过分析肉鸭的生长性能、经济效益及生产环境评价其应用效果。结果表明：在肉鸭育雏期（1~14日龄）分别按1%、3%、5%的比例用发酵木薯渣饲料替代全价饲料进行养殖，发现在饲料中添加1%发酵木薯渣饲料有利于促进雏鸭饲料转化；在育肥期（15~45日龄）以发酵木薯渣饲料替代部分全价饲料对肉鸭生产性能无显著影响。其经济效益分析：发现各组盈利排序为：处理4＞处理3＞处理2＞处理1(CK)。在肉鸭养殖环境方面，发现发酵木薯渣饲料替代部分全价饲料有利于降低养殖场环境H2S、NH3浓度，且添加比例越高效果越明显。可见，微生物发酵木薯渣饲料替代全价饲料进行肉鸭养殖可以改善养殖环境、降低养殖成本、提高成活率和经济效益。

Effects of Fermented Cassava Residue Feed Replacing Complete Feed on Meat-duck Breeding

The effects of microbial fermented cassava residue feed replacing complete feed on breeding meat- duck were studied in order to provide scientific references for developing and applying products of cassava residue feed. Different proportion of fermented cassava residue feed was fed to Cherry Valley ducks during brood time（1-14 days old, duckling feed）, and fattening period （15-45days old, adult feed） in present experiment, respectively. The growth performance, economic benefits and production environment of ducks were analyzed to evaluate effects of fermented cassava residue feed. The results showed that during meat-duck brood time （1-14 days old）, 1% of fermented cassava residue feed was more favorable for feed transformation of duckling than 3% and 5%. While in fattening period （15-45 days old）, partial complete feed replaced with fermented cassava residue feed had no significant effects on production performance of meat-duck. Comparing the economic benefits of meat-duck breeding in different treatments, it showed that the economic benefits of treatment 4 （duckling feed compounded with 221A and 5% of fermented cassava residue feed, adult duck feed compounded with JK519 and 15% of fermented cassava residue feed） was the highest, then followed by treatment 3（duckling feed compounded with 221A and 3% of fermented cassava residue feed, adult duck feed compounded with JK519 and 12% of fermented cassava residue feed）, treatment 2 （duckling feed compounded with 221A and 1% of fermented cassava residue feed, adult duck feed compounded with JK519 and 6% of fermented cassava residue feed） and treatment 1 （CK, duckling feed 221A＋adult duck feed JK519）. Concerning on meat-duck breeding environment, it was found that replacing complete feed with fermented cassava residue feed was more beneficial for reducing the concentration of H2S and NH3 in farm, and higher proportion of fermented cassava residue feed had more obvious effects on it. Therefore, it could be concluded that replacing complete feed with fermented cassava residue feed was conducive for improving breeding environment, reducing breeding costs, increasing survival rate and economic benefits.