摘要
[目的]研究淀粉酶生产发酵培养基经压滤提取淀粉酶液后形成的酶渣饼,能否作为杜长大保育商品猪饲料原料。[方法]试验选取60头11.5 kg左右的杜长大商品保育猪,公母各半,空腹称重后随机分为3组,每组1个重复,每个重复10头,分别饲喂发酵培养基剩余物试验料1、麦麸试验料2及全价颗粒配合饲料,试验时间为30 d。[结果]对照组的日增重明显高于2组试验组,且差异显著;试验料1日增重略高于试验料2,但差异不显著。在腹泻率、料肉比上,对照组优于试验料1,试验料1优于试验料2。[结论]在生猪饲养过程中,使用淀粉酶生产发酵培养基经压滤提取淀粉酶液后形成的酶渣饼,作为一种饲料原料替代麦麸用于生猪保育猪饲料可提高保育猪日增重,同时对改善腹泻、降低料肉比、减少饲料成本也具有积极作用。
[Objectives]To study whether the enzyme residue cake formed by the extraction of the amylase solution from the amylase production fermentation medium by pressure filtration can be used as the feed material for Duroc commercial nursery pigs.[Methods]In the experiment,60 Duroc commercial nursery pigs of about 11.5 kg half male and female,were randomly divided into 3 groups after weighing on an empty stomach,1 replicate in each group and 10 pigs in each replicate,the experiment lasted 30days,and were fed the fermentation medium residue test material 1,the wheat bran test material 2 and the full price pellet compound feed respectively,and the experiment lasted 30 days.[Results]The weight gain of the control group was significantly higher than that of the two groups,and the difference was significant.The daily weight gain of the test material 1 was slightly higher than that of the test material2,but the difference was not significant.In terms of diarrhea rate and feed-to-meat ratio,the control group was better than the test material 1,and the test material 1 was better than the test material 2.[Conclusions]In the process of pig feeding,the use of the enzyme residue cake formed by the extraction of the amylase solution from the amylase production fermentation medium by pressure filtration,as a feed material to replace wheat bran for pig nursery pig feed can increase the daily weight gain of nursery pigs,improve diarrhea,reduce feed-to-meat ratio,and reduce feed cost.
作者
邓运江
秦茂
秦世新
姚华清
DENG Yunjiang;QIN Mao;QIN Shixin;YAO Huaqing(Animal Husbandry and Fisheries Affairs Center of Xiangxi Autonomous Prefecture,Jishou 416000,China;Animal Husbandry and Aquaculture Affairs Center of Longshan County,Longshan 416800,China)
出处
《养殖与饲料》
2022年第12期38-41,共4页
Animals Breeding and Feed
