大豆水解蛋白对断奶仔猪生产性能和营养物质利用率的影响  

Effects of Dietary Supplementation of Soybean Protein Hydrolysate on Production Performance and Nutrients Utilization Rate in Weaned Piglets

作　　者：刘卫东 程璞 王章存 黄丽鸽 王清月 程鸿星 张梦迪 张小丽 翟晶晶 LIU Wei-dong;CHENG Pu;WANG Zhang-cun;HUANG Li-ge;WANG Qing-yue;CHENG Hong-xing;ZHANG Meng-di;ZHANG Xiao-li;ZHAI Jing-jing(College of Animal Science and Technology,Henan University of Animal Husbandry and Economy,Zhengzhou 450046,China;Henan Province Key Laboratory of Unconventional Feed Resources Innovation and Utilization,Zhengzhou 450046,China;College of Food and Bioengineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China)

机构地区：[1]河南牧业经济学院动物科技学院,河南郑州450046 [2]河南省非常规饲料资源创新利用重点实验室,河南郑州450046 [3]郑州轻工业大学食品与生物工程学院,河南郑州450002

出　　处：《畜牧与饲料科学》2020年第3期1-5,共5页Animal Husbandry and Feed Science

基　　金：国家自然科学基金项目(31671782);河南省科技攻关项目(172102310631)。

摘　　要：为了准确掌握大豆水解蛋白在断奶仔猪饲料中的适宜添加量和添加时期,选择健康、体重相近的杜长大三元杂交仔猪48头(14日龄,刚断奶,公、母各半),将仔猪随机分为Ⅰ组、Ⅱ组、Ⅲ组3个组,其中,Ⅰ组作为对照组,饲料中不添加大豆水解蛋白;Ⅱ、Ⅲ组分别在饲料中添加3.0%和4.0%的大豆水解蛋白。预试期7 d,正试期28 d。结果表明,在试验的前3周,Ⅱ、Ⅲ组仔猪每周的平均体重和平均日增重都显著(P<0.05)高于对照组;在试验的第1周,Ⅱ、Ⅲ组的平均日采食量显著(P<0.05)高于对照组;在试验的前2周,Ⅱ、Ⅲ组的料重比显著(P<0.05)低于对照组;前3周,Ⅱ、Ⅲ组每周的腹泻率都较对照组显著(P<0.05)降低;整个试验期内,Ⅱ、Ⅲ组干物质和粗蛋白的利用率显著(P<0.05)高于对照组。综上所述,大豆水解蛋白能有效改善断奶仔猪的生产性能和营养物质的利用率,适宜添加量为3.0%,适宜添加阶段为15~42日龄。The objective of this study was to accurately determine the appropriate amount and period of adding soybean protein hydrolysate in the diet of weaned piglets.A total of 48(half male and half female)14-day-old,healthy and just weaned three-way crossbred piglets(Duroc×Landrace×Yorkshire)with similar weight were selected in this study.The experimental piglets were randomly assigned into the following three groups:groupⅠwas served as a control,in which no dietary supplementation of soybean protein hydrolysate was made;groupⅡand groupⅢwere used as experimental groups,in which 3.0%and 4.0%of soybean protein hydrolysate were supplemented in the basal diet,respectively.The pretrial period was 7 days,and the formal trial period lasted for 28 days.The results showed that in the first three weeks of the experiment,the average week weight and average daily gain of piglets in groupⅡand groupⅢwere significantly(P<0.05)higher than those in groupⅠ;in the first week of the experiment,the average daily feed intake of groupⅡand groupⅢwas significantly(P<0.05)higher than that in groupⅠ;in the first two weeks of the experiment,groupⅡand groupⅢhad significantly(P<0.05)lower feed to gain ratio compared with groupⅠ;in the first three weeks of the experiment,groupⅡand groupⅢhad significantly(P<0.05)lower diarrhea rate in each week than groupⅠ;significantly(P<0.05)better performance in utilizations of dietary dry matter and crude protein were observed in groupⅡand groupⅢcompared to groupⅠ.The combined data suggest that the dietary supplementation of soybean protein hydrolysate can effectively improve the production performance and the utilization rate of nutrients in weaned piglets.The 3.0%of soybean protein hydrolysate is recommended to be supplemented in basal diet of weaned piglets from 15 to 42 days of age.

关 键 词：大豆水解蛋白 断奶仔猪 生产性能 营养物质 利用率 

分 类 号：S828.5[农业科学—畜牧学]