大豆磷脂油有效能值评定及其在仔猪饲粮中的应用效果

发布时间：2019-03-11 16:31

【摘要】：本研究包括2个试验,试验1旨在评定大豆磷脂油的有效能值;试验2旨在研究大豆磷脂油对断奶仔猪生长性能、血清脂质代谢及直肠微生物数量的影响。试验1(代谢试验):选用16头平均体重(27.54±1.20)kg的"杜×长×大"去势公猪,随机分为2个组,每个组8个重复,每个重复1头猪,分别饲喂基础饲粮和4%大豆磷脂油替换基础饲粮的试验饲粮,预试期5d,正试期4 d。试验2(饲养试验):选用54头23日龄断奶、初始体重(6.50±0.48)kg"杜×长×大"仔猪,按体重相近原则随机分为3个组,每个组6个重复,每个重复3头猪,分别饲喂基础饲粮(含2%大豆油,对照组)、1.0%磷脂油饲粮(大豆磷脂油等量替代基础饲粮中50%大豆油,即含1.0%大豆油+1.0%磷脂油)和1.5%磷脂油饲粮(大豆磷脂油等能替代基础饲粮中50%大豆油,即含1.0%大豆油+1.5%磷脂油),试验期35 d。代谢试验结果表明:大豆磷脂油的表观消化能为31.32 MJ/kg,表观代谢能为30.07 MJ/kg。饲养试验结果表明,与对照组相比:1)第15~35天,1.0%、1.5%磷脂油饲粮组仔猪平均日采食量(ADFI)分别提高了6.23%和3.13%(P0.05),平均日增重(ADG)分别提高了6.66%和5.28%(P0.05);第1~35天,1.0%磷脂油饲粮组仔猪ADFI和ADG分别提高了5.34%和5.64%(P0.05)。2)1.0%磷脂油饲粮组仔猪腹泻率和腹泻指数分别降低了5.81%和13.41%(P0.05)。3)1.0%磷脂油饲粮组仔猪血清甘油三酯和游离脂肪酸的含量分别降低了10.91%和12.80%(P0.05);1.5%磷脂油饲粮组血清甘油三酯、总胆固醇和高密度脂蛋白胆固醇含量分别降低了7.27%、5.33%和10.53%(P0.05)。4)第15天,1.0%和1.5%磷脂油饲粮组仔猪直肠粪便大肠杆菌数量分别降低了4.88%和4.12%(P0.05);第36天,1.0%磷脂油饲粮组仔猪直肠粪便大肠杆菌数量降低了4.88%(P0.05)。综上可见,大豆磷脂油的表观消化能为31.32 MJ/kg,表观代谢能为30.07 MJ/kg;饲粮添加1.0%大豆磷脂油等量替代基础饲粮中的大豆油,可一定程度提高仔猪ADFI和ADG,降低腹泻率和直肠粪便大肠杆菌数量。
[Abstract]:The purpose of this study was to evaluate the effective energy of soybean phospholipid oil and to study the effects of soybean phospholipid oil on growth performance, serum lipid metabolism and rectal microbial count in weanling piglets. Trial 1 (Metabolic test): sixteen castrated pigs with a mean body weight of (27.54 卤1.20) kg were randomly divided into two groups, each with 8 replicas and 1 pig per repeat. Experimental diets fed with basic diet and 4% soybean phosphatide oil replacement basal diet, respectively, for 5 days in pre-test period and 4 d in positive trial period Trial 2 (feeding experiment): 54 weaned piglets of 23-day-old with initial weight of (6.50 卤0.48) kg "du 脳 long 脳 Big" piglets were randomly divided into three groups according to the principle of similar body weight, each group had 6 replicates, 3 pigs per repeat, and 3 pigs in each group were randomly divided into three groups according to the principle of similarity in body weight. They were fed basic diet (containing 2% soybean oil, control group) and 1.0% phosphate fat diet (soybean phosphatide oil equivalent to 50% soybean oil in basal diet). The diets containing 1.0% soybean oil (1.0% phosphatide oil) and 1.5% phosphatide oil (soybean phosphatide oil, etc.) can replace 50% soybean oil in basic diet, i.e. 1.5% phosphatide oil containing 1.0% soybean oil. The experiment period was 35 d. The results of metabolic test showed that the apparent digestibility energy of soybean phospholipid oil was 31.32 MJ/kg, and the apparent metabolic energy of soybean phospholipid oil was 30.07 MJ/kg.. The results of feeding experiment showed that: 1) the average daily intake (ADFI) of piglets fed 15-35 days, 1.0%, 1.5% phosphate fat diet increased by 6.23% and 3.13% (P0.05), respectively, compared with the control group, the average daily intake of piglets was increased by 6.23% and 3.13% (P0.05), respectively. The average daily gain (ADG) increased by 6.66% and 5.28% respectively (P0.05). From day 1 to day 35, ADFI and ADG were increased by 5.34% and 5.64% (P0.05) in 1.0% phosphatide oil diet, respectively, and diarrhea rate and diarrhea index were decreased by 5.81% and 13.41% in 1.0% phosphatide oil diet, respectively. (3) the content of serum triglyceride and free fatty acid were decreased by 10.91% and 12.80% in 1.0% phosphate fat diet group (P0.05), and the content of triglyceride and free fatty acid in serum decreased by 10.91% and 12.80% (P0.05) respectively. The contents of serum triglyceride, total cholesterol and high density lipoprotein cholesterol decreased by 7.27%, 5.33% and 10.53% (P0.05) on day 15 in 1.5% phospholipid oil diet, respectively. The number of Escherichia coli in rectal feces decreased by 4.88% and 4.12% in 1.0% and 1.5% P-fat diets, respectively (P0.05). On the 36th day, the number of Escherichia coli in rectum of piglets fed 1.0% phosphate fat diet decreased by 4.88% (P0.05). The apparent digestibility energy of soybean phospholipid oil was 31.32 MJ/kg, and the apparent metabolic energy was 30.07 MJ/kg;. The addition of 1.0% soybean phosphatide oil could increase the ADFI and ADG, of piglets and decrease the diarrhea rate and the quantity of Escherichia coli in rectal feces to a certain extent by replacing soybean oil with 1.0% soybean phosphatide oil in basal diet to a certain extent.
【作者单位】：四川农业大学动物营养研究所动物抗病营养教育部重点实验室;
【基金】：四川省科技支撑计划项目(2013NZ0056) 广州倚德生物科技有限公司合作项目
【分类号】：S828.5

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