特殊食品用脂肪粉对断奶仔猪生长性能、养分消化率和肠道菌群的影响  

Effects of Special Food-grade Fat Powder on Growth Performance,Nutrient Digestibility and Intestinal Flora of Weaned Piglets

作　　者：王宇欣 WANG Yuxin(Sichuan Rongtong Agricultural Development and Animal Husbandry(Chongzhou)Co.,Ltd.,Chongzhou 611200,Sichuan China)

机构地区：[1]四川融通农发牧原(崇州)有限责任公司,四川崇州611200

出　　处：《饲料博览》2023年第4期1-6,13,共7页Feed Review

摘　　要：试验旨在研究特殊食品用脂肪粉对断奶仔猪生长性能、养分消化率和肠道菌群的影响,选取同批次23日龄左右健康“杜×长×大”三元杂交断奶仔猪360头,按照体重、日龄等相近原则分为4组(对照组和试验Ⅰ~Ⅲ组),每组6个重复,每个重复15头仔猪。对照组饲喂基础日粮,试验组用5%、10%和15%的特殊食品用脂肪粉等能等氮替代相应比例的原料。结果表明:与对照组比,试验组仔猪的试验末重、日均增重和日均采食量显著提高(P<0.05),腹泻率显著降低(P<0.05),料重比均有所降低,但差异不显著(P>0.05),试验组日粮干物质、粗脂肪、粗蛋白、钙和磷的消化率均显著高于对照组(P<0.05),所有肠段中,乳酸杆菌数量显著提高(P<0.05),大肠杆菌数显著性降低(P<0.05)。结果提示:断奶仔猪日粮中添加特殊食品用脂肪粉可明显提高断奶仔猪生产性能和养分消化率,促进肠道菌群稳定,明显降低腹泻率。The experiment aimed to investigate the effects of special food-grade fat powder on the growth performance,nutrient digestibility and intestinal flora of weaned piglets.A total of 360 healthy"duroc-landraceyorkshire"three-way crossbred weaned piglets at around 23 days of the age were selected and divided into four groups(control group and trial groupsⅠ-Ⅲ)based on similar body weight and age,each with six replicates of 15 piglets.The control group was fed basic diet,the trial groups were added 5%,10%and 15%special food-grade fat power with energy and amino equal to diet.The results showed that compared with the control group,the final weight,average daily gain,and average daily feed intake of the piglets in the trial groups were significantly increased(P<0.05),while the diarrhea rate was significantly decreased(P<0.05).The feed-to-gain ratio was slightly reduced,but the difference was not significant(P>0.05).The digestibility of dry matter,crude fat,crude protein,calcium and phosphorus in the diets of the trial groups were significantly higher than those of the control group(P<0.05).The number of Lactobacillus were significantly increased(P<0.05)and the number of E.coli were significantly reduced(P<0.05)in all the intestinal segments in the trial groups(P<0.05).The results indicated that the addition of special food-grade fat powder to the diet of weaned piglets could improve their growth performances and nutrient digestibilities,promote the stability of the intestinal flora,and reduce the incidence of diarrhea significantly.

关 键 词：特殊食品用脂肪粉 断奶仔猪 生产性能 养分消化率 肠道菌群 

分 类 号：S816.4[农业科学—饲料科学]