摘要
旨在探究日粮添加甘蔗提取物(SCE)对夏季高温环境下育肥猪生长性能的影响。试验选择120头初始体重为(70±5.0)kg健康的"杜×长×嘉"育肥猪,随机分为2组,每组4个重复,每个重复15头,分别饲喂基础日粮(对照组)和添加SCE的试验日粮(试验组),试验组每周前3 d连续饲喂含1.5%SCE的日粮,后4 d饲喂正常日粮,在夏季高温环境下饲喂4周后结束试验。结果表明:与对照组相比,试验组末重和平均日采食量分别显著增加3.90%和7.88%(P<0.05),平均日增重增加13.79%(P=0.06),血清丙二醛含量显著降低(P<0.05),十二指肠绒毛高度与隐窝深度比值显著提高(P<0.05)。结论:在夏季高温环境下,日粮中添加SCE能提高育肥猪生长性能,改善小肠黏膜上皮形态,降低机体内脂质过氧化水平。
To evaluate the effect of dietary sugar cane extract （SCE） supplementation on growth performance of finishing pigs under ther- mal condition in summer, a total of 120 barrows （Duroc × Landrace × Jiaxing Black）, with an average initial body weight of （70±5.0） kg, were randomly allotted to twodietary treatments with 4 replications of fifteen pigs （barrows） per replicate for 4 weeks under summer-hot con- dition. The diets comprised a normal diet （Control group） and a normal diet supplemented with 1.5% SCE （Treatment group）. SCE-sup- plemented diet was fed on 3 consecutive days per week. Results showed that final body weight, average daily feed intake and average weight gain in treatment group were increased by 3.90% （P〈0. 05）, 7. 88% （P〈0.05） and 13.79% （P=0.06） than that in the control group, respectively. Compared to the control group, dietary supplementation with SCE significantly decreased the serum malondialdehyde content （P〈0. 05）. In addition, the villus height to crypt depth ratio in treatment group was higher than that in the control group （P〈0. 05）. In con- clusion, dietary SCE supplementation could increase growth performance, improve the morphology of small intestinal mucosa and reduce the level of lipid peroxidation in finishing pigs under summer-hot condition.
出处
《畜牧与兽医》
北大核心
2017年第5期30-34,共5页
Animal Husbandry & Veterinary Medicine
基金
国家重点研发计划(2016YFD0500505)
关键词
甘蔗提取物
育肥猪
高温环境
sugar cane extract
finishing pigs
summer-hot condition
