摘要
本试验旨在研究饲粮中添加植物精油对断奶仔猪生长性能、血清生化指标以及养分表观消化率的影响。选取48头体况良好、体重相近的28日龄断奶大白仔猪,随机分为2组,每组3个重复,每个重复8头猪,分别饲喂基础饲粮和在基础饲粮中添加250 mg/kg植物精油的试验饲粮。试验期28 d。结果表明:1)与对照组相比,饲粮中添加植物精油能够显著提高仔猪平均日增重(P<0.05),显著降低料重比(P<0.05)。2)与对照组相比,饲粮中添加植物精油可显著提高粗蛋白质、钙、磷表观消化率(P<0.05)。3)与对照组相比,饲粮中添加植物精油降低了血清中胆囊收缩素、瘦素、胰高血糖素样肽-1的含量,提高了血清中胃饥饿素含量,但均未达到显著水平(P>0.05)。综上所述,饲粮中添加植物精油显著提高了动物的生长性能,促进了断奶仔猪对营养物质的消化吸收。
This study was conducted to study the effects of plant essential oils on the growth performance,serum biochemical indexes and nutrient apparent digestibility of weaning piglets. Forty-eight weaning white piglets at 28 days of age with good condition and similar weight were randomly divided into 2 groups with 3 replicates per group and 8 piglets per replicate. Piglets in the control group were fed a basal diet,and the others in the experimental group were fed the basal diet supplemented with 250 mg/kg plant essential oils. The trial lasted for28 days. The results showed as follows: 1) compared with the control group,dietary plant essential oils significantly increased average daily gain of piglets (P<0.05),and significantly decreased feed/gain (P<0.05). 2)Compared with the control group,dietary plant essential oils significantly increased nutrient apparent digestibilities of crude protein,phosphorus,calcium (P<0.05). 3) Compared with the control group,dietary plant essential oils decreased the serum contents of cholecystokinin,leptin,glucagon-like peptide-1 (P > 0. 05),and increased the serum content of ghrelin (P>0.05). All over,dietary plant essential oils can effectively increase growth performance and promote nutrient digestibility.
引文
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