摘要
本试验旨在研究植物乳杆菌和干酪乳杆菌对仔猪生长性能、器官指数及小肠形态的影响。选取15窝7日龄大×长仔猪,随机分为3组,每组5个重复,每个重复1窝仔猪（8～10头）。各组分别灌喂去离子水（对照组）、植物乳杆菌菌液和干酪乳杆菌菌液,试验从7日龄开始至35日龄结束,于21（断奶）、24和35日龄屠宰仔猪采样。结果表明,与对照组相比,植物乳杆菌和干酪乳杆菌能显著提高断奶后仔猪平均日采食量和平均日增重（P〈0.05）,显著降低料重比（P〈0.05）,但对断奶前仔猪平均日增重、平均日采食量和料重比无显著影响（P〉0.05）;显著提高35日龄仔猪脾脏指数和胸腺指数（P〈0.05）,但对胃指数和大肠器指数无显著影响（P〉0.05）;促进了断奶后仔猪空肠和回肠绒毛发育。由此可见,试验菌株表现了一定的促进仔猪生长、抗腹泻功能,但还需进行体内外机制研究及大量重复性试验才能对菌株的益生特性做出客观、全面评价。
The experiment was conducted to study the effects of Lactobacillus plantarum and Lactobacillus casei on growth performance,organ index and intestinal morphology of piglets. A total of 15 litters piglets（ Yorkshire× Landrace） at age of 7 days were randomly assigned to 3 groups with 5 replicates per group and 1 litter（ 8 to 10piglets） per replicate,including the control group orally administrated with distilled water,Lactobacillus plantarum group orally administrated with Lactobacillus plantarum and Lactobacillus casei orally administrated with Lactobacillus casei. The experiment started at day 7 and ended at day 35 after birth. The piglets were slaughtered on day 21,24 and 35 after birth for sampling. The results showed that compared with the control group,Lactobacillus plantarum and Lactobacillus casei significantly increased average daily feed intake（ ADFI） and average daily gain（ ADG） and decreased feed / gain（ F / G） after weaning（ P〈0. 05）,however,no effects were found before weaning for both tested strains（ P〉0. 05）. Organ indexes of piglets at 35 days such as spleen and thymus were also significantly increased in the two tested strains group（ P〈0. 05）,and stomach index and large intestine index were not affected.（ P〉0. 05）. Lactobacillus plantarum and Lactobacillus casei improved the villus development of jejunum and ileum of weaning piglets. The findings indicate that both Lactobacillus plantarum and Lactobacillus casei have potential benefits to the growth performance and inhibition of diarrhea of piglets. How-ever,further study of mechanisms and a large number of repeated experiments are needed for the evaluation of both tested strains for clinical use.
出处
《动物营养学报》
CAS
CSCD
北大核心
2015年第12期3805-3811,共7页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
农业部公益性行业专项"饲料中抗生素替代品关键研究与示范"(201403047)
饲用微生物国家重点实验室开放课题
关键词
植物乳杆菌
干酪乳杆菌
仔猪
生长性能
器官指数
肠道形态
Lactobacillus plantarum
Lactobacillus casei
piglets
growth performance
organ index
intestinal morphology
