动物营养学报2015，Vol.27Issue(9)：2811-2819,9.DOI:10.3969/j.issn.1006-267x.2015.09.019
饲粮添加复合抗菌肽与包被氧化锌对断奶仔猪生长性能及血清生化指标的影响
Effects of Dietary Anti-Microbial Peptides and Coated Zinc Oxide on Growth Performance and Serum Biochemical Indices of Weaning Piglets
摘要
Abstract
This experiment was conducted to investigate the effects of dietary anti-microbial peptides ( C-AMPs) and coated zinc oxide ( C-ZnO) on growth performances, serum biochemical indices, nutrient ap-parent digestibility and feacal microflora of weaning piglets. A total of 160 large white piglets with body weight of (6.98±0.05) kg were randomly allotted to 4 groups with 4 replicates per group and 10 piglets per replicate. The four groups were fed the basal diet, the basal diet+0.5 mg/kg C-AMPs ( C-AMPs group) , the basal diet+1 800 mg/kg C-ZnO ( C-ZnO group ) and the basal diet+0. 5 mg/kg C-AMPs+1 800 mg/kg C-ZnO ( C-AMPs+C-ZnO group) . The trial lasted for 28 days. The results showed as follows:1) compared with the control group, dietary supplemented with C-AMPs and C-ZnO or two together, the average daily gain and av-erage daily feed intake significantly increased ( P<0.05 or P<0.01) , the diarrhea rate of weaning piglets signif-icantly reduced ( P<0.01) . 2) Compared with the control group, dietary supplemented with C-AMPs and C-ZnO significantly increased serum growth hormone content (P<0.05), significantly decreased serum alkaline phosphatase activity (P<0.05); dietary supplemented with both C-AMPs and C-ZnO significantly increased the content of immunoglobulin G, growth hormone, interleukin 2 and interleukin 6 in serum ( P<0.01) , dieta-ry supplemented with C-AMPs significantly increased serum CSF-Ab content (P<0.01). 3) Compared with the control group, dietary supplemented with C-ZnO significantly increased the apparent digestibility of crude protein, ether extract and organism matter (P<0.05). 4) Compared with the control group, dietary supple-mented with C-AMPs and C-ZnO or two together significantly reduced the number of E.coli in excrement (P<0.01), but the number of Bifidobacterium significant increased (P<0.01). The results indicate that supple-mentation of C-AMPs and C-ZnO in the diet can improve the growth performance and nutrient apparent digesti-bility, also can regulate the immune related and the balance of intestinal flora.关键词
复合抗菌肽/包被氧化锌/断奶仔猪/生长性能/血清生化指标/消化率/微生物菌群Key words
compound antimicrobial peptides/coated ZnO/weaning piglets/growth performance/serum bio-chemical indices/digestbility/microflora分类
农业科技引用本文复制引用
李方方,苏航,张勇,况应谷,高原,孟玲,郭福来,朱宇旌..饲粮添加复合抗菌肽与包被氧化锌对断奶仔猪生长性能及血清生化指标的影响[J].动物营养学报,2015,27(9):2811-2819,9.基金项目
国家自然科学基金(31440082,31101253) （31440082,31101253）
