动物营养学报Issue(2)：498-506,9.DOI:10.3969/j.issn.1006-267x.2016.02.023
稀土壳糖胺螯合盐对断奶仔猪生长性能、血清生化指标、营养物质消化率及粪中微生物菌群的影响
Effects of Rare Earth-Chitosan Chelate on Growth Performance, Serum Biochemical Indices, Nutrient Digestibility and Fecal Microbial Flora of Weaned Piglets
摘要
Abstract
This study was conduct to explore the effects of dietary rare earth-chitosan chelate ( RECC ) on growth performance, serum biochemical indices, nutrient digestibility and fecal microbial flora of weaned pig-lets.Two hundred and forty healthy Large White piglets weaned at the age of 28 days were selected and ran-domly assigned to 4 groups with 4 replicates in each group and 15 piglets in each replicate.Pigs in the control group were fed a basal diet, while the others in experiment groups were fed the basal diet supplemented with 0.02%, 0.03%and 0.04%RECC, respectively.The trial lasted for 28 days.The results showed as follows:1) compared with the control group, 0.02%and 0.03%dietary RECC significantly increased the average daily gain and average daily feed intake (P<0.05), significantly reduced feed/gain (P<0.05), and dietary RECC significantly reduced the diarrhoea rate of weaned piglets ( P<0.05) .2) 0.02%and 0.03%dietary RECC sig-nificantly increased the serum growth hormone and immunoglobulin G contents of weaned piglets ( P<0.05) . 3) 0.02%and 0.03%dietary RECC significantly increased the digestibilities of dry matter, crude protein and ether extract of weaned piglets ( P<0.05) , and 0.02%dietary RECC significantly increased the digestibilities of Ca and P of weaned piglets ( P<0.05) .4) Dietary RECC had no significant effects on the numbers of Esch-erichia coli, Bifidobacterium and Lactobacillus (P>0.05), but made a trend to reduce the number of Esche-richia coli.It is concluded that diet supplemented with RECC can improve hormone levels and microbial bal-ance, and then promote growth performance and immune function of weaned piglets.The suitable supplemental level of RECC on weaned piglets is 0.02%.关键词
稀土壳糖胺螯合盐/断奶仔猪/生长性能/血清生化指标/营养物质消化率/粪中微生物菌群Key words
RECC/weaned piglets/growth performance/serum biochemical indices/nutrient digestibility/fecal microbial flora分类
农业科技引用本文复制引用
李方方,周晶,朱宇旌,张鑫,高原,孟玲,郭福来,张勇..稀土壳糖胺螯合盐对断奶仔猪生长性能、血清生化指标、营养物质消化率及粪中微生物菌群的影响[J].动物营养学报,2016,(2):498-506,9.基金项目
国家自然科学基金 （）
