动物营养学报2017，Vol.29Issue(5)：1678-1686,9.DOI:10.3969/j.issn.1006⁃267x.2017.05.028
壳聚糖对断奶仔猪生长性能、粪便评分及血清激素和T淋巴细胞亚群的影响
Effects of Chitosan on Growth Performance, Fecal Score, Serum Hormones and T Lymphocyte Subset of Weaned Piglets
摘要
Abstract
The effects of chitosan on growth performance, fecal score, serum hormones and T lymphocyte subset of weaned piglets were investigated in this study. A total of 60 weaned piglets ( weaned at 28 days of age) were selected and randomly assigned to 5 groups, and each group contained 12 piglets. Piglets in control group were fed a basal diet, and those in experimental groups were fed the basal diet supplemented with 250, 500, 1000 and 2000 mg/kg chitosan, respectively. The experiment lasted for 14 days. The results showed as follows:1) diet supplemented with 250 to 2000 mg/kg chitosan significantly increased average daily gain ( ADG) ( P<0.05) , and significantly decreased feed/gain ( F/G) of weaned piglets ( P<0.05) . 2) Diet sup?plemented with 250 to 2000 mg/kg chitosan significantly decreased fecal score on the day 11 of weaned piglets ( P<0.05) . 3) Diet supplemented with appropriate dose of chitosan significantly increased serum concentrations of growth hormone?releasing hormone ( GHRH ) ( 250 to 2000 mg/kg ) , growth hormone ( GH ) ( 500 to 1000 mg/kg) and leptin (LP) (2000 mg/kg) (P<0.05), and significantly decreased serum concentrations of corticotropin releasing hormone (CRH) (250 to 2000 mg/kg), adrenocorticotropic hormone (ACTH) ( 500 to 1000 mg/kg ) , cortisone ( COR ) ( 250 to 2000 mg/kg ) and soluble CD8 ( sCD8 ) ( 500 to 2000 mg/kg) of weaned piglets ( P<0.05) . The results suggest that diet supplemented with appropriate dose of chitosan can improve the growth, reduce the diarrhea and alleviate the weaning stress of weaned piglets.关键词
壳聚糖/断奶仔猪/生长性能/粪便评分/淋巴细胞亚群Key words
chitosan/weaned piglets/growth performance/fecal score/T lymphocyte subset分类
农业科技引用本文复制引用
徐元庆,王哲奇,史彬林,岳远西,秦哲,闫素梅..壳聚糖对断奶仔猪生长性能、粪便评分及血清激素和T淋巴细胞亚群的影响[J].动物营养学报,2017,29(5):1678-1686,9.基金项目
国家自然科学基金(31460605) （31460605）
