围产期母猪饲粮中添加低聚木糖和活性酵母对母猪繁殖性能和哺乳仔猪血清生化指标的影响

摘要

This study was conducted to investigate the effects of dietary supplement with xylo-oligosaccharide ( XOS) and active yeast ( AY) during lactation of sows on reproduction performance and serum biochemical indices of suckling piglets. All 27 healthy sows with similar parity and the expected date of confinement were chose, and randomly divided into 3 groups: control ( basal diet) , XOS ( basal diet+0.03%XOS) and XOS +AY (basal diet+0.03%XOS+0.05%AY) groups, with 9 replicates per group and 1 sow per replicate. The sows were fed diets starting on day 100 of gestation and throughout the 14 days of lactation experiment. The re-sults showed as follow:1) dietary supplement with XOS or AY improved weight gain of piglets and milk pro-duction of sows. And lactation milk production of the sows from the XOS+AY group was increased by 29.58%( P<0.05) . 2) At 7 days of age, dietary supplement with XOS significantly increased calcium ( Ca) content ( P<0.01) and significantly decreased aspartate transaminase ( AST) activity ( P<0.05) in serum of piglets. At 7 days and 14 days of age, supplementation with XOS and AY significantly increased the contents of glucose ( GLU) , albumin ( ALB) , total protein ( TP) , and total iron binding capacity ( TIBC) ( P<0.05) and signif-icantly decreased ammonia ( AMM) content ( P<0.05) in serum of piglets. 3) At 7 and 14 days of age, serum IgG content were significantly increased by 19.42% and 13.57% ( P<0.05) of piglets in the XOS+AY group. In conclusion, these results suggest that the dietary supplement with XOS and AY can improve reproduction performance of sows, alleviate stress reaction, and improve immunity of piglets.%本试验旨在研究母猪饲粮中添加低聚木糖和活性酵母对哺乳仔猪血清生化指标的影响。选择胎次、膘体及预产期相近的健康母猪27头，随机分成3组：即对照组(基础饲粮)、低聚木糖组( XOS组，基础饲粮+0.03%的低聚木糖)和低聚木糖+活性酵母组( XOS+AY组，基础饲粮+0.03%的低聚木糖+0.05%的活性酵母)，每组9个重复，每个重复1头母猪。试验期为妊娠100 d至分娩后14 d。结果表明：1)2个试验组的仔猪窝重和母猪泌乳量均提高，其中XOS+AY组的母猪泌乳量提高29.58%( P<0.05)。2) XOS组仔猪在7日龄时血清中的Ca含量极显著升高( P<0.01)，谷草转氨酶( AST)活性极显著降低( P<0.01)；XOS+AY组仔猪在7日龄和14日龄时血清中的葡萄糖( GLU)、白蛋白( ALB)、总蛋白( TP)含量，总铁结合能力( TIBC)显著升高(P<0.05)，氨(AMM)含量显著降低(P<0.05)。3)7和14日龄XOS+AY组仔猪血清免疫球蛋白G(IgG)含量均显著提高(P<0.05)，分别提高了19.42%、13.57%。综上所述，低聚木糖和活性酵母能改善哺乳母猪的繁殖性能、减缓仔猪的应激反应和提高仔猪部分免疫力。