[Objective] The study was aimed to investigate the effects of NS composite lactobacillus preparation on production performance and some immune indexes of sows.[Method] The sows were fed on the diets supplemented with the NS composite lactobacillus preparation,and the changes of production performance,levels of IgG,IgA and IgM in serum and colostrum,and T lymphocyte subpopulations were detected.[Result] When the NS composite lactobacillus preparation was supplemented to the sow diet at a proportion of 0.2%,the average weight of weaning litter at 21 days old was significantly increased.Moreover,the levels of IgG,IgA and IgM in serum and colostrum of sows were significantly increased at the time of delivery and after 30 d post delivery.The antibodies in colostrum could be maintained at high levels.The percentage of CD3＋ and CD4＋ lymphocyte subpopulations was also increased after supplementation with the NS composite lactobacillus preparation at a proportion of 0.2%.[Conclusion] The NS composite lactobacillus preparation can promote performance and enhance humoral and cellular immunity in sows.
Journal of Anhui Agricultural Sciences
NS composite lactobacillus