酵母培养物在断奶仔猪上的应用效果

摘要

仔猪断奶是养猪生产过程中很关键的一个环节,断奶应激会影响其胃肠道健康.断奶后支持其生长速度达到最佳的一些肠道健康方案包括:最大化采食量和日粮消化率;给肠道提供营养维持肠道壁的结构和吸收功能;稳定肠道菌群,最小化非有益菌的增殖;促进仔猪免疫系统的发育.如今,营养性添加剂成为了一种最大化采食量和最终优化性能的可靠方案.全发酵的酵母培养物是包含无活性酵母细胞和代谢产物的复杂产品.许多研究表明,饲料中添加酵母培养物对反刍动物和猪有益,可以改善动物的生长速度、产奶量、氮平衡和营养素的消化.本文就饲料中添加酵母培养物对断奶仔猪生长性能、养分消化率、血液生化指标和肠道健康的影响进行综述.%Weaning is a critical production step and imposes multiple and simultaneous stressors on young pigs that impacts gastrointestinal tract health.Some targets to support optimal growth in the young pig after weaning includes maximize feed intake and diet digestibility without compromising gut health,maintain gut integrity and absorptive function,stabilizing the gut microbiota to minimize risk of proliferation of non-beneficial bacteria,and supporting the developing immune system of the young pig.Nowadays,nutritional sup-plementation represents a valid option to maximize nutrient intake.Fully fermented yeast culture (YC)is a dried product containing yeast and various metabolites of yeast fermentation.Research has indicated that YC supplementation is beneficial to ruminants and pigs by enhancing growth performance,milk production,nitro-gen balance,and nutrient digestion.In this paper,the effects of yeast culture supplementation on weaning piglets were reviewed.