Vinasse in the diet of lactating sows and its effect on litter

ABSTRACT. The aim of this study was to verify the impact of adding vinasse as an acidifier in sows diet during the lactating period and its effect on litter. A total of 14 agroceres females were used from the first day of lactation until weaning. The vinasse was obtained in a mill near the experimental facility and was stored in sterilized barrels. Animals were distributed in a completely randomized experimental design into two treatments: control liquid diet and liquid diet with the inclusion of vinasse in each feed supply of the day. The diets were supplied four times a day, containing a mixture of ½ L of vinasse and ½ L of water. Feed leftovers were weighted daily. Feed intake was used to evaluate sows’ performance. The piglets were weighted every week after birth until weaning in order to obtain weight gain. Vinasse inclusion showed an increase (p < 0.05) in feed intake of lactating sows, improving diet palatability. Inclusion of acidifier in the diet did not show (p > 0.05) difference in weight gain of piglets. Vinasse consumption by sows did not influence litter performance. The inclusion of vinasse in the diet of lactating sows is beneficial because increases feed consumption.

摘要
本研究旨在探究泌乳期母猪日粮中添加糖糟（vinasse）作为酸化剂的作用效果，及其对产仔群的影响。试验选取14头Agroceres品系母猪，自泌乳首日至断奶全程开展试验。试验所用糖糟采自试验场附近的糖厂，储存于灭菌后的密闭桶中。采用完全随机试验设计将受试母猪分为两组处理：对照组饲喂液态基础日粮，试验组每日每次饲喂时均在液态日粮中添加糖糟。日粮每日饲喂四次，每次饲喂的混合液包含0.5升糖糟与0.5升水。每日称量剩余饲粮，通过记录采食量评估母猪生产性能。仔猪自出生后每周称重一次直至断奶，以计算其增重情况。结果显示，日粮中添加糖糟可显著提升泌乳期母猪采食量（p<0.05），改善日粮适口性；日粮中添加该酸化剂对仔猪增重无显著影响（p>0.05）。母猪对糖糟的采食量未对产仔群生产性能产生显著影响。综上，泌乳期母猪日粮中添加糖糟具有积极作用，可有效提升母猪采食量。