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：本研究旨在验证泌乳期母猪日粮中添加酒糟（vinasse）作为酸化剂的应用效果，及其对产仔群的影响。本试验选取14头Agroceres品系母猪，于泌乳首日至断奶期间开展试验。试验所用酒糟取自试验场附近的酿酒厂，储存于经灭菌处理的桶中。试验采用完全随机试验设计，将受试母猪分为两组：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酒糟。日粮每日饲喂四次，单次饲喂的日粮由0.5升酒糟与0.5升水混合制成。每日称量饲粮残留量，通过记录母猪采食量评估其生产性能。仔猪于出生后每周称重直至断奶，以统计其增重数据。试验结果显示，添加酒糟可提升泌乳母猪的采食量（p<0.05，差异具有统计学意义），同时改善日粮适口性。日粮中添加该酸化剂对仔猪增重无显著影响（p>0.05，差异无统计学意义）。母猪对酒糟的采食量未对产仔群的生产性能产生影响。综上，泌乳期母猪日粮中添加酒糟具有积极效益，可有效提升母猪采食量。