Dried distillers grains with solubles in diets during late gestation affects behavior and maintains the performance of sows

ABSTRACT We examined the effect of dried distillers grains with solubles (DDGS) in diets for late gestating sows on sow and litter performance, colostrum chemical composition, and sow behavior. Sixty gestating sows of 3.77±1.65 parity were divided into three groups of 20 animals, in a randomized block design with 0 (corn-soybean meal diet), 150, or 300 g kg−1 DDGS from 84 days of gestation until farrowing. Sows fed 300 g kg−1 DDGS presented a lower frequency of standing position and eating activity. The lying lateral position was more frequent in the first 40 min post-feeding for sows fed the highest DDGS level. There was no effect of diets on sow and litter performance; however, DDGS inclusion tended to increase lactation feed intake. Inclusion of DDGS was inclined to produce more lactose and less protein in colostrum, but did not affect colostrum fat, total solids, and ash contents. Inclusion of up to 300 g kg−1 DDGS in the diet of late gestation sows does not change sow and litter performance and colostrum composition compared with corn-soybean meal diets, but it favored animal welfare.

摘要 本研究探讨了日粮中添加可溶性干酒糟及其可溶物（dried distillers grains with solubles，DDGS）对妊娠晚期母猪及其产仔性能、初乳化学成分以及母猪行为的影响。本试验选取60头胎次为3.77±1.65的妊娠母猪，采用随机区组设计，将其分为3组（每组20头），分别饲喂基础玉米-豆粕日粮，以及在基础日粮中添加150 g kg⁻¹、300 g kg⁻¹ DDGS的日粮，饲喂周期为妊娠第84天至分娩。饲喂300 g kg⁻¹ DDGS的母猪，其站立和采食行为的发生频率更低；当日粮DDGS添加水平最高时，母猪在饲喂后前40分钟内更频繁地采取侧卧姿势。日粮添加DDGS对母猪及产仔性能无显著影响，但有提高母猪泌乳期采食量的趋势。日粮添加DDGS有提高初乳乳糖含量、降低初乳蛋白质含量的趋势，但对初乳脂肪、总固形物及灰分含量无显著影响。综上，在妊娠晚期母猪日粮中添加最高300 g kg⁻¹的DDGS，与玉米-豆粕基础日粮相比，不会改变母猪及产仔性能与初乳组成，且可改善动物福利。