膨化棉籽对荷斯坦肥育牛的饲喂效果

Feeding Effect of Expanding Cottonseed on Finishing Holstein Steer

将45头去势荷斯坦公牛随机分成三组,对照组(I组)饲喂只含豆粕的精料,试验II组饲喂含膨化棉籽(EC)替代50%豆粕日粮,试验III组饲喂含EC完全替代豆粕的日粮。结果表明,三组供试牛的精料消耗量、末重及日增重均无显著差异(P>0.05)。经济效益分析表明,就本场规模而言(300头),试验II组的生产成本比第I组减少0.44元/头.日,每年可节约精料费用48 180元;试验III组的生产成本比对照组减少0.94元/头.日,每年可节约精料费用102930元。

Forty-five Holstein steer were randomly divided into three groups. Concentrate of group Ⅰ only contained soybean meal, concentrate of group Ⅱ contained 1/2 expanding cottonseed and 1/2 soybean meal and concentrate of group Ⅲ only contained expanding cottonseed. The results showed that there were no significant differences （P〉0.05） of concentrate consumption, final weight and daily gain among three groups. The analysis of economic benefits was listed as follows, as far as the scale of the beef cattle farm （300 fattening cattle） was concerned, feeding production cost of group Ⅱ than group Ⅰ reduced by ￥ 0. 44 per cattle a day, and that of the group Ⅲ at the level of ￥ 0. 94 per cattle a day. The concentrate cost of the Ⅱ group and group Ⅲ was saved ￥ 48 180 and ￥ 102 930 per year, respectively.