复合酶制剂对番鸭饲喂效果的研究

Study on feeding value of complex enzyme in muscovy ducks

本研究以番鸭为研究对象 ,研究复合酶制剂对肉鸭的饲喂效果。结果表明 :在日粮能量水平低于 NRC,而粗纤维含量超过 NRC标准的番鸭日粮中添加 0 .1 %和 0 .2 %酶制剂可分别提高 6～ 8周龄番鸭生长速度 1 7.0 1 %( P<0 .0 5)和 2 1 .75%( P<0 .0 1 ) ;可显著提高肝脏、心脏占活重的比例 ( P<0 .0 5) ;复合酶制剂还能显著提高日粮中营养物质的消化率 ,显著提高钙、磷吸收率 ;可显著提高血清总蛋白 ( P<0 .0 1 )、白蛋白 ( P<0 .0 5)和球蛋白 ( P<0 .0 1 )的含量 ;可减少粪便排泄量 ,显著降低血清中血糖、尿酸、总胆固醇和甘油三脂的含量( P<0 .0 5) ,显著地降低泄殖腔粪样粘度 ( P<0 .0 1 )。是一种能提高饲料利用率 。

Muscovy ducks were used as animal model to determine the feeding value of complex enzyme. The results obtained from the experiment showed that the growth rates of the ducks at 6~8 week age fed with the diets contained 0.1% and 0.2% complex enzymes respectively wer 18.53% (P<0.05) and 23.26%(P<0.01) faster than that of the controlled groups respectively. Complex enzyme increased liver weight and heart weight(P<0.05) of the ducks, increased digestibility of nutrients and abosorptivity of calcium and hosphorus, increased concentrations of total protein(P<0.01), albumin (P<0.05) and globulin(P<0.01) in serum of the ducks and decreased excrement amount of feces, reduced concentrations(P<0.05) of blood sugar, uric acid, cholesterol, and triglyceride in serum, and reduced rescosity(P<0.01) of diggesta and excreta. It suggested that complex enzyme should be an effective feed additive for ducks.