饲粮非植酸磷水平对褐壳蛋鸡植酸磷利用率的影响

150只蛋鸡随机分为5个处理组,5个处理组非植酸磷水平分别为0.2%,0.25%,0.3%,0.35%,0.4%,钙水平都为3.5%。结果表明:饲粮非植酸磷水平为0.2%时,蛋鸡对植酸磷的表观利用率为65.5%(P<0.05)。饲粮非植酸磷水平对蛋鸡生产性能无明显影响(P>0.05)。

植酸酶及其在饲料中的应用

植酸,很早就被认为是饲料中的一种抗营养因子.多年来,动物营养学家一直在致力于寻找经济有效的途径来解决这种抗营养因子的影响,提高单胃动物对饲料中磷的利用,降低无机磷源添加成本和单胃动物排泄磷对环境的影响.目前,在植酸酶的开发和应用上已取得了突破性的进展,为植物中磷的利用开辟了新途径,其潜在的营养价值和对动物生产性能的改善,以及减轻高磷粪便对环境的污染等方面的重要性己成为不争的事实.

Effects of AsN 1980 phytase on growth and phosphorus utilization of broilers

The experiment was conducted with 180 one-day-old AA broilers that were randomly divided into one control group and one trial group to study the effects of AsN1980 phytase on broilers growth performance and P utilization in low available phosphorus diets. Results showed that phytase supplement decreased F/W by 12.4%-13.4%and increased phosphorus availability by 7.63%-8.27%, both of which were significantly superior to the control group (P< 0.05).