首页> 外文期刊>International Journal of Poultry Sciences >The Effects of Phytase and Different Level of Dietary Calcium and Phosphorous on Phytate Phosphorus Utilization in Laying Hens
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The Effects of Phytase and Different Level of Dietary Calcium and Phosphorous on Phytate Phosphorus Utilization in Laying Hens

机译:植酸酶和不同日粮钙磷水平对蛋鸡植酸磷利用的影响

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摘要

This experiment was conducted to study the effects of different levels of phytase (0, 500 and 1000 FTU/kg diet), calcium (2.275 and 3.25 percent) and available phosphorus (0.175 and 0.25 percent) on phytate phosphorus utilization in laying hens. One hundreds ninety two 30-week age White Leghorn (Hy-line W-36) laying hens were randomly allocated in cages for 12 dietary treatments with arranged of 3*2*2 factorial experiment with four replicates and four hens per replicate. The experimental period lasted 90 days, when the age of hen was 42 weeks. Dietary phytase caused a significant (P feed conversion ratio, tibia ash weight, tibia ash percentage, tibia phosphorus, plasma phosphorus and phosphorus digestibility. However, dietary phytase caused a significantly (P food consumption is low, phytase would increase food consumption as well as retention of phosphorus in bones. Also, the lower excreta of phosphorus by using phytase could decrease pollution.
机译:进行该实验以研究不同水平的植酸酶(0、500和1000 FTU / kg饲料),钙(2.275和3.25%)和有效磷(0.175和0.25%)对蛋鸡植酸磷利用的影响。将132头30周龄的白色来亨鸡(Hy-line W-36)产蛋母鸡随机分配到笼子中进行12种饮食处理,并安排3 * 2 * 2阶乘实验,每只重复四只,每只母鸡四只。实验期为90天,当时母鸡年龄为42周。膳食肌醇六磷酸酶引起显着的(磷饲料转化率,胫骨灰重量,胫骨灰分百分比,胫骨磷,血浆磷和磷的消化率。但是,膳食肌醇六磷酸酶引起显着(磷食物消耗低,植酸酶会增加食物的消耗以及保留磷在骨骼中的含量;此外,通过使用植酸酶降低磷的排泄量可以减少污染。

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