低磷日粮添加植酸酶、抗坏血酸和维生素D_3对育肥猪的影响  

Phytase,Ascorbic Acid and Vitamin D_3 to Low-phosphorus Diets on the Impact of Finishing Pigs

作　　者：范苗[1] 曹洪战[1] 田树海[1] 陈楠[1] 任丽琴[1] 孙召君[1] 芦春莲[1] 

机构地区：[1]河北农业大学动物科技学院,河北保定071000

出　　处：《湖北农业科学》2010年第4期913-916,共4页Hubei Agricultural Sciences

基　　金：河北省重大技术创新项目(07221008Z);河北省自然科学基金项目(C2009000588)

摘　　要：试验研究了在低磷日粮中添加植酸酶、抗坏血酸、维生素D3、木聚糖酶等物质对育肥猪生产性能、养分消化率和血液指标的影响。选取50kg±4.49kg的斯格纯种猪60头,分为6个组:①常磷组;②低磷组(NC);③NC+植酸酶组;④NC+植酸酶+抗坏血酸组;⑤NC+植酸酶+抗坏血酸+维生素D3组;⑥不加磷酸氢钙+植酸酶+抗坏血酸+维生素D3组。每组2个重复,每个重复5头猪。结果表明,低磷日粮添加植酸酶、抗坏血酸和维生素D3后显著提高了日增重和采食量(P<0.05),但对料重比无影响(P>0.05),使各养分的消化率显著提高(P<0.05)。血液指标中只有碱性磷酸酶活性显著降低(P<0.05),其余均无显著影响。因此,在育肥猪低磷日粮中添加植酸酶、抗坏血酸和维生素D3等物质能代替部分无机磷,可显著改善育肥猪的生长性能和养分消化率。The effect of adding phytase, ascorbic acid, vitamin D3, xylanase enzymes in low-phosphorus diets on growth performance, nutrient digestibility and plasma index of finishing pig was studied. Sixty purebred pigs （Scott） with an average initial weight of 50 kg ± 4.49kg were divided into six groups randomly： ① control group; ② low-phosphorus group （NC）;③ NC＋phytase; ④NC＋phytase ＋ ascorbic acid; ⑤NC＋phytase＋ ascorbic acid ＋ vitamin D3; ⑥without phosphate ＋ phytase ＋ ascorbic acid ＋ vitamin D3. Each treatment had two replicates of five pigs. The results showed that： The addition of phytase, ascorbic acids, vitamin D3 to low-P diets significantly increased daily gain and feed intake（P0.05）, and F/G were not affected. Nutrient digestibility were improved apparently （P0.05）. Alkaline phosphates activity in Plasma index reduced significantly （P 0.05）. Adding phytase, ascorbic acid and vitamin D3 to low-phosphorus diets of finishing pigs could substitute for part of the inorganic phosphorus, and significantly improve the growth performance and nutrient digestibility of the pigs.

关 键 词：育肥猪 低磷 植酸酶 生产性能 养分消化率 

分 类 号：S828.621[农业科学—畜牧学] S816.71[农业科学—畜牧兽医]