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Position: Home > Articles > Effects of Phytase on the Utilization of Energy and Protein in Corn-soybean Diets for Piglets Journal of Sichuan Agricultural University 2003,21 (3) 254-257

植酸酶对仔猪饲粮能量和蛋白质利用率影响的研究

作  者:
陈文;陈代文;吴秀琼;黄金秀;谭雪梅
单  位:
四川农业大学动物营养研究所
关键词:
植酸酶;仔猪;能量利用率;蛋白质利用率
摘  要:
选用48头长白×荣昌杂交仔猪进行2个2×2因子的代谢试验,每个试验均设2个有效磷水平(0 36%和0 26%)、2个植酸酶添加水平(0FTU/kg、750FTU/kg),共4个处理组,每个处理组设6个重复,每个重复1头仔猪。试验一为高能水平饲粮(DE:14 3MJ/kg),仔猪起始体重9 2kg;试验二为低能水平饲粮(DE:12 8MJ/kg),仔猪起始体重16 9kg,试验期二周。结果表明,在本试验条件下,饲粮中添加750FTU/kg植酸酶,改善蛋白质利用率,但对能量利用率没有明显影响。降低饲粮能量水平则降低能量和蛋白质利用率,降低饲粮有效磷水平则降低蛋白质利用率,低磷饲粮中添加750FTU/kg植酸酶时蛋白质利用率相似于或高于高磷饲粮。
译  名:
Effects of Phytase on the Utilization of Energy and Protein in Corn-soybean Diets for Piglets
作  者:
CHEN Wen, CHEN Daiwen, WU Xiuqiong, HUANG Jinxiu, TAN Xuemei (Animal Nutrition Research Institute, Sichuan Agricultural Univesity, Yaan 625014, Sichuan, China)
关键词:
phytase; piglets; energy utilization; protein utilization
摘  要:
Two 2×2 factorial balance experiments by using 48 Landrace×Rongchang piglets are conducted to study the effects of phytase supplementation in the diets on Energy and Protein utilizations. In each experiment, there are 4 treatments with 2 dietary levels of available phosphorus (AP) (036% and 026%) and 2 levels of phytase supplementation (0 and 750?FIU/kg). Each treatment had 6 replicates of 1 pig. Dietary DE is 143?MJ/kg and initial bodyweight of pigs is 92?kg for Exp.1, and 128?MJ/kg, 169?kg for Exp.2. The experiment lasts for 2 weeks. It is concluded 750?FTU/kg phytase supplementation enhances the utilization of dietary protein, but has no effect on energy utilization. Protein utilization for pigs fed 026% AP diets added with 750?FTU/kg phytase are higher than those in the 036% AP diets. Decrease of dietary levels of energy reduces energy and protein utilization. Decrease of dietary levels of AP reduces protein utilization.

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