Phyzyme XP phytase improves growth performance and nutrient utilization in wheat-based diets fed to weaned pigs

被引：8

作者：

Sands, J. S.

Kay, R. M.

机构：

[1] Danisco Anim Nutr, Marlborough SN8 1XN, Wilts, England

[2] ADAS Terrington, Kings Lynn PE34 4PW, England

来源：

LIVESTOCK SCIENCE | 2007年 / 109卷 / 1-3期

关键词：

pigs; phytase; performance; digestibility; balance;

D O I：

10.1016/j.livsci.2007.01.111

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The effect of phytase (Phyzyme XP) on performance and nutrient utilization in piglets fed wheat-based diets was evaluated using 24 male pigs averaging 7 kg. Four experimental diets containing either 0 (positive control, adequate nutrients), 0 (negative control (NC), reduced nutrients), 500 or 1000 U/kg of phytase were used for each of two dietary phases (day 0 to 14 and day 14 to 33). Feed and water were provided ad libitum. Animals were weighed at weekly intervals until day 28 and feed intake (DFI) recorded daily. From day 28 to 33 pigs were fed at 3 times maintenance energy intake and DFI recorded. Total amounts of faeces PF and urine were recorded for each individually housed pig. Digestibilities and balance of dry matter (DM), phosphor-us (P), calcium (Ca), nitrogen (N) and gross energy (GE) were calculated for feed, faeces and urine. Compared to the NC, daily live weight gain was improved (P < 0.05) for pigs receiving the highest level of supplemental phytase in phase 2. Phytase addition at 1000 FTU/kg also increased faecal digestibilities of P and Ca (P<0.05). Contrasts comparing NC and Phytase diets showed that Ca (P < 0.02) and P (P<0.05) balance were improved. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：264 / 267

页数：4

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