摘要
为研究不同水平N-氨甲酰谷氨酸(NCG)对断奶仔猪生长性能、腹泻率以及血清生化指标的影响,本试验选取品种相同、胎次和体重相近的21日龄(杜×长×大)三元健康仔猪288头,随机分成6组,每组6个重复(公母各半),每个重复8头仔猪。各处理组日粮中分别添加0、0.02%(Ⅰ组)、0.04%(Ⅱ组)、0.06%(Ⅲ组)、0.08%(Ⅳ组)和0.10%(Ⅴ组)的NCG。结果显示:(1)1~18 d,Ⅴ组的日采食量较对照组提高了14.8%(P<0.05);各试验组日增重和料重比较对照组差异不显著(P>0.05)。19~28 d,除Ⅳ组外,其余试验组日采食量均显著高于对照组,分别提高10.4%(I组)、13.0%(Ⅱ组)、7.6%(Ⅲ组)、9.1%(Ⅴ组)(P<0.05);I组、Ⅲ组日增重相比对照组提高20.8%和19.0%(P<0.05);同时,Ⅰ组、Ⅱ组、Ⅲ组、Ⅳ组的料肉比与对照组相比分别降低12.7%、7.1%、8.1%和10.2%(P<0.05)。试验全期,日粮中添加0.02%、0.04%、0.10%NCG后,日采食量相比对照组分别提高了12.2%、12.4%和12.1%(P<0.05);Ⅰ、Ⅱ、Ⅲ、Ⅴ组的日增重分别比对照组提高13.0%、14.6%、5.7%和15.5%(P<0.05);日粮中添加0.02%~0.10%NCG组料重比均显著降低(P<0.05)。(2)试验组腹泻率与对照组相比差异不显著(P>0.05),但有降低的趋势。(3)各试验组血液常规和血清生化指标较对照组相比虽有一定变化,但均在正常生理范围。由此可见,NCG对断奶仔猪健康无负面影响,且能增加仔猪日采食量与日增重,降低料重比,提高生长性能,降低腹泻。
This study was conducted to investigate the effect of N-carbamoylglutamate （NCG） on growth performance, diarrhea and serum biochemical indices of weaned piglets.A total of 288 （DurocxLandracexYorkshire） 21 day-old crossbred healthy piglets with same breed,similar parity and weight were selected.They were randomly divided into 6 groups,6 repeats each group （half nmnber males and half number females）,8 piglets each repeat.The each experimental group were added 0,0.02%（Group Ⅰ ）,0.04%（Group Ⅱ ）,0.06%（Group Ⅲ） ,0.08%（Group Ⅳ） and 0.10%（Group Ⅴ） NCG.The results showed that： （1）After 1 - 18 d the average daily feed intake（ADFI） of group V increased by 14.8% compared with the control group （P 〈 0.05） ;the differences in the daily gain（ADG） and feed/gain（FIG） of experimental groups were not significant（P 〉 0.05）. After 19 - 28 d,except for group Ⅳ ,the ADFI of the other test groups were significantly higher than the control group, respectively,increasedby 10.4% （group Ⅰ）,13.0% （group Ⅱ）,7.6% （group Ⅲ）,9.1% （group Ⅳ）（P〈0.05）;TheADGof group Ⅰ and group Ⅲwere 20.8% and 19.0% higher than that of control group（P 〈 0.05） ;except 0.10% group,the F/G of experimental groups were significantly reduced （P 〈 0.05 ）.In whole trial period,the diet added 0.02% ,0.04% ,0.10% NCG significantly improved the ADFI of piglets,increased by 12.2%, 12.4% and 12.1%（P 〈 0.05）;The ADG of group Ⅰ , Ⅱ, Ⅲand Ⅴincreased by 13.0%, 14.6%,5.7% and 15.5%, respectively （P〈 0.05）,the F/G in 0.02% - 0.10% NCG groups were significantly decreased （P 〈 0.05）.（2） Compared with control group,the differences in the diarrhea rate of experimental groups were not significant （P 〉 0.05）,but it had a tendency to reduee.（3）The routine examination in blood and serum biochemical indexes of each experimental group were different from that of the control group,but they were in the normal physiologic.al range.In conclnsion ,NCG has no negative impact to health of weaning piglets,and it could increase ADFI and ADG of piglet, reduce F/G,improve the growth performance,reduce the diarrhea.
出处
《中国饲料》
北大核心
2017年第23期20-24,共5页
China Feed
关键词
N-氨甲酰谷氨酸
断奶仔猪
生长性能
血清生化指标
N-carbamoylglutamate
weaned piglets
growth performance
serum biochemical indices
