›› 2016, Vol. 43 ›› Issue (12): 3221-3226.doi: 10.16431/j.cnki.1671-7236.2016.12.020

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Effects of Different Types of N-carbamylglutamate on the Growth Performance, Serum Biochemical Indexes and Fat Distribution of Tan Sheep

WANG Hong-mei1, NIU Wen-zhi2, ZHANG Gui-jie1   

  1. 1. Departments of Animal Science, Ningxia University, Yinchuan 750021, China;
    2. Ningxia Hui Autonomous Region Husbandry Workstation, Yinchuan 750001, China
  • Received:2016-06-07 Online:2016-12-20 Published:2016-12-22

Abstract:

The objective of the present experiment was to determine the effect of different types of N-carbamoylglutamate on growth performance,serum biochemical indexes and fat distribution of Tan sheep. Sixty male Tan lambs with average weight of (20.14±0.31)kg and similar age were randomly assigned three groups with five replications per group and 4 lambs per replication. The lambs in control group were fed basal diet, while lambs in test groups were fed diets containing 0.1% NCG and 0.1% RP-NCG,respectively. The results showed that:① Comparing with control group,the ADG was significantly improved (P<0.05) and F/G was significantly decreased (P<0.05) when 0.1% NCG or 0.1% RP-NCG were supplemented,while there was no significant difference between two experimental groups (P>0.05).② Dietary supplemented with 0.1% NCG or 0.1% RP-NCG significantly decreased the serum urea nitrogen (P<0.05),but there were no significant differences in serum total protein,creatinine content and creatine kinase activity (P>0.05).③ The ration of meat weight to carcass weight of two experimental groups was significantly improved (P<0.05).As 0.1% NCG or 0.1% RP-NCG were supplemented in the diets, the content of subcutaneous fat and GR value were significantly decreased (P<0.05),and the content of intramuscular fat (IMF) was significantly increased (P<0.05).In conclusion,dietary supplemented with 0.1% NCG or 0.1% RP-NCG could improve the growth performance and slaughter performance while there was no significant difference between NCG and RP-NCG.

Key words: N-carbamoylglutamate (NCG); Tan sheep; fat distribution; serum biochemical indexes

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