复合营养调控剂对冷季放牧绵羊生长性能、屠宰性能和血清生化指标的影响

doi:10.16431/j.cnki.1671-7236.2016.04.015

摘要/Abstract

摘要： 试验旨在研究不同营养调控剂对冷季放牧绵羊生长性能、屠宰性能和血清生化指标的影响。采用单因素完全随机区组试验设计,将48只健康、体重相近(28.01±1.70)kg的7月龄放牧母羊随机分为4组,Ⅰ组不补饲;Ⅱ组补饲常规精料;Ⅲ组补饲常规精料+复合配方1 (0.30%苹果酸、0.06%半胱胺、0.08%糖萜素);Ⅳ组补饲常规精料+饲料复合配方2 (0.60%苹果酸、0.12%半胱胺、0.16%糖萜素)。其中每组3个重复,每个重复4只,进行45 d饲养试验。结果表明:①试验Ⅲ组末重最高,较Ⅱ组和Ⅳ组分别提高6.26% (P>0.05)、3.69% (P>0.05);试验Ⅲ组平均日增重最高,较Ⅱ组和Ⅳ组分别提高26.32% (P<0.01)、5.74% (P>0.05)。②试验Ⅲ组的屠宰率较Ⅱ组提高4.68% (P>0.05);试验Ⅲ组的净肉率较Ⅰ组、Ⅱ组和Ⅳ组分别提高18.46% (P<0.05)、10.97% (P>0.05)和4.40% (P>0.05);试验Ⅲ组的胴体净肉重较Ⅰ组、Ⅱ组和Ⅳ组分别提高49.74% (P<0.01)、13.22% (P>0.05)和18.27% (P<0.05);试验Ⅲ组的胴体净肉率较Ⅰ组、Ⅱ组和Ⅳ组分别提高10.42% (P<0.01)、6.00% (P>0.05)和3.37% (P>0.05)。③在血清GLU、Ca、P、HDL、LDL、GPT、IgG含量中,试验Ⅰ、Ⅱ、Ⅳ和Ⅲ组依次呈上升趋势,而其A/G、TG含量依次呈下降趋势。综上,补饲复合营养调控剂可改善冷季放牧绵羊的生长性能、屠宰性能和血清生化指标,其中补饲复合配方1组(试验Ⅲ组)作用效果最佳。

关键词: 放牧绵羊; 复合营养调控剂; 生长性能; 屠宰性能; 血清指标

Abstract: This experiment was conducted to investigate the effects of complex nutritional regulation additives on growth performance, slaughter performance and serum biochemical indexes of grazing sheep in cold season.A single factor random block design was used and 48 grazing ewes with the average weight (28.01±1.70) kg and 7 months old were randomly divided into 4 groups:Group Ⅰ without supplement;Group Ⅱ with concentrate;Group Ⅲ with concentrate+complex formulation 1 (0.30% malic acid, 0.06% cysteamine, 0.08% saccharicterpenin);Group Ⅳ with concentrate+complex formulation 2 (0.60% malic acid, 0.12% cysteamine, 0.16% saccharicterpenin)with 3 replicates per group and 4 grazing ewes per replicate.The results showed that:①The final weight of group Ⅲ was the highest and higher than group Ⅱ and Ⅳ by 6.26% (P>0.05)、3.69% (P>0.05), respectively.The average daily gain of group Ⅲ was highest, and higher than group Ⅱ and Ⅳ by 26.32% (P<0.01)、5.74% (P>0.05) respectively.②Comparing with group Ⅱ, the slaughter rate of group Ⅲ was increased by 4.68% (P>0.05).Compared with groupⅠ, Ⅱ and Ⅳ, the meat percentage of group Ⅲ was increased 18.46% (P<0.05), 10.97% (P>0.05) and 4.40% (P>0.05), while the net meat weight of carcass in group Ⅲ was increased by 49.74% (P<0.01), 13.22% (P>0.05) and 18.27% (P<0.05), respectively.Compared with groupⅠ, Ⅱ and Ⅳ, the net meat rat of carcass in group Ⅲ was increased 10.42% (P<0.01)、6.00% (P>0.05) and 3.37% (P>0.05), respectively.③There was a rising trend as the order of groupⅠ, Ⅱ, Ⅳ and Ⅲ in serum glucose, Ca, P, HDL, LDL, GPT and IgG, while A/G and TG showed a decreasing trend.Based on the above results, in this trial, supplementing complex nutritional regulation additives had good effects on growth performance, slaughter performance and serum biochemical indexes of grazing sheep in cold season.And supplementing complex formulation group 1 (group Ⅲ) was the best.

Key words: grazing sheep; complex nutritional regulation additives; growth performance; slaughter performance; serum indexes

中图分类号:

S826

梁静, 张文举, 王博. 复合营养调控剂对冷季放牧绵羊生长性能、屠宰性能和血清生化指标的影响[J]. , 2016, 43(4): 953-959.

LIANG Jing, ZHANG Wen-ju, WANG Bo. Effects of Complex Nutritional Regulation Additives on Growth Performance, Slaughter Performance and Serum Biochemical Indexes of Grazing Sheep in Cold Season[J]. , 2016, 43(4): 953-959.

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