日粮中添加牛至油对河西绒山羊育肥性能的影响研究

doi:10.11686/cyxb2018129

摘要/Abstract

摘要： 牛至精油对家畜生产性能和免疫力的提高有重要的影响。通过在日粮中添加牛至精油育肥河西绒山羊,研究其对河西绒山羊生长性能、屠宰性能及胴体品质的影响。对照组饲喂基础日粮,试验组在饲喂的基础日粮中分别添加4和7 g宜生饲宝(含牛至精油的添加剂),4和7 g宜生饲宝中牛至精油的含量分别为52和91 mg。对照组和试验组均为同月龄、同体重的河西绒山羊羯羊,试验组和对照组均设3个重复,每个重复5只羊。育肥期为90 d,每30 d为1个阶段。试验结果表明:育肥全期,对照组、4 g组和7 g组河西绒山羊平均日增重分别为96.30、172.22和169.82 g·d^-1,4 g组和7 g组分别显著高于对照组(P<0.05),4 g组和7 g组无显著差异(P>0.05);屠宰性状,胴体重对照组、4 g组和7 g组分别为20.24、24.18和23.90 kg,无显著差异(P>0.05),屠宰率对照组、4 g组和7 g组分别为48.86%、51.21%和51.56%,4 g组和7 g组分别显著高于对照组(P<0.05),4 g组和7 g组无显著差异(P>0.05),胴体净肉重对照组、4 g组和7 g组分别为12.90、16.27和15.99 kg,4 g组和7 g组分别显著高于对照组(P<0.05),4 g组和7 g组无显著差异(P>0.05);肉质性状,大理石纹4 g组和7 g组分别显著高于对照组(P<0.05),4 g组和7 g组无显著差异(P>0.05),pH、熟肉率、失水率、嫩度、蒸煮损失对照组、4 g组、7 g组间均无显著差异(P>0.05)。日粮中添加牛至油可以显著提高河西绒山羊的育肥性能,本试验日粮中添加4 g宜生饲宝(含牛至精油52 mg)效果最佳。

关键词: 牛至油, 河西绒山羊, 生长性能, 屠宰性能, 胴体性状

Abstract: Oregano oil can significantly improve growth and immunity in domestic animals.The purpose of this research was to study the effects on growth performance, slaughtering performance and carcass quality of Hexi cashmere goat by adding oregano oil to their diets. The control group was fed a basic diet, while in the trial groups, 4 and 7 g additives with oregano essential oil 52 and 91 mg respectively were added to the basal diet, respectively. Animals both in control and treatments groups were the same age and weight. Each treatment had 3 replicates each consisting 5 goats.The feeding period was 90 days with monitoring undertaken every 30 days. The results showed that the average daily gain of Hexi cashmere goats in control group, 4 g group and 7 g group was 96.30, 172.22 and 169.82 g·d^-1, respectively, with the control group being significantly less than those groups supplemented with oregano oil (P<0.05). The carcass weights were 20.24, 24.18 and 23.90 kg in control, 4 and 7 g groups respectively. The slaughter rate, carcass net meat weight and the marbling of the longissimus dorsi muscle of 4 g group and 7 g group were significantly higher than them of control (P<0.05), but there was no difference between the oregano treatments groups (P>0.05). There were no differences in meat pH, cooked meat rate, water loss rate, tenderness and loose on cooking between treatments (P>0.05). Adding oregano oil to the diet improved the growth of Hexi cashmere goats; the optimum level was 52 mg·goat^-1·d^-1.

Key words: oregano oil, Hexi cashmere goat, production performance, carcass traits, mutton quality

姜辉, 雷赵民, 焦婷, 刘婷, 王建福, 李冲, 唐德富, 张建强. 日粮中添加牛至油对河西绒山羊育肥性能的影响研究[J]. 草业学报, 2018, 27(11): 142-149.

JIANG Hui, LEI Zhao-min, JIAO Ting, LIU Ting, WANG Jian-fu, LI Chong, TANG De-fu, ZHANG Jian-qiang. Effects of dietry oregano oil on growth and carcass traits of Hexi cashmere goats[J]. Acta Prataculturae Sinica, 2018, 27(11): 142-149.

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