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当前位置: 首页 > 文章 > 不同粗饲料对秦川肉牛生长发育及血液生化指标的影响 西北农林科技大学学报(自然科学版) 2016,44 (9) 10-16
Position: Home > Articles > Influence of different roughages on growth and blood biochemical indices of Qinchuan cattle Journal of Northwest A & F University(Natural Science Edition) 2016,44 (9) 10-16

不同粗饲料对秦川肉牛生长发育及血液生化指标的影响

作  者：
冯兴龙;赵春平;焦锋;昝林森
单  位：
西北农林科技大学动物科技学院
关键词：
秦川肉牛;桑叶;苜蓿;麦草
摘  要：
【目的】研究不同粗饲料对秦川肉牛生长发育和血液生化指标的影响。【方法】选取20头14月龄体质量无显著性差异的秦川肉公牛(无阉割),按饲喂的粗饲料种类随机分为苜蓿组(苜蓿+青贮+精料)、桑叶组(桑叶+青贮+精料)、麦草组(麦草+青贮+精料)、对照组(青贮+精料),每组5头,饲喂相应的饲料,于育肥前期(14~15月龄)、中期(16~17月龄)、后期(18~19月龄)分别取样,测定不同粗饲料对秦川肉牛日增重和血液生化指标的影响。【结果】桑叶组秦川肉牛日增重显著高于其他3组(P<0.05),苜蓿组秦川肉牛日增重显著高于麦草组和对照组(P<0.05),麦草组和对照组肉牛日增重差异不显著(P>0.05);桑叶组秦川肉牛血清葡萄糖、谷丙转氨酶和甘油三酯含量显著高于其他3组(P<0.05),尿素含量显著低于其他3组(P<0.05),各试验组秦川肉牛血清总蛋白、白蛋白、球蛋白、白球比、钙和磷的含量差异不显著(P>0.05)。【结论】以桑叶、苜蓿作为秦川肉牛肥育粗饲料的优质干草,育肥效果最好,其中桑叶处理组优于苜蓿处理组(P<0.05)。桑叶在肉牛育肥过程中完全可以替代苜蓿,而在以"青贮+精料"为基础的日粮中添加麦草,对改善肉牛肥育效果意义不大。
译  名：
Influence of different roughages on growth and blood biochemical indices of Qinchuan cattle
作  者：
FENG Xinglong;ZHAO Chunping;JIAO Feng;ZAN Linsen;College of Animal Science and Technology,Northwest A&F University;National Beef Cattle Improvement Center in China;
关键词：
Qinchuan cattle;;mulberry leaf;;alfalfa;;wheat straw
摘  要：
【Objective】This study investigated the influence of different roughages on growth and blood biochemical indices of Qinchuan cattle.【Method】A total of 20 14-month-old Qinchuan cattle(no castration)without significant difference in weight were randomly divided into alfalfa group(alfalfa+silage+high concentrated food),mulberry group(mulberry+silage+high concentrated food),wheatgrass group(wheatgrass+silage+high concentrated food)and control group(silage+high concentrated food),with 5bulls in each group.Samples were collected at the early fattening period(14to 15months),the middle fattening period(16to 17months)and the last fattening period(18to 19 months)to determine the effects of roughage on growth and blood biochemical indexes.【Result】The daily gain of mulberry group was significantly higher than that of other groups(P<0.05).The daily gain of alfalfa group was significantly higher than that of wheatgrass group and control group(P<0.05).The daily gain of wheatgrassgroup had no significant difference compared to control group(P>0.05).In mulberry group,the contents of glucose,alanine aminotransferase and triglyceride were significantly higher than those of other groups(P<0.05),but the content of blood urea nitrogen was significantly lower than that of other groups(P<0.05).The contents of serum total protein,albumin,globulin,calcium and phosphorus and albumin to globulin ratio had no significant difference between groups(P>0.05).【Conclusion】Mulberry leaf and alfalfa had the best effect as hay for Qinchuan cattle,and mulberry leaf was even better(P<0.05).Mulberry leaf can completely replace alfalfa in cattle fattening,and while adding wheat straw into based diet"silage and concentrate"had limited effect.

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