中药饲料添加剂对荷斯坦公牛血液生化指标及生长发育的影响

摘要

研究中药饲料添加剂对荷斯坦公牛生长发育及血液生化指标的影响。结果表明，中药饲料添加剂能显著增加荷斯坦公牛的体重，添加中药量1％和2％的组平均日增重比空白对照组分别提高了39．91％和52．13％，饲料转化率比空白对照组分别提高了28．61％和34．28％，头均日增重收入比空白对照组分别提高51．58％和60．35％；血清中的葡萄糖（GLU）、尿素氮（BUN）随着药量的增加而增加；中药饲料添加剂可降低牛血清中胆固醇（CT）的含量及血清酶如谷丙转氨酶（ALT）、谷草转氨酶（AST）、碱性磷酸酶（ALP）、乳酸脱氢酶（LDH）等的活性。%This paper aimed to study the effects of different amount of traditional Chinese medicine feed ad-ditive on growth and blood biochemical indexes in Holstein bulls.The results showed that the addition of traditional Chinese medicine feed additives can significantly increase the weight gain of Holstein bulls. Compared to control group,with addition of 1% and 2% of traditional Chinese medicine feed additives,the average daily weight gain increased by 39.91% and 52.13%,feed conversion ratio increased by 28.61%and 34.28%,and the average daily gain increased by 51.58% and 60.35%.The serum glucose (GLU)and urea nitrogen (BUN)increased with the increase of the quantity of the traditional Chinese medicine feed additives.The traditional Chinese medicine feed additives can reduce the content of bovine serum cholester-ol (CT)and decrease serum enzyme activities such as alanine aminotransferase (ALT),aspartate amin-otransferase (AST),alkaline phosphatase (ALP),lactate dehydrogenase (LDH).