bull barn

The sperm hyaluronidase from white and black pibald fine breed bullswas isolated and purified by ammonium sulphate fractionation and sephadaxchromatography.

中国黑白花优良种公牛精子透明质酸酶经硫酸铵分级沉淀和 Sephadex 柱层析分离纯化,得到一个电泳纯品,活力纯化40倍。

Controlled trials were conducted to investigate the effects of two thawing solutions on bull′s sperm survival time and integrity acrosome rate.

9%柠檬酸钠 ,对照组 )对肉用种公牛颗粒冻精进行解冻对照试验。

The objective of the present study was to test the effect of Cd in the concentration range from 10 to 1 000 μmol/L, in vitro, on the membrane and DNA integrity, motility, and ability of sperm to undergo acrosomal exocytosis in Holstein bull spermatozoa.

本文研究的目的是测试Cd在10~1000μmol/L的浓度范围在体外对荷斯坦(Holstein)公牛精子膜和DNA完整性、活动率和精子顶体胞吐能力的影响。

The fattening test with“Cattle sheep Fei”for Qinchuan bull was conducted under the condition of shelter feeding.

利用“牛羊肥”添加剂 ,在舍饲的条件下 ,对秦川公牛的育肥实验表明 :实验期实验组的总增重、日增重、胴体重、屠宰率比对照组分别高出 41。