牛羊饲粮中添加( )可以抑制瘤胃中的脲酶活性,减缓尿素分解氨的速度,提高尿素的利用率,减少尿素中毒的现象。 The addition of ( ) to the rations of cattle and sheep can inhibit the urease activity in the rumen, slow down the rate of ammonia decomposition of urea, improve the utilization of urea and reduce the phenomenon of urea poisoning.