Ten Hostein-Friesian bull calves, which were healthy, sucking, androughly the same age and body weight, were chosen in the eight days experiment of arti-ficial water intoxication, and self control method was adopted.

• 选用10头健康、未断奶、日龄和体重相近的黑白花公犊牛，采用试验前后自身对照比较，每日自饮1：3的掺奶水2次，进行为期8d的水中毒人工诱病试验。