Female calves are kept to replenish the herd and male calves are usually sent to veal crates where they live a miserable existence until their slaughter .
The contaminated water forced the family to sell its herd of 60 dairy cows and take jobs off the farm .
由于水源受到污染,她们只好卖掉60头奶牛的畜群,到农场外找工作。
Herd infections were already reported in canada , australia , argentina , ireland , britain and norway .
牧群感染已经出现在了加拿大、澳大利亚、阿根廷、爱尔兰、英国以及挪威。
In fact , the pkmzeta molecules appeared to herd themselves , like army rangers occupying a small peninsula , into precisely the fingerlike connections among brain cells that were strengthened .