那些没有被检查过的和被人类习惯性认为可以消费的完整的牛的畜体也被禁止出售了，除非那头牛小于30月龄或其脑部和脊髓已经被切除。
The entire carcass of cattle not inspected and passed for human consumption is also prohibited, unless the cattle are less than 30 months of age, or the brains and spinal cords have been removed.
根据生长发育和后裔性能测定选择18月龄后备种牛是渤海黑牛选择的重点。
It was important to select replacement bulls of 18-month-old based on their growth and development and progeny testing in bo-hai Black Cattle.
牛丛，字表龄，僧孺之子。
应用推荐