Friday, September 16, 2022
Monday, September 12, 2022
问题:《畜牧法》规定,畜禽批发市场选址,应当符合法律、行政法规和国务院...
Monday, September 12, 2022
Monday, September 12, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Monday, September 12, 2022
Friday, January 20, 2023
问题:请阐述哺乳仔猪的主要生理特点及饲养管理中相应需要做好的环节。...
Friday, September 16, 2022
Monday, September 12, 2022
Friday, July 7, 2023
Friday, September 16, 2022
问题:后备母猪第一胎膘情3怀孕92天,应该喂几公斤饲料?()...
Friday, September 16, 2022
Monday, September 12, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Monday, September 12, 2022
Monday, September 12, 2022
问题:睾丸是雄性家畜的主要性器官,又叫雄性腺,它的主要功能是:()。...
Friday, September 16, 2022
问题:猪重要的生产性状是指与生产密切相关的性状,概括起来有()。...
Monday, September 12, 2022