ISBN: 9787109071841 - 科学饲养奶牛技术问答【正版图书 放心购买】 (1 risultati)

paperback. Condizione: New. Paperback Pages Number: 321 Language: Chinese. Scientific feeding cows technical Q & A describes the basic knowledge of various aspects of dairy production and technical issues. the main contents include how to select the cows. the dairy cow's nutritional needs and feeding and management methods. the dairy cow breeding and breeding measures. dairy design and environmental control methods. modulation technology of dairy feed and forage cultivation technology. milk and dairy knowledge. cow dise.…