Isbn: 9787534545726 - 奶牛生产关键技术速查手册 (1 risultati)

paperback. Condizione: New. Language:Chinese.Pages Number: 214 Publisher: Jiangsu Science and Technology Press Pub. Date :2006-01. the series are mainly characterized by the following aspects: First. to seize the more popular current aquaculture industry. good grazing livestock breeding efficiency. ie cows. sheep. rabbits. geese and forage production. As omnivores. pig. because of its livestock production has a pivotal role. and in recent years significantly increased the breeding efficiency. it will also be included in. …