ISBN: 9787802333529 - 蛋鸭生产实用技术 中央农业广播电视学校 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback. Pages Number: 75 Publisher: China Agricultural Science and Technology Press Pub. Date :2007-11-01 . Ducks practical technologies. including the cultivation of ducklings. and production of young ducks into a duck rearing management technology. integrated the basic disease control measures. duck. site selection. planning and duck form the basis of knowledge about . Contents: one. the cultivation of ducklings (a) of the brood before the preparation (b) of the duckling. …