ISBN: 9787801637987 - 养殖技术基础（下） (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2004 Pages: 195 Language: Chinese in Publisher: China Environmental Science Press book details the technical methods of poultry farming. including a number of aspects. such as poultry appearance. varieties. breeding and other aspects. when farmers make the correct method to achieve an unexpected effect. there will be a windfall. Contents: Chapter pig keeping the appearance of the first section of pigs and pigs category second pig biological characteristics of Section III .…