ISBN: 9787534988288 - 生态养鸭实用新技术 王松 黄昆鹏 魏刚才 9787534988288 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2017-12-01 Pages: 336 Language: Chinese Publisher: henan science and technology press in recent years. there have been great development of animal husbandry in China. the number of livestock and poultry has become the world's highest. but there are also animal products quality good and bad are intermingled and such problems as environmental pollution. this directly affects the stable development of animal husbandry in our country and the improvement of economic benefit.…