ISBN: 9787503851735 - 猪病诊断和防治关键技术问答 【正版书籍】 (1 resultados)

paperback. Condición: New. Paperback. Pub Date: 2008 Pages: 101 in Publisher: China Forestry Publishing House of the swine industry after decades of development. have made great progress. intensive. increasing degree of the scale. Pig production performance has been greatly improved. both sow slaughter hogs. or various stages of pig survival rate. feed efficiency. lean has significantly improved. In the summer of 2006. especially after the highly pathogenic blue ear disease has occurred in China's Jiangxi. Guangdong. H.…