Isbn: 9787536450639 - 养猪关键技术 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2003 Pages: 335 Language: Chinese in Publisher: Sichuan Science and Technology Publishing House pig key technologies for rural and moderate-scale specialized pig production. introduces various aspects of pig production involved in the theoretical basis and key technologies. theories about the user-friendly. system utilities technical presentations. Book is nine chapters. is the introduction. pig superior varieties with the option of using the technology. the pig breeding .…