ISBN: 9787508214795 - 福寿螺实用养殖技术 (1 resultados)

paperback. Condición: New. Language:Chinese.Paperback. Pub Date: 2003-3-1 Pages: 98 Publisher: Golden Shield Press snails meat is delicious. nutritious. delicious food on the table. Snails fast growth. reproduction and strong. easy to keep. low cost. high yield. there is a potential for development of aquaculture object. The book details the biological characteristics of snails. the grade and multi-stage rounds raised stocking density. artificial propagation and breeding. feeding and food. the effects of different leve.…