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用配合饲料养鱼,其饲料成本占养殖成本的60%以上。如何降低饲料成本,已成为池塘养殖提高效益的关键。1放养优质鱼种具有优良性状的鱼种对饲料的消化吸收率较高,而且鱼的生长速度快,其饲料系数则低。因此放养鱼种一定要选择遗传性状优良、鳞鳍完整、体色鲜明、体质健壮的鱼种。?
With compound feed fish, feed costs accounted for more than 60% of farming costs. How to reduce the cost of feed has become the key to improving the efficiency of pond aquaculture. 1 stocking quality fish species of fine traits of fish digestion and absorption of feed higher, and the fish grow faster, the feed coefficient is low. Therefore, stocking species must choose good genetic traits, fins fin integrity, body color distinct, robust physique species. ?