论文部分内容阅读
(八)鱼类的长势与肥满度据逐月抽样资料分折(表八),围养鱼类生长较快,个体增长迅速,草鱼净增23倍,鳊鱼11倍,其他鱼净增:鲤鱼4.4倍,鲫鱼4.7倍,青鱼5.4倍,鲢鱼7.4倍,鳙鱼5.2倍。表八围拦内鱼的逐月生长情况(克/尾) 日平均个体增重:草鱼5.8克,鳊鱼1.1克,鲤鱼2.49克,鲫鱼1.42克,青鱼1.73克,鲢鱼2.69克,鳙鱼4.53克。由于鲤鱼品种不良,青鱼缺少动物性饲料,二者之生长优势并未充分显现。鲢、鳙鱼的长势与天然水体持平。不论个体生长或
(VIII) Growth and Filling of Fishes According to monthly sampling data (Table 8), the fishes in the area grew rapidly and the individuals grew rapidly. The net increase of grass carp was 23 times and that of anchovy 11 times. The net increase of other fish : 4.4 times of carp, 4.7 times of carp, 5.4 times of herring, 7.4 times of silver carp and 5.2 times of catfish. Monthly growth of fish in bar enclosures (g / t) Daily average individual gain: Grass carp 5.8 g, Catfish 1.1 g, Carp 2.49 g, Crucian carp 1.42 g, Blue carp 1.73 g, Silver carp 2.69 g, 4.53 grams. Due to poor carp species, herring lacked animal feed, the growth advantages of both did not fully apparent. Silver carp, bighead carp and natural water growth. Regardless of individual growth or