论文部分内容阅读
本文初步研究了池塘养殖日本鳗鲡初孵仔鳗生长与卵黄消耗的关系。在水温(24±1)℃下,仔鳗发育至7~8日龄,口、肠道、肛门、胸鳍等器官形成。仔鳗全长与卵黄的关系为:(1)0~18 d仔鳗全长随日龄的增加而有不同程度的增长;其中0~7 d生长快,平均日增长0.57 mm/d,8~10 d,平均日增长0.13 mm/d,11~18 d,平均日增长0.09mm/d;(2)0~10 d,仔鳗以内源性营养方式吸收营养,仔鳗全长与卵黄消耗呈指数相关,可用公式Y=1.5879e1.4371L(R2=0.8979)表示,仔鳗卵黄消耗与日龄可用公式Y=0.0852e-0.5547L(R2=0.9702)表示;10 d后仔鳗卵黄消失。
In this paper, the relationship between growth and egg yolk consumption of Japanese eel Anguilla japonica in pond culture was preliminary studied. In the water temperature (24 ± 1) ℃, eel anguilla development to 7 to 8 days old, mouth, intestine, anus, pectorals and other organs form. The relationship between the length of eel and egg yolk was: (1) The length of eel from 0 d to 18 d increased with the increase of age, of which, the growth rate was 0.57 mm / d on average from 0 to 7 days The average daily growth was 0.13 mm / d and the average daily growth was 0.09 mm / d from 11 to 18 days. (2) From 0 to 10 days, young eel absorbed nutrition by endogenous nutrition, Exponential correlation can be used to formula Y = 1.5879e1.4371L (R2 = 0.8979), ejaculation consumption and age of eel can be used to formula Y = 0.0852e-0.5547L (R2 = 0.9702) said that after 10 days eel yolk disappeared.