延安地区虹鲑养殖实验初报

THE FIRST EXPERIMENTAL REPORT ON SALMON BREADING IN YANAN DISTRICT

在面织为18平方米的一个石砌池中进行稚鱼养殖实验,经过78天养殖,使1902尾上浮82天,平均体重2.61克的稚鱼体重平均达到19.85克,成活率为97.3%,达到了理论计划的要求。证明延安地区水库表、中、底层水及绝大部分林区河流适宜虹鲑养殖。本文阐述了实验过程中的各项技术资料。

This experiment yeas carried out by breeding salmon in a 18m^2 stone- built pond.After 78 days and by making 1902 baby salmon float on the surface water for 82 days,the average weight of the salmon grew from 2.61g to 19.85g and the survival rate was 97.3 percent,which has reached the planned theoretical requirement.The experiment has proved that the reservoir water and streams in most of the forest areas in Yan'an Distri- ct are suitable for salmon breeding,This report discribes all the techn- ological datum used in the experiment.