2007•한국양식학회지Requires access
무지개송어, Oncorhynchus mykiss의 종묘생산에 관한 연구
백국기, 최영희, 이중철, Inshik Park, 김영길, 김두년, 이채성
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Abstract
This study examined the hatching rate of eyed-eggs and growth of fingerlings of USA strain rainbow trout, Oncorhynchus mykiss, which were transplanted on Nov. 17, 2005 from the USA for improvement of breeding. The diameter and weight of eyed-eggs were 4.95±0.34 ㎜ and 0.07±0.003 g, respectively. The eyed-eggs were hatched in 8 days later and hatching rates were 77.3~98.6%. After 56 days from hatching, the fingerlings grew to 4.0±0.7 ㎝ and 0.62 g in total length and body weight, respectively. The relationships between total length (TL) and elapsed days (ED) were expressed as TL=0.0366ED+1.8645 (r²=0.9285, n=350). The relationships between body weight (BW) and elapsed days (ED) were expressed as following; BW=0.0638e 0.0408ED (r²=0.9917, n=350). And survival of rainbow trout was 64.5±1.3% in 56 days after hatching.