CAJ | 학술논문

利用大黄鱼野生群体与选育F1养殖群体杂交及群体内自繁，获得选育F1（♀）×野生（♂）、野生（♀）×选育F1（♂）、野生（♀）×野生（♂）和选育F1（♀）×选育F1（♂）4个组合的子代，对其卵径、油球径以及2～10月龄全长、体长和体质量进行分析比较。试验结果表明，选育F1（♀）×野生（♂）卵径最大，并与野生（♀）×野生（♂）之间存在显著性差异（P＜0．05），4个群体油球径差异不显著（P＞0．05）；体质量是大黄鱼群体间杂交主要表现的生长性状，9月龄体质量双亲杂种优势最大为14．48％，野生（♀）×选育F1（♂）体质量杂种优势最大为25．68％；野生（♀）×选育F1（♂）的全长特定生长率为1．92％／d ，体质量为5．60％／d及选育F1（♀）×野生（♂）体长为1．99％／d ，是4个群体中最大特定生长率；拟合体长（L）与体质量（m）关系，选育F1（♀）×野生（♂）为 m＝0．0277L2．8045（r2＝0．9980），野生（♀）×选育F1（♂）为 m＝0．0210 L2．9287（r2＝0．9993），野生（♀）×野生（♂）为 m＝0．0236 L2．8592（r2＝0．9916），选育F1（♀）×选育F1（♂）为 m＝0．0228 L2．8946（r2＝0．9984）。试验结果表明，通过野生群体与选育养殖群体的杂交能提高大黄鱼子代的经济性状。
이용대황어야생군체여선육F1양식군체잡교급군체내자번，획득선육F1（♀）×야생（♂）、야생（♀）×선육F1（♂）、야생（♀）×야생（♂）화선육F1（♀）×선육F1（♂）4개조합적자대，대기란경、유구경이급2～10월령전장、체장화체질량진행분석비교。시험결과표명，선육F1（♀）×야생（♂）란경최대，병여야생（♀）×야생（♂）지간존재현저성차이（P＜0．05），4개군체유구경차이불현저（P＞0．05）；체질량시대황어군체간잡교주요표현적생장성상，9월령체질량쌍친잡충우세최대위14．48％，야생（♀）×선육F1（♂）체질량잡충우세최대위25．68％；야생（♀）×선육F1（♂）적전장특정생장솔위1．92％／d ，체질량위5．60％／d급선육F1（♀）×야생（♂）체장위1．99％／d ，시4개군체중최대특정생장솔；의합체장（L）여체질량（m）관계，선육F1（♀）×야생（♂）위 m＝0．0277L2．8045（r2＝0．9980），야생（♀）×선육F1（♂）위 m＝0．0210 L2．9287（r2＝0．9993），야생（♀）×야생（♂）위 m＝0．0236 L2．8592（r2＝0．9916），선육F1（♀）×선육F1（♂）위 m＝0．0228 L2．8946（r2＝0．9984）。시험결과표명，통과야생군체여선육양식군체적잡교능제고대황어자대적경제성상。
The egg diameter ,oil globule diameter ,total length ,body length and body weight 2-10 month old were compared among F1 crossed between wild and selective breeding large yellow croaker Larimich‐thys crocea including first filial generation (F1 ) (♀) × wild (♂) ,wild (♀) × first filial generation (F1 ) (♂),wild(♀)×wild(♂)andfirstfilialgeneration(F1)(♀)×firstfilialgeneration(F1)(♂).Itwas found that the first filial generation (F1 ) (♀ ) × wild large yellow croaker (♂) had the eggs with the maximal diameter ,significant difference from that in wild (♀ ) × wild (♂) (P< 0 .05) .No significant difference in the oil globule diameter was observed in the four groups . There was the best growth (14 .48% ) in body weight in the 9‐month‐old F1 hybrid of their wild parents ,and the best growth heterosis (25 .68% ) in the group of wild (♀) × first filial generation (F1 ) (♂) .The specific growth rate in total length and body weight were found to be 1 .92% /d and 5 .60% /d in wild (♀)× first filial generation (F1 ) (♂) ,respectively .There was 1 .99 % /d of specific growth rate in body length in first filial generation (F1 ) (♀)× wild (♂) ,showing the best growth among these four groups .The relationship between fit‐ting body length (L) and body weight (W ) was as the following :m=0 .0277L2 .8045 (r2 =0 .9980) in first fil‐ialgeneration(F1)(♀) × wild(♂);m=0.0210L2.9287(r2 =0.9993)inwild(♀)×firstfilialgeneration (F1) (♂);m= 0 .0236 L2.8592(r2 =0 .9916)in wild (♀)× wild (♂);and m=0 .0228L2.8946(r2 =0 .9984)in first filial generation (F1 ) (♀ ) × first filial generation (F1 ) (♂) .The findings indicate that hybrid be‐tween wild population and cultured population leads to improvement of economic characters of filial genera‐tion of large yellow croaker .