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饲养水平对E4×E5 (XX ;mas- +/mas- +×XX ;mas- 1/mas - 1)鲤鱼 (CyprinuscarpioL )F1代的性别决定有显著影响 ,高饲养水平和低饲养水平处理组中雌性比率分别为 5 1 5 %和 4 1%。遗传特性对E4 5×E5 (XX ;mas- 1/mas - +×XX ;mas- 1/mas- 1)F1代的影响比饲养水平的影响显著 ,在 2个处理组中只发现 1～ 2尾雌性。 2个饲养水平对E4×E4 5 (XX ;mas- +/mas- +×XX ;mas- 1/mas - +)F1代的影响差异显著 ,高饲养水平 2个处理组中雌性比率分别为 86 2 %和 76 8% ,而低饲养水平 2个处理组中雌性比率分别为 76 8%和 5 7 9% ,高饲养水平处理组的雌性比率与低饲养水平处理 1组 (雌性比率 5 7 9% )相比差异显著。 2个饲养水平条件下E4×E5和E4×E4 5后代的XX ;mas - 1/mas - +鲤鱼性别转化率之间没有显著差异。
The feeding level had a significant effect on the sex determination of the F1 generation of E4 × E5 (XX; mas- + / mas- + × XX; mas- 1 / mas- 1) carp (Cyprinus carpioL). In the high-feeding and low- The female ratio was 51.5% and 41% respectively. The effect of genetic characteristics on F1 generation of E4 5 × E5 (XX; mas-1 / mas - + × XX; mas-1 / mas-1) was more significant than that of the breeding level. Only 1 ~ 2 Tail females. The effects of two feeding levels on the F1 generation of E4 × E4 5 (XX; mas- + / mas- + × XX; mas- 1 / mas- +) were significantly different. The female ratios of the two feeding groups were 86 2% and 76.8%, respectively, while the females rates were 76.8% and 57.9% in the two feeding groups with low feeding levels respectively. The females in the high feeding level group and the low feeding level group 1 (female ratio 579 %) Compared to the significant difference. There was no significant difference in gender conversion rate of XX; mas - 1 / mas - + carp in E4 × E5 and E4 × E4 5 offspring under the two feeding levels.