彭泽鲫♀×兴国红鲤♂四倍体子代与彭泽鲫子代生长性能比较
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国家自然科学基金项目 (31372180)


Comparation of growth performance between tetraploid offspring of Carassius auratus pengsenensis♀×Cyprinus carpiouar singuonensis ♂ and Carassius auratus pengsenensis offspring
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    摘要:

    为评估彭泽鲫(Carassius auratus pengsenensis)♀×兴国红鲤(Cyprinus carpiouar singuonensis)♂四倍体子代的生长性能,探讨彭泽鲫新品种的开发及应用前景,以彭泽鲫♀×兴国红鲤♂四倍体子代及彭泽鲫雌核发育子代为研究对象,通过180 d饲养试验,统计孵化后0、30、60、90、120、150、180 d时各平行组体质量、体长数据,分析二者生长性能。结果显示:在180 d试验过程中,四倍体子代体质量、体长分别高出彭泽鲫子代30.18%(P<0.05)、7.70%(P<0.05);二者绝对增重率呈现先升高、再降低、再升高的趋势,在30~60 d达到最大值,90~120 d时降到最小值,且0~90、120~180 d时,二者差异显著;绝对增长率表现出相同趋势,但在90 d后二者无显著差异;对比二者的增积量发现除90~150 d以外,二者增积量均有显著差异,在30~60 d时达到最大值,即0.010 5±0.001 2;30~180 d试验过程中,四倍体子代肥满度与彭泽鲫子代差异极显著;拟合二者不同时期体质量与体长关系得到生长曲线,四倍体子代生长曲线为W=0.0320L2.991 5(R2=0.977 9),彭泽鲫子代为W=0.0307L2.994 1(R2=0.982 7),曲线拟合度较好。以上结果表明:彭泽鲫♀×兴国红鲤♂四倍体子代表现出较好的生长性能,具有培育彭泽鲫新品种的潜力及推广价值。

    Abstract:

    To explore the growth performance of tetraploid offspring of Pengze crucian carp (Carassius auratus pengsenensis)♀×Xingguo red carp (Cyprinus carpiouar singuonensis)♂,and to explore the development and application prospects of the new Pengze crucian carp variety,the body weight and length data of tetraploid offspring of Pengze crucian carp (PX) and gynogenetic offspring of Pengze carp (PP) at 0,30,60,90,120,150 and 180 d after hatching were taken through the 180 d feeding experiments,and then the growth performance of the two offspring were analyzed. The results showed that during the 180 d experiment,the body weight and body length of PX were significantly different from those of PP. At the end of the experiment,the body weight and body length of PX were 30.18% and 7.70% higher than those of the PP. The absolute weight gain rate of the two groups showed a trend of first increasing,then decreasing and then increasing,reached the maximum at 30-60 d,reached the minimum at 90-120 d,and the difference between them was significant at 0-90 d and 120-180 d (P<0.05).The absolute growth rate showed the same trend,but there was no significant difference between the two groups after 90 d. It was found that the accumulation volume of the two offspring was different except for 90-150 d (P<0.05),and it reached the maximum value of 0.010 5±0.001 2 at 30-60 d. During 30-180 d,the coefficient of fatness of PX was significantly different from that of PP,indicating that the tetraploid offspring were more obese. The growth curve was obtained by fitting the relationship between body weight and body length in different periods,and the growth curve of PX and PP were:W=0.0320L2.991 5(R2=0.977 9), and W=0.0307L2.9941,R2=0.982 7,respectively. To sum up,the hybrid tetraploid offspring of Pengze crucian carp ♀× Xingguo red carp♂show good growth performance,which has the potential of cultivating new variety of Pengze crucian carp and the value of promotion.

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张庆飞,操文杰,廖寿力,魏怡飞,王卫民.彭泽鲫♀×兴国红鲤♂四倍体子代与彭泽鲫子代生长性能比较[J].华中农业大学学报,2021,40(6):134-140

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  • 收稿日期:2021-05-07
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  • 在线发布日期: 2021-11-30
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