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作 者:何玉英[1,2] 李健[1] 刘萍[1] 王学忠 王清印[1]
机构地区:[1]中国水产科学研究院黄海水产研究所,山东青岛266071 [2]中国海洋大学生命学院,山东青岛266003 [3]山东省昌邑市海丰水产养殖有限责任公司,山东昌邑261000
出 处:《中国海洋大学学报(自然科学版)》2009年第3期413-420,共8页Periodical of Ocean University of China
基 金:国家科技支撑计划项目(2006BAD01A13);国家农业公益性行业科研专项(nyhyzx07-42);国家自然科学基金项目(40706052)资助
摘 要:采用4种生长曲线模型对中国对虾“黄海1号”和野生群体F1,代15项形态性状的生长规律进行了拟合,以三次函数模型的拟合优度(R0)最高;采用三次函数模型拟合的2个群体各形态性状的生长曲线、拐点月龄以及拐点体重(各形态性状长度)结果表明,中国对虾“黄海1号”的拐点月龄为2.87(拐点体重14.98g),野生群体F1代的拐点月龄为4.05(拐点体重26.26g);中国对虾“黄海1号”各形态性状的拐点月龄分布在0.51~3.07之间,达到最大生长速度的顺序分别为:头胸甲长〉第1腹节宽〉头胸甲高〉腹1高〉头胸甲宽〉体长〉全长〉腹节5长〉腹节3和4长〉尾节长〉腹节2长〉腹节1长〉腹节6长;野生群体F1代除第2腹节长的拐点月龄为0.45之外,其它性状的拐点月龄分布在2.38~3.08之间,达到最大生长速度的顺序分别为:腹节2长〉腹节1长〉腹节3长〉腹节4长〉头胸甲高〉腹节5长〉头胸甲宽〉全长〉腹1高〉腹1宽〉尾节长=头胸甲长=体长〉腹节6长,除第1和第2腹节长2个性状外,野生群体F,代的其它性状均比中国对虾“黄海1号”发育迟缓了1个月左右。Four growth models were used to fit the growth patterns of morphological characters in the new variety "Huanghai NO. 1" and the first generation of wild population in Fenneropenaeus chinensis based on fifteen morphological characters. The squared multiple correlation coefficient( R2) of the Cubic growth model was higher than that of the Linear model, the Power model and the Exponential model, so the Cubic growth model was selected to investigate the growth pattern and age in months at inflexion. The results showed that the ages in months at the inflexion of body weight of "Huanghai NO. 1" and the first generation of wild population were 2.87(body weight at inflexion was 14.98 g) and 4.05(body weight at inflexion was 26.26 g), respectively. The ages in months at the inflexion of other morphological characters of "Huanghai NO. 1" were from 0.51 to 3.07. CL had the most rapid growth rate, followed by AW, CH, AH, CW, BL, FL, AL5, AL3, AL4, TL, AL2 and ALl, and AL6 had the slowest growth rate. The ages in months at the inflexion of other morphological characters of the first generation of wild population were from 2.38 to 3.08, except that of AL2, and the order of achieving the most rapid growth rate was AL2, AL1, AL3, AL4, CH, AL5, CW, FL, AH, AW, TL, CL, BL, and AL6, whose growths were all delayed by about one month compared with those of "Huanghai NO. 1" except AL2 and AL1.
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