【作者】 王晓清； 王志勇； 何湘蓉；

【Author】 WANG Xiaoqing1,2, WANG Zhiyong2, HE Xiangrong1 (1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; 2. Fisheries College of Jimei University, Xiamen 361021, Fujian, China)

【机构】 湖南农业大学动物科技学院； 集美大学水产学院；

【摘要】 通过大黄鱼15个半同胞家系鱼苗对低盐、低溶氧和低pH值水体的抗性试验,采用半同胞组内相关法,对大黄鱼耐各环境因子遗传力进行了估计。结果表明:大黄鱼40日龄鱼苗在水体溶氧4.76～1.21mg/L时2.5～10h以内全部死亡,盐度8.05～9.03‰时1～30h内全部死亡,pH值4.49～5.2时1～8h内全部死亡;对耐低溶氧、低盐和低pH值的遗传力估计值分别为0.23、0.10和0.23,t检验表明对耐低溶氧和低pH值的遗传力估计达到显著水平,耐低盐遗传力的估计不显著。更多还原

【Abstract】 Test on the tolerance to low-salinity, low-oxygen and low-pH water in 15 half sib family of Pseudosciaena crocea, and the estimation of heritability of tolerance to the every environmental factors were performed. The results showed that the fries at 40 days all died between 2.5-10 h as the oxygen changed from 4.76 to 1.21 mg/L, 1-30 h as the salinity from 8.05 to 9.03‰, 1-8 h as the value of pH from 4.49 to 5.20. The heritability of tolerance to low-oxygen, low-salinity, low-pH were 0.23, 0.10, 0.23, respectively. The heritability on low-oxygen and low-pH reached prominent level but low-salinity by t checkout.更多还原