中山大学学报（自然科学版）2013，Vol.52Issue(1)：94-99,6.
温度调控诱导尼罗罗非鱼仔鱼雄性化的研究
Masculinization by Temperature Control in Larvae Nile Tilapia,Oreochromis niloticus L.
摘要
Abstract
The tilapia (Oreochromis spp. ) is very important for fishery in China. China is the first in the amount of product and export of tilapia in the world every year. The period of tilapia' s maturation is very short. So the reproduction is very fast and waste a lot of energy. The style of mono-male cultivation can resolve the problems. In this paper, the researches have been concentrated on the male rates under different water temperature condition in larva Nile Tilapia ( Oreochromis niloticus L. ). The possibility of making mono-male by temperature controlling has been discussed from two aspects: the effective temperature and the disposal duration time. The larvae were treated from 7DPH. Two factors were considered; the water temperature (20℃, 28 ℃, 36 ℃) and the disposal duration time (7 - 14DPH, 7 -21DPH, 7 -28DPH). They were taken into account by orthogonal experimental design. The main results are as follows:at the aspect of getting mono-male by temperature control, when the temperature is 36℃ ,the male rates in the three disposal duration (7 - 14DPH; 7 -21DPH; 7 -28DPH) are significant higher than the other treatment schemes ( P < 0. 05 ) , the male rates are 93. 85% , 96. 00% and 96. 92% respectively. In order to evaluate the effects of masculinization, the growth rates and the survival rates have been studied too. When the treatment schemes (temperature + disposal duration time) are 36 ℃ +7 - 14DPH, the AGR and survival rate are no significant difference with the Control Group ( P > 0. 05) . In general, the best treatment schemes are 36 ℃ +7 - 14DPH, the average male rate is 93. 85% and the highest male ratio is 96. 96%. The growth rate and the survival rate in that treatment schemes are normal too.关键词
尼罗罗非鱼/仔鱼/温度调控/雄性化Key words
Oreochromis niloticus L. / larva/ temperature contol/ masculinization分类
生物科学引用本文复制引用
陈兴汉,刘晓春,蒙子宁,张勇,叶卫,林浩然..温度调控诱导尼罗罗非鱼仔鱼雄性化的研究[J].中山大学学报（自然科学版）,2013,52(1):94-99,6.基金项目
国家自然科学基金资助项目(30571425) （30571425）
广东省科技计划资助项目(2004A20105001) （2004A20105001）
