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1991～1992年对澳大利亚北方的热带大型虾红螯螯虾在室内进行了孵化实验。6个玻璃铜水槽放养40～190g 的性成熟红螯螯虾10尾/m~2,雄雌比率1∶2,水温保持在28±1℃。1991年采用自然光照,1992年控制光照。采用自然光照,每天光照不足12h,月产卵率为15%;每天光照在12h 以上,月产卵率在35%以上。由于产卵高峰期在5～7月,故春季放养为时过晚。翌年,将光照由12月的10h 光照14h 黑暗调节至2月的14h 光照10h 黑暗,且一直持续至7月。红螯螯虾产卵率随光照期的延长而提高,且产卵高峰期提前在3～5月,月产卵率高达50%。5月份以后,即使水温和光照期一直不变,产卵率将直线下降。所产卵数与雌虾个体规格呈正相关。40～190g 的雌虾平均产仔虾7.3尾/g 体重,卵色用于预测卵的发育期。
From 1991 to 1992, incubation experiments were conducted indoors of tropical giant crayfish Larus census in northern Australia. 6 glass copper sink stocked 40 ~ 190g of sexually mature chelataria crawfish 10 / m ~ 2, male and female ratio of 1: 2, the water temperature was maintained at 28 ± 1 ℃. Natural light was used in 1991 and light was controlled in 1992. The use of natural light, less than 12h daily light, the monthly egg production rate of 15%; daily light in more than 12h, the monthly egg production rate of 35% or more. As the spawning peak in May to July, so stocking in the spring too late. The following year, the light from the December 10h light 14h dark adjust to February 14h light 10h dark, and continued until July. The results showed that the spawning rate of C. chensinensis increased with the prolongation of light period, and the peak of spawning period was 3 ~ 5 months in advance with the monthly egg production rate as high as 50%. After May, the spawning rate will plummet even though the water temperature and the light period have not changed. The number of eggs laid and the size of individual female was positively correlated. The females of 40-190 g averaged 7.3 litters / g body weight of juvenile shrimp and the egg color was used to predict the developmental period of eggs.