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April 2007 to November 2008 in Shayang County Procambarus shrimp on synchronous ovarian development and the outdoor environment suitable for spawning, and obtained the following results: 1.17α-hydroxyprogesterone Procambarus shrimp for synchronous ovarian development the impact of using drip, injection, soaking treatment in three different ways (hereinafter referred to as drip method, injection, immersion method) 17α-hydroxyprogesterone, study its effect on Procambarus shrimp and development of ovarian synchronization. Three methods to varying degrees, can promote Procambarus shrimp synchronous ovarian development, maturation rate in ovarian synchronization at least compared to the control group increased by 10%, of which the highest rate of ovarian maturation synchronization immersion 50% for the three methods The comparison results are: immersion> injection> drip method> control group. Immersion method, injection method promotes Procambarus shrimp spawning synchronization, synchronous spawning rate results: Soak France 32.5%, 20% of injection, drip method of 17.5%, 17.5% in the control group, integrated synchronous spawning rate, eventually spawning mortality rate compared with females drawn: immersion> injection> drip method> control group. 2 burns Eyestalk method Procambarus shrimp research and development of ovarian synchronization burns left, right, bilateral Eyestalk Procambarus shrimp for synchronization and development of ovarian its maturation rate synchronous ovarian development results: burns pair Side Eyestalk France 45%, the left eye burns handle is 40%, 30% burns on the right, the control group was 25%, by t-test showed that the experimental group and the control group was significantly (P <0.05). Three methods can promote Procambarus shrimp spawning synchronization, integrated synchronous spawning rate, eventually spawning rate drawn: burns bilateral Eyestalk France> burns left Eyestalk France> burn right Eyestalk France> control group . 3 electrocautery Eyestalk method Procambarus shrimp research and development of ovarian synchronization electrocautery left, right, bilateral Eyestalk right Procambarus shrimp and development of ovarian synchronization, synchronize their ovarian maturation rate results: Bilateral eyestalk electrocautery was 50%, electrocautery left Eyestalk 35%, electrocautery right eye pattern of 30% in the control group was 25%, by t-test showed that the experimental group and control group difference was significant (P <0.05). All three methods promoted Procambarus shrimp synchronous spawning, integrated synchronous spawning rate, eventually spawning rate of females mortality results: electrocautery bilateral Eyestalk France> electrocautery left Eyestalk France> electrocautery right Eyestalk France> control group. 4 Procambarus shrimp suitable spawning environmental effects of different artificial cave group Procambarus shrimp spawning of results: asbestos cave group Procambarus shrimp berried highest rate, eventually spawning rate of 75%, followed by brick cave group, 65% of the pipeline again cave group 62.5%, the lowest rate of non-berried cave group was 45%, by t-test showed that the experimental group and the control group was significantly (P <0.05). Different plants set group Procambarus shrimp spawning affect the results: the use of water hyacinth plants group Procambarus shrimp spawning rate up to 75%, followed by 62.5% in the water group, peanut plants, no plants group was 27.5% Worst by t test showed that the experimental group and the control group was significantly (P <0.05).
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