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acceleration of ripening
相关语句
  相似匹配句对
     The Acceleration of Maotai
     茅台加速度
短句来源
     Studies of Spray Mixture of Hymexazol with Chemical Fertilizer on the Acceleration Ripening and Increasing Yield in Rice
     土菌消(hymexazol)与化肥喷施对水稻催熟、增产作用的研究
短句来源
     EM Algorithm and Its Acceleration
     EM算法及其加速
短句来源
     Angular Acceleration Measurement
     角加速度测量
短句来源
     ③The continuity of acceleration.
     3.加速的连贯性如何。
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  acceleration of ripening
Often, ethylene treatment must increase disease development simply through its acceleration of ripening or senescence.
      


The excision of Monodon's eye stalk (Left or right eye) does induce its maturity and spawning. It also leads to high survial rate without affecting its normal eating and mating activity. No adverse effect was found if their eye stalk (right or left) or eyes are takan off.Excision of Monodon's eye stalk plays an important part in inducing its maturity and spawning. Best results were obtained in the following experimental conditions.sex: femaleLength: above 210mmWeight: above 140gWater tempreture: 27-31 degree...

The excision of Monodon's eye stalk (Left or right eye) does induce its maturity and spawning. It also leads to high survial rate without affecting its normal eating and mating activity. No adverse effect was found if their eye stalk (right or left) or eyes are takan off.Excision of Monodon's eye stalk plays an important part in inducing its maturity and spawning. Best results were obtained in the following experimental conditions.sex: femaleLength: above 210mmWeight: above 140gWater tempreture: 27-31 degree centigrataSalinity: 30-35‰pH: 7.2-8.5Illumination: 100-500 luxes(blue or green)Dissolved oxyen: above 4mg/LExternal environment: without interference and, with slow circulated runningwaerFeed: shellfish, 10% each dayThe prawn will reach the peak of maturity within 15 to 35 days after eye stalk excision. This experiment showed that the rate of acceleration of ripening is 57.4 % (highest can be 1(30%); average fertilization rate is 59% (highest is 88.9%); number of eggs produced generally depends on prawn's size (the bigger the prawn, the larger amount of eggs it will lay). Usually 2 to 4 hundred thousand eggs 10 to 30% less than the natural mature prawn; The average hatch rate is 72.3%, maximum 97.1%. Prawns with excision of eye stalk may spawn 2 to 3 times the maximun 5 times, but moult easily so that they lose spermalophores when environment is not stable.

本实验结果表明,摘除斑节对虾(Penaeus monodon Fabficius)左或右侧眼柄,可以诱导卵巢发育成熟产卵,且成活率高,亦不影响正常摄食和交配活动。不摘除眼柄和摘除两侧眼柄,迄今尚未见到卵巢发育之虾。 实验还表明:选择雌虾体长210mm、体重140g以上,在水温27—3l℃,盐度30—35‰,pH值7.2—8.5,弱光(光照度100—500Ix),光质为蓝或绿光,溶解氧4mg/L以上,外界环境尽量避免干扰,微循环水流动,饵料以贝类,日投喂量10%的条件下培养,催熟效果好。 本实验也为在对虾属中进行种间杂交培育优良品种提供了依据。

 
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