Natural and Induced (Eyestalk Ablation) Molt Cycle in Freshwater Rice Field Crab Oziothelphusa Senex Senex
Natural and Induced (Eyestalk Ablation) Molt Cycle in Freshwater Rice Field Crab Oziothelphusa Senex Senex
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淡水稻田蟹 Oziothelphusa Senex Senex 的自然和诱导（眼柄切除）蜕皮周期
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Sreenivasula Reddy Pamanji
中科院分区：
文献类型：
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作者：
Ramach;R. R. Pamuru;Neelima Hosani;Sreenivasula Reddy Pamanji
在甲壳类动物中，蜕皮是使旧的外骨骼脱落的过程，并且是新的外骨骼体生长所需的。甲壳类动物的蜕皮过程因物种而异，也因环境条件而异。本文对淡水蟹Oziothelphusa senex senex的蜕皮周期进行了研究。本研究所选蟹的大小为30 ± 2 g。自然蜕皮周期由蜕皮间期（C1、C2、C3和C4）、蜕皮前期（D1、D2、D3和D4）、蜕皮期（E）和蜕皮后期（A1、A2、B1和B2）组成。最大的舞台在O。换羽期占90.0%，蜕皮期占0.01%。用摘除眼柄法（ESX）研究了中华绒螯蟹的诱导蜕皮周期，发现摘除眼柄后28 d，60.71%的雄蟹和52.0%的雌蟹蜕皮，说明眼柄原理在调节蜕皮过程中起作用。
In crustaceans, molting is the process of shedding old exoskeleton and is required for the somatic growth of new exoskeleton for its growth. The molting processes in crustaceans vary from one species to other and also vary with the environmental conditions. In the present study the molt cycle of freshwater crab Oziothelphusa senex senex was studied. The size of crabs selected for the study is 30 ± 2 g. The natural molt cycle is consisting of intermolt (C1, C2, C3 and C4), premolt (D1, D2, D3 and D4), ecdysis (E) and post molt (A1, A2, B1 and B2) stages were measured and the percentage of each stage in the molt cycle was calculated. The biggest stage in the O. senex senex molt cycle is intermolt stage (90.0%) and shortest one is ecdysis (0.01%). Induced molt cycle was studied by eyestalk extirpation (ESX) and observed that 60.71% of male crabs and 52.0% female crabs were molted after 28th day of extirpation suggesting the role of eyestalk principle in regulating the molting process.