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Asian Journal of Biological Sciences
  Year: 2019 | Volume: 12 | Issue: 3 | Page No.: 437-441
DOI: 10.3923/ajbs.2019.437.441
 
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Effect of Eyestalk Ablation on the Ovarian Maturation Stages of Blue Swimming Crab, Portunus pelagicus
Mhd Ikhwanuddin , Mohd-Fadhil Adnan, Syahnon Mohamad and Ambok Bolong Abol-Munafi

Abstract:
Background and Objective: The development of domesticated crab is an important aspect for further sustain ability of seed production and broodstock enhancement. An induction of gonad maturation is important to increase the broodstock used for hatchery seed production. This study was designed to determine the effect of eyestalk ablation on the ovarian maturation stages in P. pelagicus in term of the gonadosomatic index (GSI), mean of oocyte diameter and then were compared using one-way analysis of variance. Materials and Methods: Three group of treatments were set up included control (without any eyestalk ablation), unilateral and bilateral eyestalk ablation. Crabs were then cultured for 30 days in the culture rearing tank systems immediately after ablation and GSI with mean of oocyte diameter were calculated. Results: Mean value of GSI was 2.21, 3.39 and 3.31% in control, unilateral eyestalk ablated and bilateral eyestalk ablated, respectively. In addition, the oocyte development was 175.77, 187.44 and 214.08 μm, respectively. Statistical analysis did not show any difference obtained in GSI of control, unilateral and bilateral ablated (p>0.05) but statistically different (p<0.05) found in oocyte diameter. Conclusion: It was concluded that eyestalk ablation affected the oocyte diameter of ovarian maturation stages of P. pelagicus.
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 RELATED ARTICLES:
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How to cite this article:

Mhd Ikhwanuddin, Mohd-Fadhil Adnan, Syahnon Mohamad and Ambok Bolong Abol-Munafi, 2019. Effect of Eyestalk Ablation on the Ovarian Maturation Stages of Blue Swimming Crab, Portunus pelagicus. Asian Journal of Biological Sciences, 12: 437-441.

DOI: 10.3923/ajbs.2019.437.441

URL: https://scialert.net/abstract/?doi=ajbs.2019.437.441

 
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