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- Eyestalk_ablation abstract "Eyestalk ablation is the removal of one (unilateral) or both (bilateral) eyestalks from a crustacean. It is routinely practiced on female shrimps (or prawns) in almost every marine shrimp maturation or reproduction facility in the world, both research and commercial. The aim of ablation under these circumstances is to stimulate the female shrimp to develop mature ovaries and spawn.Most captive conditions for shrimp cause inhibitions in females that prevent them from developing mature ovaries. Even in conditions where a given species will develop ovaries and spawn in captivity, use of eyestalk ablation increases total egg production and increases the percentage of females in a given population that will participate in reproduction. Once females have been subjected to eyestalk ablation, complete ovarian development often ensues within as little as 3 to 10 days.The most commonly accepted theory of why eye ablation reduces this inhibition is that a gonad inhibitory hormone (GIH) is produced in the neurosecretory complexes in the eyestalk. This hormone occurs in nature in the non-breeding season and is absent or present only in low concentrations during the breeding season. The reluctance of most shrimp to routinely develop mature ovaries in captivity is a function of elevated levels of GIH, and eyestalk ablation lowers the high haemolymph titer of GIH. The effect of eyestalk ablation is not on a single hormone such as GIH, but rather affects several physiological processes. Besides the GIH evidence, another hypothesis suggests that eyestalk ablation also reduces light intensity and thereby induces ovarian maturation. In the banana prawn (Fenneropenaeus merguiensis, syn. Penaeus merguiensis), dim light favours ovarian maturation and spawning. The exact mechanism of eyestalk ablation on the ovarian maturation is not conclusive.It has been reported that in the tiger prawn (Penaeus monodon), the eyestalks fully regenerate in less than 6 months.".
- Eyestalk_ablation thumbnail CSIRO_ScienceImage_2844_A_Prawn.jpg?width=300.
- Eyestalk_ablation wikiPageID "37771359".
- Eyestalk_ablation wikiPageLength "5413".
- Eyestalk_ablation wikiPageOutDegree "18".
- Eyestalk_ablation wikiPageRevisionID "681418317".
- Eyestalk_ablation wikiPageWikiLink Ablation.
- Eyestalk_ablation wikiPageWikiLink Category:Animal_welfare.
- Eyestalk_ablation wikiPageWikiLink Category:Crustaceans.
- Eyestalk_ablation wikiPageWikiLink Cauterization.
- Eyestalk_ablation wikiPageWikiLink Cauterizing.
- Eyestalk_ablation wikiPageWikiLink Crustacean.
- Eyestalk_ablation wikiPageWikiLink Eyestalk.
- Eyestalk_ablation wikiPageWikiLink Fenneropenaeus_merguiensis.
- Eyestalk_ablation wikiPageWikiLink Gonad.
- Eyestalk_ablation wikiPageWikiLink Haemolymph.
- Eyestalk_ablation wikiPageWikiLink Hemolymph.
- Eyestalk_ablation wikiPageWikiLink Ligature_(medicine).
- Eyestalk_ablation wikiPageWikiLink Moult.
- Eyestalk_ablation wikiPageWikiLink Moulting.
- Eyestalk_ablation wikiPageWikiLink Ovary.
- Eyestalk_ablation wikiPageWikiLink Pain_in_invertebrates.
- Eyestalk_ablation wikiPageWikiLink Penaeus_monodon.
- Eyestalk_ablation wikiPageWikiLink Shrimp_farming.
- Eyestalk_ablation wikiPageWikiLink Spawn_(biology).
- Eyestalk_ablation wikiPageWikiLink Syn..
- Eyestalk_ablation wikiPageWikiLink Synonym_(taxonomy).
- Eyestalk_ablation wikiPageWikiLink Tiger_prawn.
- Eyestalk_ablation wikiPageWikiLink File:CSIRO_ScienceImage_2844_A_Prawn.jpg.
- Eyestalk_ablation wikiPageWikiLinkText "Eyestalk ablation".
- Eyestalk_ablation wikiPageWikiLinkText "eyestalk ablation".
- Eyestalk_ablation hasPhotoCollection Eyestalk_ablation.
- Eyestalk_ablation wikiPageUsesTemplate Template:Reflist.
- Eyestalk_ablation subject Category:Animal_welfare.
- Eyestalk_ablation subject Category:Crustaceans.
- Eyestalk_ablation hypernym Removal.
- Eyestalk_ablation type Company.
- Eyestalk_ablation comment "Eyestalk ablation is the removal of one (unilateral) or both (bilateral) eyestalks from a crustacean. It is routinely practiced on female shrimps (or prawns) in almost every marine shrimp maturation or reproduction facility in the world, both research and commercial.".
- Eyestalk_ablation label "Eyestalk ablation".
- Eyestalk_ablation sameAs m.0nhhjkw.
- Eyestalk_ablation sameAs Q5422871.
- Eyestalk_ablation sameAs Q5422871.
- Eyestalk_ablation wasDerivedFrom Eyestalk_ablation?oldid=681418317.
- Eyestalk_ablation depiction CSIRO_ScienceImage_2844_A_Prawn.jpg.
- Eyestalk_ablation isPrimaryTopicOf Eyestalk_ablation.