Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius
Eyestalk‐ablated and non‐ablated pond‐reared Penaeus monodon Fabricius of two sizes (116·3 ± 2·8g and 67·9 ± 1·0g body weight (BW)) were injected with crude thoracic ganglion extract from 'spent spawners’(0·4mg/g and 1·0mg/g shrimp respectively). Controls (ablated and non‐ablated groups) receiv...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
1991
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| Online Access: | http://psasir.upm.edu.my/id/eprint/114096/1/114096.pdf |
| _version_ | 1825940437018345472 |
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| author | Har, Chan Hooi Halim, A.S. Siti-Sara, A.R. |
| author_facet | Har, Chan Hooi Halim, A.S. Siti-Sara, A.R. |
| author_sort | Har, Chan Hooi |
| collection | UPM |
| description | Eyestalk‐ablated and non‐ablated pond‐reared Penaeus monodon Fabricius of two sizes (116·3 ± 2·8g and 67·9 ± 1·0g body weight (BW)) were injected with crude thoracic ganglion extract from 'spent spawners’(0·4mg/g and 1·0mg/g shrimp respectively). Controls (ablated and non‐ablated groups) received either equivalent amounts of crude muscle extract or crustacean saline. In another experiment, non‐ablatéd shrimps (67·4 ± 1·8g BW) were injected with crude gonad extract from 'spent spawners'. The controls received an equal volume of crustacean saline. Significant differences (P < 0·05) in the gonadosomatic index and the gonad index in relation to the carapace length were detected between eyestalk‐ablated and non‐ablated shrimps; the larger shrimps showing a greater difference following treatments with muscle and thoracic ganglion extracts. However, no significant differences (P > 0·05) were detected between the thoracic ganglion‐treated groups and the controls in either the eyestalk‐ablated or non‐ablated shrimps. Nor were significant differences (P > 0·05) observed between the gonad‐treated group and the control and between the two control groups receiving crustacean saline and crude muscle extract. |
| first_indexed | 2024-12-09T02:27:42Z |
| format | Article |
| id | upm.eprints-114096 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-12-09T02:27:42Z |
| publishDate | 1991 |
| publisher | Wiley |
| record_format | dspace |
| spelling | upm.eprints-1140962024-12-03T02:15:36Z http://psasir.upm.edu.my/id/eprint/114096/ Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius Har, Chan Hooi Halim, A.S. Siti-Sara, A.R. Eyestalk‐ablated and non‐ablated pond‐reared Penaeus monodon Fabricius of two sizes (116·3 ± 2·8g and 67·9 ± 1·0g body weight (BW)) were injected with crude thoracic ganglion extract from 'spent spawners’(0·4mg/g and 1·0mg/g shrimp respectively). Controls (ablated and non‐ablated groups) received either equivalent amounts of crude muscle extract or crustacean saline. In another experiment, non‐ablatéd shrimps (67·4 ± 1·8g BW) were injected with crude gonad extract from 'spent spawners'. The controls received an equal volume of crustacean saline. Significant differences (P < 0·05) in the gonadosomatic index and the gonad index in relation to the carapace length were detected between eyestalk‐ablated and non‐ablated shrimps; the larger shrimps showing a greater difference following treatments with muscle and thoracic ganglion extracts. However, no significant differences (P > 0·05) were detected between the thoracic ganglion‐treated groups and the controls in either the eyestalk‐ablated or non‐ablated shrimps. Nor were significant differences (P > 0·05) observed between the gonad‐treated group and the control and between the two control groups receiving crustacean saline and crude muscle extract. Wiley 1991-12 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/114096/1/114096.pdf Har, Chan Hooi and Halim, A.S. and Siti-Sara, A.R. (1991) Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius. Aquaculture Research, 22 (4). pp. 463-471. ISSN 1355-557X; eISSN: 1365-2109 https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2109.1991.tb00759.x 10.1111/j.1365-2109.1991.tb00759.x |
| spellingShingle | Har, Chan Hooi Halim, A.S. Siti-Sara, A.R. Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius |
| title | Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius |
| title_full | Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius |
| title_fullStr | Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius |
| title_full_unstemmed | Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius |
| title_short | Effects of eyestalk ablation, thoracic ganglion extract and gonad extract from 'spent spawners’on ovarian maturation in pond-reared shrimps, Penaeus monodon Fabricius |
| title_sort | effects of eyestalk ablation thoracic ganglion extract and gonad extract from spent spawners on ovarian maturation in pond reared shrimps penaeus monodon fabricius |
| url | http://psasir.upm.edu.my/id/eprint/114096/1/114096.pdf |
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