Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man)
A study was carried out to determine the effects of cold shock and 17α-methyl testosterone hormone on growth in male morphotypes of giant freshwater prawn Macrobrachium rosenbergii. Juvenile males were exposed at 18 ± 0.25°C for 24 h with normal feed and cultured at 27 ± 0.7°C for 70 days as well as...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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John Wiley & Sons
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/59682/1/Effect%20of%20cold%20shock%20and%20hormone%20on%20growth%20and%20male%20morphotypes%20of%20freshwater%20prawn%2C%20Macrobrachium%20rosenbergii%20%28de%20Man%29.pdf |
| _version_ | 1796977149840719872 |
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| author | Banu, Mst. Rubia Christianus, Annie Mohd Ikhsan, Natrah Fatin Rajaee, Amy Halimah |
| author_facet | Banu, Mst. Rubia Christianus, Annie Mohd Ikhsan, Natrah Fatin Rajaee, Amy Halimah |
| author_sort | Banu, Mst. Rubia |
| collection | UPM |
| description | A study was carried out to determine the effects of cold shock and 17α-methyl testosterone hormone on growth in male morphotypes of giant freshwater prawn Macrobrachium rosenbergii. Juvenile males were exposed at 18 ± 0.25°C for 24 h with normal feed and cultured at 27 ± 0.7°C for 70 days as well as administrated feed with hormone separately at 400 mg kg−1 feed for the first 30 days of culture period (70 days). The growth (Mean ± SD) of male juveniles at harvest was closely homogenous in the cold shock (CLS) treated group; while it was heterogeneous in hormone-treated (MH) and control (CO) groups. Although total body weight of blue claw (BC) males was not significantly different in the controls and the treatments, the 2nd pereiopods (claw) weight and length of the BC was significantly lower in CLS (0.52 ± 0.05 g, 10.02 ± 0.65 cm) than that in the CO (0.71 ± 0.16 g, 12.53 ± 0.57 cm) and MH (0.75 ± 0.08 g, 12.85 ± 1.18 cm) treatments. Survival of prawns was similar in treatments. The morphotypes of male prawn were significantly different with 59% of BC males with small-sized claws in CLS and, 45% and 30% of BC males with large-sized claws in MH and CO respectively. Cold shock adversely affected male morphotypes of the prawn so that numbers of BC males with small-sized claw was the highest in CLS tank. However, the CLS treatment resulted in more uniform marketable prawns and suggested a high production of BC males in an all-male culture system. |
| first_indexed | 2024-03-06T09:35:59Z |
| format | Article |
| id | upm.eprints-59682 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:35:59Z |
| publishDate | 2016 |
| publisher | John Wiley & Sons |
| record_format | dspace |
| spelling | upm.eprints-596822018-03-16T02:33:41Z http://psasir.upm.edu.my/id/eprint/59682/ Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) Banu, Mst. Rubia Christianus, Annie Mohd Ikhsan, Natrah Fatin Rajaee, Amy Halimah A study was carried out to determine the effects of cold shock and 17α-methyl testosterone hormone on growth in male morphotypes of giant freshwater prawn Macrobrachium rosenbergii. Juvenile males were exposed at 18 ± 0.25°C for 24 h with normal feed and cultured at 27 ± 0.7°C for 70 days as well as administrated feed with hormone separately at 400 mg kg−1 feed for the first 30 days of culture period (70 days). The growth (Mean ± SD) of male juveniles at harvest was closely homogenous in the cold shock (CLS) treated group; while it was heterogeneous in hormone-treated (MH) and control (CO) groups. Although total body weight of blue claw (BC) males was not significantly different in the controls and the treatments, the 2nd pereiopods (claw) weight and length of the BC was significantly lower in CLS (0.52 ± 0.05 g, 10.02 ± 0.65 cm) than that in the CO (0.71 ± 0.16 g, 12.53 ± 0.57 cm) and MH (0.75 ± 0.08 g, 12.85 ± 1.18 cm) treatments. Survival of prawns was similar in treatments. The morphotypes of male prawn were significantly different with 59% of BC males with small-sized claws in CLS and, 45% and 30% of BC males with large-sized claws in MH and CO respectively. Cold shock adversely affected male morphotypes of the prawn so that numbers of BC males with small-sized claw was the highest in CLS tank. However, the CLS treatment resulted in more uniform marketable prawns and suggested a high production of BC males in an all-male culture system. John Wiley & Sons 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/59682/1/Effect%20of%20cold%20shock%20and%20hormone%20on%20growth%20and%20male%20morphotypes%20of%20freshwater%20prawn%2C%20Macrobrachium%20rosenbergii%20%28de%20Man%29.pdf Banu, Mst. Rubia and Christianus, Annie and Mohd Ikhsan, Natrah Fatin and Rajaee, Amy Halimah (2016) Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man). Aquaculture Research, 47 (12). pp. 3740-3746. ISSN 1355-557X; ESSN: 1365-2109 http://onlinelibrary.wiley.com/wol1/doi/10.1111/are.12823/abstract 10.1111/are.12823 |
| spellingShingle | Banu, Mst. Rubia Christianus, Annie Mohd Ikhsan, Natrah Fatin Rajaee, Amy Halimah Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) |
| title | Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) |
| title_full | Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) |
| title_fullStr | Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) |
| title_full_unstemmed | Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) |
| title_short | Effect of cold shock and hormone on growth and male morphotypes of freshwater prawn, Macrobrachium rosenbergii (de Man) |
| title_sort | effect of cold shock and hormone on growth and male morphotypes of freshwater prawn macrobrachium rosenbergii de man |
| url | http://psasir.upm.edu.my/id/eprint/59682/1/Effect%20of%20cold%20shock%20and%20hormone%20on%20growth%20and%20male%20morphotypes%20of%20freshwater%20prawn%2C%20Macrobrachium%20rosenbergii%20%28de%20Man%29.pdf |
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