Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus
The present study aimed at developing all-male Nile tilapia using17α-methyl testosterone(17α-MT) along with its growth and feed utilization performances. Three days old Niletilapia fry were stocked in plastic jars with 5 L capacity installed in four fiber glass tanks. The fry were fed with 0, 30, 6...
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Hawassa University
2023-12-01
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| Series: | East African Journal of Biophysical and Computational Sciences |
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| Online Access: | https://www.Ajol.Info/index.php/eajbcs/article/view/261119 |
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| author | Belete Berhanu Kassaye BalkewWorkagegn Natarajan Pavanasam |
| author_facet | Belete Berhanu Kassaye BalkewWorkagegn Natarajan Pavanasam |
| author_sort | Belete Berhanu |
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The present study aimed at developing all-male Nile tilapia using17α-methyl testosterone(17α-MT) along with its growth and feed utilization performances. Three days old Niletilapia fry were stocked in plastic jars with 5 L capacity installed in four fiber glass tanks. The fry were fed with 0, 30, 60, and 100 mg MT/kg diets for 30 days. Later, the fry were shifted to hapas installed in a pond and then, reared for four months separately. The fish were fed with the control diet. The results showed that the highest male population(93.6%) was observed in the fish treated with a 60 mg MT/kg diet, while the lowest(82.6%) was observed in the fish treated with a 30 mg MT/kg diet. The results also showed that the fish fed with a 60 mg MT/kg diet had significantly higher mean body weight (24.1±1.40 g), specific growth rate (2.5±0.10%), feed conversion ratio (1.3±0.10), and protein efficiency ratio (0.63±0.11) than the untreated fish treated (control) group. In conclusion, a 60 mg MT/kg diet can be considered as an optimal and economically viable dose for Nile tilapia sex reversal along with its optimum growth and feed utilization performances.
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| format | Article |
| id | doaj-art-648553bdacf74d8f968becba181bbf31 |
| institution | Kabale University |
| issn | 2789-360X 2789-3618 |
| language | English |
| publishDate | 2023-12-01 |
| publisher | Hawassa University |
| record_format | Article |
| series | East African Journal of Biophysical and Computational Sciences |
| spelling | doaj-art-648553bdacf74d8f968becba181bbf312025-02-08T19:51:00ZengHawassa UniversityEast African Journal of Biophysical and Computational Sciences2789-360X2789-36182023-12-0142Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticusBelete Berhanu0Kassaye BalkewWorkagegn1Natarajan Pavanasam2Department of Aquatic Sciences, Fisheries and Aquaculture, College of Natural and Computational Sciences, Hawassa University, P. O. BOX: 05, Hawassa, EthiopiaDepartment of Aquatic Sciences, Fisheries and Aquaculture, College of Natural and Computational Sciences, Hawassa University, P. O. BOX: 05, Hawassa, EthiopiaCentre for Aquaculture Research and Education (CARE), College of Natural and Computational Sciences, Hawassa University, P. O. BOX:05, Hawassa, Ethiopia The present study aimed at developing all-male Nile tilapia using17α-methyl testosterone(17α-MT) along with its growth and feed utilization performances. Three days old Niletilapia fry were stocked in plastic jars with 5 L capacity installed in four fiber glass tanks. The fry were fed with 0, 30, 60, and 100 mg MT/kg diets for 30 days. Later, the fry were shifted to hapas installed in a pond and then, reared for four months separately. The fish were fed with the control diet. The results showed that the highest male population(93.6%) was observed in the fish treated with a 60 mg MT/kg diet, while the lowest(82.6%) was observed in the fish treated with a 30 mg MT/kg diet. The results also showed that the fish fed with a 60 mg MT/kg diet had significantly higher mean body weight (24.1±1.40 g), specific growth rate (2.5±0.10%), feed conversion ratio (1.3±0.10), and protein efficiency ratio (0.63±0.11) than the untreated fish treated (control) group. In conclusion, a 60 mg MT/kg diet can be considered as an optimal and economically viable dose for Nile tilapia sex reversal along with its optimum growth and feed utilization performances. https://www.Ajol.Info/index.php/eajbcs/article/view/261119Sex-reversal; Methyltestosterone; Mono-sex production; Hapa; Nile tilapia |
| spellingShingle | Belete Berhanu Kassaye BalkewWorkagegn Natarajan Pavanasam Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus East African Journal of Biophysical and Computational Sciences Sex-reversal; Methyltestosterone; Mono-sex production; Hapa; Nile tilapia |
| title | Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus |
| title_full | Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus |
| title_fullStr | Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus |
| title_full_unstemmed | Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus |
| title_short | Effect of 17α-methyl testosterone on sex reversal and growth performance of Nile tilapia,Oreochromis niloticus |
| title_sort | effect of 17α methyl testosterone on sex reversal and growth performance of nile tilapia oreochromis niloticus |
| topic | Sex-reversal; Methyltestosterone; Mono-sex production; Hapa; Nile tilapia |
| url | https://www.Ajol.Info/index.php/eajbcs/article/view/261119 |
| work_keys_str_mv | AT beleteberhanu effectof17amethyltestosteroneonsexreversalandgrowthperformanceofniletilapiaoreochromisniloticus AT kassayebalkewworkagegn effectof17amethyltestosteroneonsexreversalandgrowthperformanceofniletilapiaoreochromisniloticus AT natarajanpavanasam effectof17amethyltestosteroneonsexreversalandgrowthperformanceofniletilapiaoreochromisniloticus |