Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks
In the present study, the effect of cold shock on fertilized eggs of Oreochromis mossambicus was during triploid production. Two males (150? 224g) and six gravid females (150 g to 264g) were collected. The females were injected with ovulin at a dosage rate of 0.5ml kg (-1), the eggs were stripped in...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Journal of Environmental Biology
2016
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/44115/1/Comparative%20growth%20and%20survival%20of%20diploid%20and%20triploid%20of%20mozambique%20tilapia%20%28oreochromis%20mossambicus%29%20reared%20in%20indoor%20tanks.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
oai:psasir.upm.edu.my:44115 |
|---|---|
| record_format |
eprints |
| spelling |
oai:psasir.upm.edu.my:44115 http://psasir.upm.edu.my/id/eprint/44115/ Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks Francis, Nwachi Oster Esa, Yuzine In the present study, the effect of cold shock on fertilized eggs of Oreochromis mossambicus was during triploid production. Two males (150? 224g) and six gravid females (150 g to 264g) were collected. The females were injected with ovulin at a dosage rate of 0.5ml kg (-1), the eggs were stripped into a dry bowl, fertilised with milt, divided into two groups (A and B) and incubated. After three minutes, group A was cold shocked at 50C for a period for 5 min, while group B was incubated normally. Tilapia larvae hatchlings were triplicated and stocked at a density of 200 larvae / liter in the aquaria for four weeks. Results showed that triploid fish had a lower hatchability (58%) and survival rate (47%) than diploid fish (of 85 and 70%, respectively), but a higher specific growth rate of 1.097 as compared to diploid at 0.931. While the improved growth rates have great commercial applications. Further research should be conducted to improve the lower hatchability and survivability of triploid tilapia? Journal of Environmental Biology 2016 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/44115/1/Comparative%20growth%20and%20survival%20of%20diploid%20and%20triploid%20of%20mozambique%20tilapia%20%28oreochromis%20mossambicus%29%20reared%20in%20indoor%20tanks.pdf Francis, Nwachi Oster and Esa, Yuzine (2016) Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks. Journal of Environmental Biology, 37 (4 spec.). pp. 839-843. ISSN 0254-8704; ESSN: 2394-0379 https://pubmed.ncbi.nlm.nih.gov/28779746/ 10.1111/j.1365-2109.2004.01182.x |
| institution |
UPM IR |
| collection |
UPM IR |
| language |
English |
| description |
In the present study, the effect of cold shock on fertilized eggs of Oreochromis mossambicus was during triploid production. Two males (150? 224g) and six gravid females (150 g to 264g) were collected. The females were injected with ovulin at a dosage rate of 0.5ml kg (-1), the eggs were stripped into a dry bowl, fertilised with milt, divided into two groups (A and B) and incubated. After three minutes, group A was cold shocked at 50C for a period for 5 min, while group B was incubated normally. Tilapia larvae hatchlings were triplicated and stocked at a density of 200 larvae / liter in the aquaria for four weeks. Results showed that triploid fish had a lower hatchability (58%) and survival rate (47%) than diploid fish (of 85 and 70%, respectively), but a higher specific growth rate of 1.097 as compared to diploid at 0.931. While the improved growth rates have great commercial applications. Further research should be conducted to improve the lower hatchability and survivability of triploid tilapia? |
| format |
Article |
| author |
Francis, Nwachi Oster Esa, Yuzine |
| spellingShingle |
Francis, Nwachi Oster Esa, Yuzine Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| author_facet |
Francis, Nwachi Oster Esa, Yuzine |
| author_sort |
Francis, Nwachi Oster |
| title |
Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| title_short |
Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| title_full |
Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| title_fullStr |
Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| title_full_unstemmed |
Comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| title_sort |
comparative growth and survival of diploid and triploid of mozambique tilapia (oreochromis mossambicus) reared in indoor tanks |
| publisher |
Journal of Environmental Biology |
| publishDate |
2016 |
| url |
http://psasir.upm.edu.my/id/eprint/44115/1/Comparative%20growth%20and%20survival%20of%20diploid%20and%20triploid%20of%20mozambique%20tilapia%20%28oreochromis%20mossambicus%29%20reared%20in%20indoor%20tanks.pdf |
| _version_ |
1819296621083492352 |
| score |
13.4562235 |