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...

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Main Authors: Francis, Nwachi Oster, Esa, Yuzine
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
http://psasir.upm.edu.my/id/eprint/44115/
https://pubmed.ncbi.nlm.nih.gov/28779746/
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spelling my.upm.eprints.441152022-02-12T02:53:23Z 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 Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
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
http://psasir.upm.edu.my/id/eprint/44115/
https://pubmed.ncbi.nlm.nih.gov/28779746/
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