Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana
The principal aim of this research was to produce triploid offspring of O. niloticus, applying warm thermic shocks (41A-42 oC) to eggs during 3,5-4 min., 3,5 mino after fertilization, or cold shocks (10,8-11,3 oC) to oocytes during one hour, 5 min after their fertilization. The best tissue to confir...
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doaj-3db5192999674c9c8e1c9be88533b6ae2020-11-24T21:16:19ZengUniversidad Nacional de ColombiaActa Biológica Colombiana0120-548X1900-16491995-01-0129436619054Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea GhanaHector A. Martínez D.0Cesar Celis M.1Plutarco Cala2Universidad Nacional de ColombiaUniversidad Nacional de Colombiauniversidad Nacional de ColombiaThe principal aim of this research was to produce triploid offspring of O. niloticus, applying warm thermic shocks (41A-42 oC) to eggs during 3,5-4 min., 3,5 mino after fertilization, or cold shocks (10,8-11,3 oC) to oocytes during one hour, 5 min after their fertilization. The best tissue to confirm triploids was kidney and brain of larvae and alevines. Then, the survival of fertilized eggs and growth rate were determined. The results show that the warm and cold shocks are efficient to produce 100% triploids, with different rates of survival. Also, that 25,5% oftspring was deformed when cold shocks were applyed, and 32,5% deformities with warm shocks. There were not significant difterences in growth between triploid and diploid populations after three months of age.https://revistas.unal.edu.co/index.php/actabiol/article/view/20678crecimiento poblacionesoreochromistriploidíapiscicultura |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hector A. Martínez D. Cesar Celis M. Plutarco Cala |
spellingShingle |
Hector A. Martínez D. Cesar Celis M. Plutarco Cala Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana Acta Biológica Colombiana crecimiento poblaciones oreochromis triploidía piscicultura |
author_facet |
Hector A. Martínez D. Cesar Celis M. Plutarco Cala |
author_sort |
Hector A. Martínez D. |
title |
Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana |
title_short |
Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana |
title_full |
Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana |
title_fullStr |
Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana |
title_full_unstemmed |
Viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea Ghana |
title_sort |
viabilidad y crecimiento de poblaciones diploides y triploides de tilapia nilotica, oreochromis niloticus, línea ghana |
publisher |
Universidad Nacional de Colombia |
series |
Acta Biológica Colombiana |
issn |
0120-548X 1900-1649 |
publishDate |
1995-01-01 |
description |
The principal aim of this research was to produce triploid offspring of O. niloticus, applying warm thermic shocks (41A-42 oC) to eggs during 3,5-4 min., 3,5 mino after fertilization, or cold shocks (10,8-11,3 oC) to oocytes during one hour, 5 min after their fertilization. The best tissue to confirm triploids was kidney and brain of larvae and alevines. Then, the survival of fertilized eggs and growth rate were determined. The results show that the warm and cold shocks are efficient to produce 100% triploids, with different rates of survival. Also, that 25,5% oftspring was deformed when cold shocks were applyed, and 32,5% deformities with warm shocks. There were not significant difterences in growth between triploid and diploid populations
after three months of age. |
topic |
crecimiento poblaciones oreochromis triploidía piscicultura |
url |
https://revistas.unal.edu.co/index.php/actabiol/article/view/20678 |
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