YY super males have better spermatic quality than XY males in red tilapia Oreochromis niloticus
| Autor: | David Salirrosas, Julio Leon, Monica Arqueros - Avalos, Linda Sanchez - Tuesta, Fernanda Rabanal, Zulita Prieto |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Scientia Agropecuaria, Vol 8, Iss 4, Pp 349-355 (2017) |
| Druh dokumentu: | article |
| ISSN: | 2077-9917 2306-6741 |
| Popis: | The influence of sex - related chromosomal arrangement in an YY and XY population of Oreochromis niloticus males was investigated in this study. A better spermatic mobility, motility, viability, confluence and less abnormality were found in double Y - chromosome males (YY - males), compared to XY - males; however, this better spermatic quality did not correlate with the body weight of individuals which was significantly better in XY - males. This study establishes the influence of YY - re lated sequences over spermatic quality and indicates the usefulness of the YY technology as a strategy to obtain better fish breeders and genetically male individuals for a tilapia farming program. |
| Databáze: | Directory of Open Access Journals |
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