Title | Induced spawning of the common snook (Centropomus undecimalis) in captivity using GnRH-a implants |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Contreras-García, MJ, Contreras-Sánchez, WM, Hernández-Vidal, U, Mcdonald-Vera, A |
Journal | Ecosistemas y Recursos Agropecuarios |
Volume | 2 |
Issue | 6 |
Pagination | 357 - 362 |
Date Published | 2015 |
Keywords | centropomus undecimalis, GnRH-a, induction to spawning, quality eggs, snook |
Abstract | Culture of C. undecimalis shows great potential as this species tolerates handling and adapts easily to captivity. However, the difficulty in achieving spawning in captivity is a major obstacle for the development of commercial scale farming. Spawning of common snook was achieved using GnRH-a implants in single 100 and 200 µg doses per fish; control group specimens received no hormone and did not spawn. Both GnRH-a trial doses resulted in spawning with up to 100% fertilization rates per experimental unit, and a range of 60 – 76% per treatment. A 50 – 100% hatching rate was obtained and larvae were between 1.56 ± 0.08 and 1.98 ± 0.05 mm total length after yolk sac absorption. |
URL | http://ri.ujat.mx/bitstream/20.500.12107/1095/1/-304-670-A.pdf |
Notice of Publication Number |