Data/hora: 01/06/2024 07:01:19

Provedor de dados: | 5
País: | France
Título: | Egg production in the turbot (Scophthalmus maximus) in relation to broodstock management
Autores: | Omnes, Marie-helene; Normant, Yvon; Suquet, Marc; Fauvel, Christian.
Data: | 1992-06
Ano: | 1992
Resumo: | Egg production data from individual hand stripped female turbot were collected and analysed over several consecutive spawning seasons, on natural or shifted conditions. Egg quantity, egg viability and number of spawns were examined from one spawning season to the other, and inside the spawning season. These parameters seemed to increase from a year to the next one, except for the oldest fishes. Spawns were spread over a three-month period and occurred at the same time in the period in successive seasons for most females. Egg production seemed related to the feeding level and the earliness of spawning season appeared depended on the growth rate. Without sand substrate in tanks, injuries could increase therefore no significant differences were observed in broodstock productivity. As the spawners were reared at 13°C±1°C just prior and during spawning period, and examined fivefold a week to detect ovulation, viability rate of eggs reached 77% (Fauvel et al., 1992; Omnes et al., 1991). A good knowledge of spawner features should be a husbandry tool to forecast spawning.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00199/31018/29423.pdf

http://archimer.ifremer.fr/doc/00199/31018/

Editor: | Broodstock Management and Egg and Larval Quality, International Conference, University of Scotland, June 23-27 1992, Stirling, Scotland.
Formato: | application/pdf

Fonte:

info:eu-repo/semantics/openAccess

restricted use