Titre :	Contribution à la reproduction contrôlée du Black Bass (Micropterus salmoides) (Lcepéde, 1802)
Type de document :	texte imprimé
Auteurs :	Imen Bouyakoub, Auteur ; Chalabia Chabet Dis, Auteur
Editeur :	Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza-
Année de publication :	024/2025
Importance :	p.47
Présentation :	couv. en noir et blanc ., ill., fig.
Format :	30 cm
Accompagnement :	CD
Note générale :	Bibliographie: p40-45. Annexes: p47.
Langues :	Français (fre)
Catégories :	Hydrobiologie
Mots-clés :	Disinfection  Hormonal stimulation  Oocytes  Physico-chemical parametrers  Sex ratio.
Index. décimale :	551.37
Résumé :	Largemouth bass is a carnivorous fish native to the lakes and rivers of North America that was first introduced to Algeria in 1956. This species is particularly interesting from both an economic and ecological standpoint. The present work aims to artificially reproduce the Largemouth bass using hormones and recreating the natural spawning conditions in captivity to promote egg-laying. 84 breeders were caught at the El Mehouane dam with a sex ratio of 0.58 using a monofilament gill net with a mesh size of 45 mm. 20 breeders were chosen for hormonal injection based on the health status of the individuals. The breeders underwent a prophylactic bath of methylene blue and a saline solution. After treatment, sexing, weighing, measuring, and checking the maturity state of the oocytes, the males and females were injected with HCG and pituitary gland. To collect eggs, artificial nests were set up after disinfection. The latency period was estimated. The physicochemical conditions of the wild and farm environments were within the recommended ranges for Largemouth bass breeding. The sex ratio is in favor of females at the El Mehouane dam during fishing. This can be explained by the behavior of the male, who is busy preparing the nest for breeding. Different stages of oocyte maturation were observed with different diameters. Among the females injected with HCG (75%), only 12.5% responded and spawned. However, all the males responded and they began to circle around and on the nests. The latency time was estimated at 59 hours. This confirms the effectiveness of HCG on females.

Contribution à la reproduction contrôlée du Black Bass (Micropterus salmoides) (Lcepéde, 1802) [texte imprimé] / Imen Bouyakoub, Auteur ; Chalabia Chabet Dis, Auteur . - Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza-, 024/2025 . - p.47 : couv. en noir et blanc ., ill., fig. ; 30 cm + CD.
Bibliographie: p40-45.
Annexes: p47.
Langues : Français (fre)

Catégories :	Hydrobiologie
Mots-clés :	Disinfection  Hormonal stimulation  Oocytes  Physico-chemical parametrers  Sex ratio.
Index. décimale :	551.37
Résumé :	Largemouth bass is a carnivorous fish native to the lakes and rivers of North America that was first introduced to Algeria in 1956. This species is particularly interesting from both an economic and ecological standpoint. The present work aims to artificially reproduce the Largemouth bass using hormones and recreating the natural spawning conditions in captivity to promote egg-laying. 84 breeders were caught at the El Mehouane dam with a sex ratio of 0.58 using a monofilament gill net with a mesh size of 45 mm. 20 breeders were chosen for hormonal injection based on the health status of the individuals. The breeders underwent a prophylactic bath of methylene blue and a saline solution. After treatment, sexing, weighing, measuring, and checking the maturity state of the oocytes, the males and females were injected with HCG and pituitary gland. To collect eggs, artificial nests were set up after disinfection. The latency period was estimated. The physicochemical conditions of the wild and farm environments were within the recommended ranges for Largemouth bass breeding. The sex ratio is in favor of females at the El Mehouane dam during fishing. This can be explained by the behavior of the male, who is busy preparing the nest for breeding. Different stages of oocyte maturation were observed with different diameters. Among the females injected with HCG (75%), only 12.5% responded and spawned. However, all the males responded and they began to circle around and on the nests. The latency time was estimated at 59 hours. This confirms the effectiveness of HCG on females.