IJAIR NAAS Score : 3.99 ,ISSN : 2319-1473
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Genetic Characterization and Comparative Study of Two Tilapia Species and Their Hybrids Fecundity Reared in the South Eastern of Côte d’Ivoi
- Céline Sidonie Koco Nobah; Kouakou Augustin Kouame; Affourmou Kouame; Paul Essetchi Kouamelan
- The present work was performed at Aboisso, in the Sud East of Côte d’Ivoire (West Africa). Broodstocks, Tilapia zillii and Tilapia guineensis were bred in cemented tank to study their fecundity and also that of reciprocal hybrids F1A [Tilapia zillii (Male) x T. guineensis (female)] and F1B [Tilapia zillii (female) x T. guineensis (male)] obtained. Before crosses, genetic caractérisations were performed on parental strains and first generation hybrid to be sure that broodstocks are pure strain. This first investigation shows that the broodstocks used for reproduction are pure strain and all specimens hybrid F1A and F1B are clearly characterized by the presence of a composite profile, both constituted of RAPD specific fragments of T. zillii and T. guineensis. The reproduction shows that mortality rate of broodstoks [0% for all crosses except T. zillii (female) x T. guineensis (male)], average values of fecundity (4965 fingerlings/female kg/year - 6612 fingerlings/female kg/year), time between two successive spawns (45,67 d–70,36 d), duration before first reproduction (24 d-190 d) and sexe ration (1:1) obtained are satisfactory in the perspective of using hybrids in fish culture. The less satisfactory fecundity parameters are obtained with T. zillii (female) x T. guineensis (male) crosses
- Select Volume / Issue:
- Year:
- 2015
- Type of Publication:
- Article
- Keywords:
- Genetic characterization; Côte d Ivoire; Reproduction; RADP; Tilapia hybridization
- Journal:
- IJAIR
- Volume:
- 3
- Number:
- 5
- Pages:
- 1357-1363
- Month:
- March
- ISSN:
- 2319-1473
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