Performances comparées de survie et de croissance d’&lt;i&gt;Oreochromis niloticus&lt;/i&gt; associé à &lt;i&gt;Clarias jaensis&lt;/i&gt; et à &lt;i&gt;Clarias gariepinus&lt;/i&gt;

Zango, Paul; Tomedi, Minette Tabi Eyango; Tiogué, Claudine Tekounegning; Efole, Thomas Ewoukem; Pouomogne, Victor; Mikolaseck, Olivier; Tchoumboué, J.

doi:10.4314/cajeb.v11i1.1

Cited by 3 publications

(2 citation statements)

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“…Despite the consequences of "introductions" on native species [8], the Mbo Floodplain has become over the years an "attic" of catfish juveniles for the stocking of fish ponds in Cameroon since the introduction of this species; to the point where its endogenous sister C. jaensis would be in the process of disappearing in the catches. Furthermore, several studies have reported low rates of survival and growth in captivity in Clarias jaensis [9][10][11]. In addition to captivity, many failures have been recorded in the artificial reproduction of Clarias jaensis [12,13].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hybridization in Two African Catfishes (Siluriformes, Clariidae): Exotic (Clarias gariepinus Burchell, 1822) and Native (Clarias jaensis Boulenger, 1909) Species under Controlled Hatchery Conditions in Cameroon

Tiogué

Nyadjeu

Mouokeu

et al. 2020

Advances in Agriculture

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The study was conducted to evaluate reciprocal hybridizations in the African catfishes Clarias gariepinus and Clarias jaensis using artificial reproduction under controlled hatchery conditions. The results revealed that the highest fertilization (82.77%) and hatching (67.77%) rates were achieved in the hybrid cross female C. jaensis × male C. gariepinus (Fcj × Mcg). Deformed larvae rates ranged from 9.01 to 16.33%; the hybrid Fcj × Mcg recorded the lowest rate. Survival rates in the larval stage were higher than 80% whatever crossing considered. However, it was higher in the hybrid Fcj × Mcg unlike its homologous female C. gariepinus × male C. jaensis (Fcg × Mcj) which recorded the lowest value (81.70%). In the fry stages D32, survival rates were low than 65%. They were higher and comparable in parental cross Fcg × Mcg (57%) and hybrid cross Fcj × Mcg (61.67%). The lowest survival rate (41.16%) was recorded in parental cross Fcj × Mcj. The hybrid cross Fcj × Mcg expressed the highest growth performances close to those of parental cross Fcg × Mcg, unlike parental cross Fcj × Mcj. Size heterogeneity was greater in hybrids. In all crosses, the condition factor K was low (0.58 to 0.85%), the length-weight relationship was significant with determination coefficient R2 greater than 0.9. The growth was of the negative allometric type (with b less than 3). Positive heterosis has been recorded for both survival and growth at all stages of development. It was concluded that C. jaensis × C. gariepinus hybridizations are indeed possible and would contribute to improve Clarias fry production in captivity. However, the pure strains of Clariidae remain endangered in the natural environment.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Hybridization in Two African Catfishes (Siluriformes, Clariidae): Exotic (Clarias gariepinus Burchell, 1822) and Native (Clarias jaensis Boulenger, 1909) Species under Controlled Hatchery Conditions in Cameroon

Tiogué

Nyadjeu

Mouokeu

et al. 2020

Advances in Agriculture

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“…Cameroon's biodiversity comprises many indigenous fish species such as Chrysichthys longidorsalis (C. longidorsalis) (Plate 1), Labeobarbus batesii and Parachana obscura amongst others, which could have great aquaculture potential and high commercial value in Cameroon [3,4]. Indigenous African carps and catfish including Labeo parvus [8][9][10] in Benin, Labeo coubie in Nigeria [11], Labeobarbus batesii and Clarias jaensis in Cameroon [7,12,13] have been shown to be profitable and adapting better to constraints of local aquaculture. This suggests that indigenous fish species in Cameroon can perform better in aquacultures in the country.…”

Section: Introductionmentioning

confidence: 99%

Length-Weight Relationship and Condition Factor of Chrysichthys longidorsalis (Risch & Thys Van Den Audenaerde, 1981) Landed at the Sanaga River Basin, Cameroon

Achu

Tiogué

Awah-Ndukum

2023

AJOB

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Given the lack of adequate information on morphometric characteristics of wild fish in Cameroon, the present research was carried out from November 2019 to October 2020 to analyse length - weight relationship and Fulton’s condition factor of Chrysichthys longidorsalis (Risch & Thys van den Audenaerde, 1981) to provide baseline information for its fishery management and aquaculture development. A total of 451 sampled C. longidorsalis captured from Sanaga River basin of the Centre Region in Cameroon were identified and lengths and weights measured. Mean standard length, total length and total weight of samples were 18.13 ± 7.32 cm, 23.91 ± 9.37 cm and 305.15 ± 315.66 g respectively. The males were longer and heavier than females (p<0.05). High correlation coefficient (>0.9) and coefficient of determination (R2 = 0.9516) revealed strong positive relationship (>95%) between fish standard length and total weight. The growth coefficient (b) values, were less than 3 (2.7234) suggesting a negative allometric growth pattern. Though the condition factor was higher (p<0.05) in males and during the dry season than in females and during the rainy season, the overall value was 5.85 ± 11.44, indicating that the fish had good adaptation to conditions of the Sanaga River basin. This study serves as useful reference for sustainable management and conservation of fish resources in Cameroonian waters.

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Effect of Replacement of Fishmeal With Lima Bean Meal on the Zootechnical Performances of African Catfish (Clarias Gariepinus) in the Batié Sub-Division, West Region of Cameroun

Miegoué

Zebaze

Tendonkeng

et al. 2018

IJAR

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This study was conducted to evaluate the effect of the substitution of fishmeal by Lima bean flouron the growth performance, survival rate and feed cost of Clariasgariepinusbetween March and May 2018 within the AIO ICG of the Batié District. It also aimed to contribute to the development of alternative sources of animal protein on a global scale. For this purpose, 300 fry of Clariasgariepinuswith an average weight of 3 ± 1.41g were divided into five batches and fed three times a day with rations corresponding to 5% of their ichthyobiomass. The rations R0, R25 R50, R75 and R100 respectively corresponded to the substitution rates of 0, 25, 50, 75 and 100% of fish meal by that of Lima bean. The physic-chemical characteristics of the water (pH, temperature, dissolved oxygen, nitrites and nitrates) were measured daily. The following results were obtained: The highest weight gains were obtained with the rations R25 (20.56 ± 0.40 g), R50 (20.64 ± 0.32 g), R75 (20.98 ± 0.46 g) and the lowest with the rations of R100 (16.21 ± 0.28 g). The highest average daily gain were 0.36 ± 0.02 g; 0.37 ± 0.01 g ; 0.38 ± 0.01 g respectively for the R0, R50 and R75 rations and the lowest with R100 (0.29 ± 0.01 g). The highest value of the specific growth rate (2.47 ± 0.07%) was obtained with the ration R0 and the lowest (1.61%) with the ration R100. The consumption index reached its highest and lowest values with the rations R100 (4.74 ± 0.42) and R50 (3.57 ± 0.43) respectively, compared to the value of the ration R0 (3.31 ± 0.37) for this parameter. Concerning the condition factor K, the highest value was recorded with the R50 diet (1.11 ± 0.49) while the lowest value was obtained with the R75 diet (0.95 ± 0.45). The cost of producing one kilogram of food was higher with the R25 ration (504.59 FCFA) and lower with the R100 ration (443.20 FCFA). Our results revealed that incorporating 75% Lima bean flour into the feed increases the growth performance of Clariasgariepinus fry and reduces the cost of food production.

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Performances comparées de survie et de croissance d’<i>Oreochromis niloticus</i> associé à <i>Clarias jaensis</i> et à <i>Clarias gariepinus</i>

Cited by 3 publications

References 0 publications

Evaluation of Hybridization in Two African Catfishes (Siluriformes, Clariidae): Exotic (Clarias gariepinus Burchell, 1822) and Native (Clarias jaensis Boulenger, 1909) Species under Controlled Hatchery Conditions in Cameroon

Evaluation of Hybridization in Two African Catfishes (Siluriformes, Clariidae): Exotic (Clarias gariepinus Burchell, 1822) and Native (Clarias jaensis Boulenger, 1909) Species under Controlled Hatchery Conditions in Cameroon

Length-Weight Relationship and Condition Factor of Chrysichthys longidorsalis (Risch & Thys Van Den Audenaerde, 1981) Landed at the Sanaga River Basin, Cameroon

Effect of Replacement of Fishmeal With Lima Bean Meal on the Zootechnical Performances of African Catfish (Clarias Gariepinus) in the Batié Sub-Division, West Region of Cameroun

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