Étude comparative de la croissance de Clarias gariepinus et Clarias ngamensis en élevage semiintensif de la ferme Mwema a Lubumbashi.

Journal of Animal & Plant Sciences ◽

10.35759/janmplsci.v41-1.7 ◽

2019 ◽

pp. 6805-6809

Keyword(s):

Body Length ◽

Physicochemical Parameters ◽

Sampling Method ◽

Clarias Gariepinus ◽

Average Weight ◽

Etude Comparative ◽

Étude Comparative ◽

Initial Weight ◽

Artificial Propagation ◽

Significant Difference

1 RESUME La comparaison de la croissance de Clarias gariepinus et de Clarias ngamensis dans un système semi-intensif basé sur le poids et la taille lors de la reproduction artificielle à la ferme Mwema à Lubumbashi. L’étude a portée sur un lot homogène de 100 alevins dont 50 de Clarias gariepinus ayant un poids initial de 30g et 22cm de longueur corporelle, en suite 50 de Clarias ngamensis dont le poids initial était de 30g et 20cm de longueur corporelle. Au bout de 5 mois d’étude, nous avions obtenu un poids moyen de 82g et 29cm pour Clarias gariepinus et 60g et 25cm pour Clarias ngamensis. En faisant recours à la méthode d’échantillonnage, aux paramètres physico-chimiques de l’eau, aux paramètres mesures et a la reproduction induite, les résultats obtenus montrent qu’il y a différence significative entre le poids moyen de Clarias et de la taille. Il ressort que la plaque vomérienne que possède le Clarias gariepinus a une influence sur la valorisation des aliments mis à sa disposition par rapport au Clarias ngamensis élevé dans l’étang. SUMMARY The comparison of the growth of Clarias gariepinus and Clarias ngamensis in a semiintensive system based on weight and size during artificial propagation on the Mwema farm in Lubumbashi. The study was carried out on a homogeneous batch of 100 fry including 50 Clarias gariepinus with an initial weight of 30g and 22cm of body length, followed by Clarias ngamensis whose initial weight was 30g and 20cm of body length. After 5 months of study, we obtained an average weight of 82g and 29cm for Clarias gariepinus and 60g and 25cm for Clarias ngamensis. Using the sampling method, the physicochemical parameters of the water, the measured parameters and the induced reproduction, the results obtained show that there is a significant difference between the average weight of Clarias and the size . It appears that the vomereal plate that Clarias gariepinus possesses has an influence on the valorization of the food put at its disposal compared to the Clarias ngamensis raised in the pond.

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Effect of feed additive "Ceobalyk" on the biological and microbiological parameters of African sharptooth catfish (Clarias gariepinus)

Veterinary World ◽

10.14202/vetworld.2021.669-677 ◽

2021 ◽

Vol 14 (3) ◽

pp. 669-677

Author(s):

Nurzhan Biltebaevna Sarsembayeva ◽

Ardak Sabyrzhanovna Akkozova ◽

Tolkyn Bakytovna Abdigaliyeva ◽

Aida Bolatbekovna Abzhalieva ◽

Aray Berkimbekovna Aidarbekova

Keyword(s):

Body Length ◽

Clarias Gariepinus ◽

The Body ◽

Feed Additive ◽

Control Group ◽

Physiological Status ◽

Average Weight ◽

Microbiological Parameters ◽

African Sharptooth Catfish ◽

Experimental Group

Aim: This study aimed to analyze biological and microbiological parameters of Clarias gariepinus bred at Chundzha natural hot spring in the Almaty region of Kazakhstan, a new feed additive, namely, the prebiotic "Ceobalyk." Materials and Methods: Two groups (50 heads each) of fish of the same age were established and kept in specialized rectangular pools of AsylTasEngineering LLP. The experiment lasted 61 days. We used the feed additive "Ceobalyk", developed based on natural minerals. Feed additive was added to the feed of the experimental group of fish in an amount of 10% per 1 kg of the main diet. Laboratory studies were conducted at the laboratories of the Kazakhstan-Japan Innovation Center. The quality of the fish was studied in accordance with the standards of the Republic of Kazakhstan and interstate standards. Results: In biological and microbiological studies of all samples of African sharptooth catfish, which received a new type of feed additive "Ceobalyk", the pH values of fish meat in the experimental groups were normal and varied in the range from 6.5 to 6.7. When setting up the reaction with copper sulfate, the reaction was positive. During bacterioscopy, there was a noticeable decrease in the number of microbes (2-3 bacteria less) in comparison with the control. An increase in the indices of the absolute body length and body width was observed by the end of the study. The body length in the experimental group was significantly greater (by 2.12% on average) than that in the control group. In the experimental variant, the average weight of fish was 21.8% higher. As a result of organoleptic studies, it was revealed that the musculature of the fish of the experimental groups was dense and elastic; when pressed on the skin with a finger, a fossa did not remain; the smell was specific, fresh. When tested by cooking, the broth was transparent and aromatic. Conclusion: This feed additive "Ceobalyk" does not cause deviations in the physiological status of fish and can be used as part of the main diet.

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