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American Journal of Innovative Research & Applied Sciences
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  | ARTICLES | Am. J. innov. res. appl. sci. Volume 6,  Issue 6, Pages 271-275 (June 2018)
Research Article
 
American Journal of innovative
Research & Applied Sciences 
ISSN  2429-5396 (Online)
OCLC Number: 920041286
|
| MAY VOLUME 6 | N° 6  | 2018 |
Authors Contact

*Correspondant author and authors Copyright © 2018:

| Nina Nindum Sulem-Yong 1,2* | Armand Fiemapong Nzoko 2 | Sophie Nina Natacha Eyenga | Ngono 1 | Patricia Linda Kameni Djikengoue 1,2 | Serge Hubert Zebaze Togouet 2 | George Yongbi Chiambeng 1 | Pauline Mounjouenpou 1 | Kingsley Agbor Etchu 1 | and | Steve Yong-Sulem 1 |.
Affiliation.

1.Institute of Agricultural Research for Development | Yaoundé | Cameroon |
2.University of Yaoundé I  | Department of Animal Biology and Physiology | Yaoundé | Cameroon|

This article is made freely available as part of this journal's Open Access: ID | Nina-ManuscriptRef.1-ajira200518 | 
ABSTRACT


Background: The main factor constraining Catfish farming consists of a chronic lack of fingerlings which is mostly due to very low larval survival rates. Objective: In order to alleviate mass mortalities of larvae, zooplanktons were used as preys for Clarias gariepinus larvae. Methods: A completely randomized design was set up to test the effects of separate feeding with copepods, cladocerans, rotifers and a 1:1:1 mixture of the three types for 20 days. Ingestibility, survival and growth were evaluated for pre-defined spanning life stages labelled 1, 2, 3, 4 and 5 of four days each. Results: Rotifers were more ingested by stage 1 and 2 larvae than cladocerans but stage 3 and 4 larvae ingested more of cladocerans. Larval survivals (100%) were not affected by zooplankton types during stage 1 but were significantly sustained by cladocerans during stage 2, 3, 4 and 5. Only in stage 3 did another zooplankton type, rotifers, stand out as second in sustention of survivals. Larval growth was significantly affected right from stage 1, rotifers, cladocerans and mixtures successively taking turns in excelling each other. Although copepods never excelled, they became increasingly important towards the end of the experiment. Conclusions: These results were discussed to enable a conception of recommendations in view of optimizing protocols for applying zooplanktons as preys for C. gariepinus larvae.
Keywords: Clarias gariepinus larvae, Zooplankton, Ingestibility, Survival, Growth.

TOWARDS AN OPTIMUM PROTOCOL FOR FEEDING OF AFRICAN CATFISH, Clarias gariepinus (BURCHELL, 1822), LARVAE WITH DIFFERENT TYPES OF ZOOPLANKTONS PER LIFE STAGE

    | Nina Nindum Sulem-Yong 1,2* | Armand Fiemapong Nzoko 2 | Sophie Nina Natacha Eyenga | Ngono 1 | Patricia Linda Kameni Djikengoue 1,2 | Serge Hubert Zebaze Togouet 2 | George Yongbi Chiambeng 1 | Pauline Mounjouenpou 1 | Kingsley Agbor Etchu 1 | and | Steve Yong-Sulem 1 |.  Am. J. innov. res. appl. sci. 2018; 6(6):271-275.

    | PDF FULL TEXT |  | XML FILE |  | HTML FILE |  | Received | 20 May 2018 |  | Accepted | 20 June 2018 |  | Published | 25 June 2018 |