Determination of a predictive growth model for cultivated African catfish Clarias gariepinus (Burchell, 1882)

2021 ◽  
Author(s):  
Babatunde Olaseni Musa ◽  
Alvaro Hernández‐Flores ◽  
Oludare Akanni Adeogun ◽  
Adekunle Oresegun
Keyword(s):  
Growth Model ◽  
Clarias Gariepinus ◽  
African Catfish

Isolation and Pathogenicity Determination of Bacillus cereus Associated with Ulcer Formation in African Catfish Clarias gariepinus

2020 ◽  
Vol 15 (1) ◽  
pp. 10-18
Author(s):  
Abdelgayed M. Younes ◽  
Alkhateib Y. Gaafar ◽  
Alaa Eldeen Z. ◽  
Attia A. Abou Zaid ◽  
Ahmed A. Askora
Keyword(s):  
Bacillus Cereus ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Ulcer Formation

scholarly journals Morphometric and histological features of the testicles of cultured male broodstock African Catfish (Clarias gariepinus) at different ages

2018 ◽  
Vol 68 (2) ◽  
pp. 211 ◽  
Author(s):  
OKOYE CHIDOZIE NWABUISI ◽  
ANIETIE FRANCIS UDOUMOH ◽  
DAN-JUMBO SUSAN OMUBOBA ◽  
EZE UKAMAKA UCHENNA ◽  
OZOKOYE ANTHONY CHUKWUEMEKA ◽  
...  
Keyword(s):  
Clarias Gariepinus ◽  
Fish Population ◽  
Seminiferous Tubules ◽  
African Catfish ◽  
Spermatogenic Cells ◽  
Morphological Adaptations ◽  
The Mean ◽  
Partial Distortion ◽  
Apparently Healthy

Testicular tissues obtained from 25 apparently healthy broodstock African Catfish (Clarias gariepinus) of 6, 8, 9, 10 and 12 months old were used to investigate the morphological adaptations of the testicles suitable for reproductive exercises. The result showed that the mean gonadosomatic indices of the pooled testicles of the catfish increased linearly from 0.30 ± 0.02, 0.34 ± 0.01, 0.45 ± 0.09 at 6, 8, and 9 months of age respectively and peaked at 12 months with a GSI value of 0.61±0.13. Moreover, the epithelial height of the seminiferous tubules of 9 month old catfish was significantly (P<0.05) higher than the epithelial heights of the 6, 8, 10 and 12 month old fish. The luminal diameters of the seminiferous tubules of the testicles of 10 and 12 months old catfish were significantly (P<0.05) higher than the luminal diameters of the 6, 8 and 9 months old fish. The encapsulated testicles of the catfish exhibited seminiferous lobules which contained spermatogenic cells in cysts. However, at 10 months, there were partial distortion of the cystic distribution of the spermatogenic cells and occasional loss of the germinal epithelium while evidences of necrosis of some of the cells of the seminiferous epithelium were recorded in the testicles of 12 months old fish. Finally, the present study has provided morphological evidences that the use of gonadosomatic indices alone in the determination of the reproductive state of a fish population may give an erroneous picture and that the 8 and 9 months old broodstock African Catfish (Clarias gariepinus) may be most suitable for breeding exercises.

Determination of quarantine period in African catfish (Clarias gariepinus) fed with pig (Sus sp.) offal to assure compliance with halal standards

2012 ◽  
Vol 135 (3) ◽  
pp. 1268-1272 ◽  
Author(s):  
M.N. Wan Norhana ◽  
G.A. Dykes ◽  
B. Padilah ◽  
A.A. Ahmad Hazizi ◽  
A.R. Masazurah
Keyword(s):  
Clarias Gariepinus ◽  
African Catfish

Thermosensitivity of the sex differentiation process in the African catfish, Clarias gariepinus: Determination of the thermosensitive period

Aquaculture ◽  
2016 ◽  
Vol 455 ◽  
pp. 73-80 ◽  
Author(s):  
Saïdou Santi ◽  
Vincent Gennotte ◽  
Aboubacar Toguyeni ◽  
Charles Mélard ◽  
Nadine Antoine ◽  
...  
Keyword(s):  
Sex Differentiation ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Differentiation Process ◽  
Thermosensitive Period

EFEKTIVITAS ANTIBAKTERI BAWANG PUTIH (Allium sativum L) SEBAGAI PENGAWET ALAMI PADA IKAN LELE DUMBO (Clarias gariephinus) SEGAR

2019 ◽  
Vol 14 (1) ◽  
pp. 26
Author(s):  
Dyah Anggraeni ◽  
Nurlela Nurlela
Keyword(s):  
Room Temperature ◽  
Allium Sativum ◽  
Research Result ◽  
Clarias Gariepinus ◽  
Storage Period ◽  
The Body ◽  
Garlic Extract ◽  
African Catfish ◽  
Natural Preservatives ◽  
Colony Counter

Background: Natural preservatives are compounds produced by natural ingredients that can suppress bacterial growth and development. Natural preservatives are carried out because most of the preservatives circulating are chemicals and unsafe for the body. One of the natural preservatives is by using garlic extract (Allium sativum L).  Objective: This study is aimed to determine the effectiveness of the antibacterial garlic (Allium sativum L) as a natural preservative in fresh African catfish (Clarias gariepinus).  Method: This research used the Pour Plate iroculation method. African catfish (Clarias gariepinus) which is soaked with garlic (Allium sativum L) with a concentration of 7%, 14% and 21% for 30 minutes, then the fish will be kept at room temperature with a storage period of 24 hours and 48 hours and calculated growth in bacterial numbers with the Colony counter.  Result: Based on the research result, it was found that garlic extract (Allium sativum L) can obstruct the effectiveness of antibacterial in African catfish (Clarias gariepinus) at a concentration of 14%.

PEMBEKUAN SEMEN LELE DUMBO (Clarias Gariepinus BURCHELL 1822) SEBAGAI MODEL KRIOPRESERVASI SEMEN IKAN

2010 ◽  
Vol 9 (1) ◽  
Author(s):  
Lutfi Lutfi
Keyword(s):  
Liquid Nitrogen ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Nitrogen Vapor ◽  
Dmso Concentration ◽  
Freezing Temperatures ◽  
Vapor Liquid

<p><em>Effect of four types of diluents</em><em>s</em><em> and four concentration of DMSO (5%, 10%, 15% and 20%) against the motility of African catfish sperm were evaluated after storage at freezing temperatures. </em><em>The steps in preparation the 16 treatments combination of the diluents</em><em> </em><em>are </em><em>preparation of diluents, mixing </em><em>diluents </em><em>with DMSO, packing </em><em>of semen </em><em>in</em><em>to</em><em> 0.3-ml straw, equilibration of </em><em>semen </em><em>at 4 °C for 30 minutes, freezing </em><em>of </em><em>semen in nitrogen vapor liquid </em><em>at </em><em>a height of 6.5 cm for 10 minutes</em><em>,</em><em> and subsequent</em><em>ly</em><em> storage of </em><em>semen </em><em>in liquid nitrogen (-196</em><em> <sup>0</sup></em><em>C) for further analy</em><em>sis</em><em> </em><em>of </em><em>post-thawing motility (PTM). </em><em>The result showed that t</em><em>he highest level of motility of spermatozoa </em><em>was </em><em>in </em><em>treatment </em><em>P</em><em><sub>1</sub></em><em>D</em><em><sub>15 </sub></em><em>(45.7 ± 4.3%) and the lowest </em><em>was </em><em>in </em><em>treatment </em><em>P<sub>2</sub>D<sub>20</sub> (14.5 ± 13.2%). The best diluent </em><em>in </em><em>this observation </em><em>was </em><em>diluents containing NaCl, KCl, CaCl<sub>2</sub> and NaHCO<sub>3</sub>. The best concentration </em><em>was </em><em>DMSO 15%. While the best interaction between the concentration of DMSO diluents is P<sub>1</sub>D<sub>15</sub> treatments containing NaCl, KCl, CaCl <sub>2</sub> and NaHCO<sub>3</sub> with a combination of 15% DMSO concentration. </em><em>The </em><em>conclusion </em><em>of the research is that </em><em>diluents containing NaCl, KCl, CaCl<sub>2</sub> and NaHCO<sub>3</sub> with a combination of 15% DMSO concentration</em><em> can be used in </em><em>cryopreservation of African catfish semen</em><em>.</em></p>

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