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Abstract
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Article Information:
Determination of Testes Regeneration Period for African Catfish (Clarias anguillaris) after Milt (Semen) Collection Through Ablation
M.Y. Diyaware, A.B. Haruna and K.A. Abubakar
Corresponding Author: M.Y. Diyaware
Submitted: 2010 Aug., 10
Accepted: 2010 September, 13
Published: 2010 November, 25 |
Abstract:
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The testes regeneration period of male African catfish (Clarias anguillaris) after milt collection
through ablation was studied at 30 days intervals for the period 120 days with the intention to determine the
testes regeneration period. Milt was collected from twelve matured males of Clarias anguillaris and the testes
were left to regenerate. Testes weight, milt volume, Gonadosomatic Index (GSI), percentage fertilization and
hatching rates increased with increase in testes regeneration periods. The highest testes weight, milt volume,
gonadosomatic index, percentage fertilization and hatching rates were obtained at 120 days (4 months)
regeneration period. There was no significant differences (p>0.05) between 120 and 90 days testes regeneration
periods. Milt from African catfish Clarias anguillaris can be obtained without killing the male. The economical
time to re-use male Clarias anguillaris after testes regeneration is 90 days (3 months). Fish breeders, hatchery
operators as well as fish geneticist in Nigeria can therefore use male African catfish up to three times in a year
for breeding purposes and for further genetic studies.
Key words: Ablation, male C. anguillaris, milt collection, testes regeneration, , ,
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Cite this Reference:
M.Y. Diyaware, A.B. Haruna and K.A. Abubakar, . Determination of Testes Regeneration Period for African Catfish (Clarias anguillaris) after Milt (Semen) Collection Through Ablation. Current Research Journal of Biological Sciences, (6): 375-379.
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ISSN (Online): 2041-0778
ISSN (Print): 2041-076X |
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