NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT
Journal of the Faculties of Science and Agriculture, Delta State University, Abraka, Nigeria
ISSN: 1119-9008
DOI: 10.5987/UJ-NJSE
Email: njse@universityjournals.org
A COMPARATIVE STUDY ON THE BREEDING PERFORMANCE OF BIDORSALIS HETEROBRANCHUS AND HETEROBRANCHUS LONGIFILIS, USING THREE DOSES OF OVAPRIM
DOI: 10.5987/UJ-NJSE.16.005.2 | Article Number: 4B1D865 | Vol.12 (2) - September 2013
Author: Nwaduekwe F.O
Comparative analysis was carried out on induced breeding of Heterobranchus bidorsalis and Heterobranchus
longifilis, using ovaprim at three doses, viz 4ml/Kg, 5ml/Kg and 6ml/Kg of female
broodfish weight. Latency period and time of hatching were similar for both fish species. The dosage
of 4mg/Kg gave 2.66% fertilization among H.bidorsalis eggs and no fertilization among H.
longifilis eggs. No hatching occurred at this hormone dosage with 5mg/Kg of hormone of dosage,
mean fertilization and hatching values were 49.17±5.73 and 38.75 ±5.10 respectively for H. bidorsalis
and 37.42±7.00 and 26.08 ± 3.82 respectively for H. longifilis. However, the dosage of 6mg/
kg gave the best results of 65.58±4.54 and 59.75±4.41 for fertilization and hatching rates respectively
in H. bidorsalis. In H. longifilis, the same dosage gave fertilization and hatching rates of
51.75±4.47 and 47.16±4.73 respectively. Mean water temperature in the broodstock ponds was
28.42oC ± 1.55, dissolved oxygen was 1.64mg/L±0.56 during the study period. Students t-test
should no significant difference (P>0.03) in survival of fry of fish species after 10 days of rearing
in concrete tanks.
Boyd, C.E. (1982). Water quality management
for pond fish culture. 1st edn, Elsevier
Scientific publication Company,
New York
Haylor, G.S. (1991). Controlled hatchery production
of Clarias garipenus (Burchell,
1822); growth and survival of fry at high
stocking density. Aquaculture and Fisheries
Management 22: 405-422.
Nunez-Rodriquez, J., Oteme, Z.J. and
S.Hem, S. (1995). Comparative study of
vitellogenesis of two African catfish species,
Chrysichthys nigrodigitatus
(Claroteidae) and Heterobranchus longifilis
(Clariidae). Aquatic Living Resources
8: 291-296.
Nwadukwe, F.O.(1993) Inducing oocyte
maturation, ovulation and spawning in African
catfish, Heterobranchus longifilis
Valenciennes (Pisces: Clariidae), using
frog pituitary extract. Aquaculture and
Fisheries Management 24: 625-630.
Nwadukwe, F.O. (1995a) Hatchery propagation
of five hybrid groups by artificial hybridization
of Clarias gariepinus (B) and
Heterobranchus longi f i l i s Val . )
(Clariidae), using dry, powdered carp pituitary
hormones. Journal of Aquaculture
in the Tropics 10: 1-11.
Nwadukwe, F.O. (1995b). Analysis of production,
early growth and survival of
Clarias gariepinus (Burchell), Heterobranchus
longifilis (Val) (Pisces: Clariidae)
and their F1 hybrids in ponds. Netherland
Journal of Aquatic Ecology 29(2):
177-182.
Nwadukwe, F.O., Ayinla, O.A. and Abby-
Kalio, N.J. (1993). Effects of various
doses of acetone-dried, powdered carp pituitary
extract and seasons on hatchery
propagation of Heterobranchus longifilis
(Val, 1840) (Pisces: Clariidae) Journal of
Aquaculture in the Tropics 8:33:40.
Okoro, C.B., Nwadukwe, F.O and Ibemere,
I (2007) The use of ovaprim in oocyte
maturation and ovulation in Clarias gariepinus
(burchell, 1822). African Journal of
Applied Zoology and Environmental Biology
9: 83-84.
Teugels, G.G., Denayer, T and Legendre,
M. (1990). A systematic revision of the
African catfish, genus Heterobranchus
Geofroy St.Hilaire 1809 (Pisces, Clariidae).
Zoology Journal of. Linnean Society
98: 237-257.
Wahua, T.A.T. (1999). Applied statistics for
Scientific studies. African Link Press Nigeria,
pp 140-145.