Induced Breeding of Giant Catfish, Sperata seenghala using Hormonal Analogues
نویسندگان
چکیده
Received: Revised: Accepted: May 18, 2014 May 23, 2014 May 28, 2014 The study has been designed for the induced breeding of Giant Catfish, Sperata seenghala using hormonal analogues at Aquaculture and Fisheries Program, National Agricultural Research Center, Islamabad. The different hormonal analogues used in this study were ovaprim, HcG, LHRH and ovatide. The dose of ovaprim was 0.5 ml/kg 1b.w, ovatide 0.5 ml/kg 1b.w, LHRH 10 μg/kg 1 in double injection and HcG 10 μg/kg 1 in double injection. The best reproductive performance has been shown by the treatment of HcG i.e. % fertilization was 80±0.06, % hatchability 75±0.02 and % survival 56±0.02.
منابع مشابه
Development of breeding and fingerling production techniques for endangered long-whiskered catfish Sperata aor in captivity
An experiment was undertaken to develop a suitable seed production technique for Sperata aor in captivity. Naturally produced fry of aor was reared at different densities in nine nursery ponds 0.012 ha in size with an average depth of 0.8 m each. Three stocking densities tested, each of which was triplicated. Fry of aor stocked at 100,000/ha was designated as treatment-1 (T1), 150,000/ha as tre...
متن کاملDevelopment of breeding and fingerling production techniques for endangered long-whiskered catfish Sperata aor in captivity
An experiment was undertaken to develop a suitable seed production technique for Sperata aor in captivity. Naturally produced fry of aor was reared at different densities in nine nursery ponds 0.012 ha in size with an average depth of 0.8 m each. Three stocking densities tested, each of which was triplicated. Fry of aor stocked at 100,000/ha was designated as treatment-1 (T1), 150,000/ha as tre...
متن کاملInter-specific hybridization between freshwater catfish Mystus cavasius (Ham & Buch) and M. seenghala (Sykes) by artificial fertilization.
By employing the technique of induced ovulation for artificial fertilization, inter-specific hybrids between the threatened catfish species (Mystus cavasius x M. seenghala) were produced. Fertilization, hatching and survival were significantly different between control and hybrids. The hatching time of the hybrid was significantly lower than that of the control. The average performance viz., ha...
متن کاملRevision of Gangesia (Cestoda: Proteocephalidea) in the Indomalayan Region: Morphology, Molecules and Surface Ultrastructure
Tapeworms of Gangesia Woodland, 1924 (Cestoda: Proteocephalidea) parasitic in freshwater fishes in the Indomalayan Region were critically reviewed. Evaluation of type specimens and newly collected materials from Bangladesh, Cambodia and India, as well as critical examination of extensive literature have shown that only the following four species, instead of 48 nominal species of Gangesia and Si...
متن کاملThe Prevalence of Cestode Infection in a Freshwater Catfish, Sperata Sarwari
A sample of seventy specimens of a freshwater catfish, Sperata sarwari was collected from Mangla Lake during February to November 2005 and their guts preserved in 5 % formalin. After the catch, sample was divided into two sub-samples as size class I (31-60 cm) and size class II (61-90 cm). The gut of each fish specimen was examined for the presence of internal helminth parasites. The study reve...
متن کامل