Comparative study of hatching rates of African catfish (Clarias gariepinus Burchell 1822) eggs on different substrates

cg.description.themeAquacultureen_US
cg.identifier.statusOpen access
cg.identifier.worldfish2353
cg.subject.agrovocCatfish
cg.subject.agrovocFish eggs
cg.subject.agrovocFish seed
cg.subject.worldfishcatfish
cg.subject.worldfishfish eggs
cg.subject.worldfishfish seed
dc.creatorMacharia, S.K.
dc.creatorNgugi, C.C.
dc.creatorRasowo, J.
dc.date.accessioned2018-11-27T10:53:46Z
dc.date.available2018-11-27T10:53:46Z
dc.date.issued2005
dc.description.abstractThe hatching rates of African catfish (Clarias gariepinus) eggs on four natural substrates: the roots of Nile cabbage (Pistia stratiotes), water hyacinth (Eichhornia crassipes), pond weed (Ceratophyllum dermasum) and green grass leaves (Commelina sp.), and four artificial substrates: sisal mats, nylon mats, papyrus mats and kakaban mats, was assessed. Concrete slabs were used as control. The natural substrates performed better than the artificial ones. Pistia roots gave the best mean hatching rate of 66.2 ± 3.62%. Green grass leaves were second with a mean rate of 54.0 ± 3.46%, water hyacinth was third with 49.7 ± 3.16% and Ceratophyllum fourth with a mean of 13.0 ± 2.37%. Concrete slabs gave a mean rate of 18.6 ± 2.8%, sisal mats 18.6 ± 2.0%, papyrus 12.2 ± 1.2% and kakaban 11.8 ± 1.9%. Nylon mats were the last, with a mean rate of 4.0 ± 0.7%. The best performing natural substrates were those with the ability to float and thin fibrous roots that seemed to allow higher aeration of the eggs during incubation. The cost of using natural substrates was minimal.
dc.formatapplication/pdf
dc.identifierna_2353.pdf
dc.identifier.citationNAGA 28(3/4): 23-26
dc.identifier.urihttps://hdl.handle.net/20.500.12348/1951
dc.languageen
dc.publisherWorldFish
dc.rightsCC BY 4.0
dc.sourceNAGA
dc.titleComparative study of hatching rates of African catfish (Clarias gariepinus Burchell 1822) eggs on different substrates
dc.typeJournal Article
dcterms.bibliographicCitationMacharia, S.K.; Ngugi, C.C.; Rasowo, J. (2005). Comparative study of hatching rates of African catfish (Clarias gariepinus Burchell 1822) eggs on different substrates. NAGA 28(3/4): 23-26

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
na_2353.pdf
Size:
155.29 KB
Format:
Adobe Portable Document Format

Collections