Growth performance and survival of hybrid African catfish larvae (Clarias gariepinus x Heterobranchus bidorsalis) fed on different diets

Autor: Adewolu, M.A, Akintola, S.L, Akinwunmi, O.O
Jazyk: angličtina
Rok vydání: 2010
Zdroj: Zoologist (The); Vol 7 (2009)
ISSN: 1596-972X
Popis: The study evaluates the growth performance and survival of hybrid African catfish larvae (Clarias gariepinus X. Heterobranchus bidorsalis) fed different diets: live Artemia nauplii, decapsulated Artemia cysts, live Ceriodaphnia sp and commercial dry diet (50% crude protein). Catfish larvae of mean weight 10.01±0.01mg of mean length 9.05±0.09mm were fed from the onset of exogenous feeding for 28days in plastic aquaria tanks (10L capacity each). At the end of the feeding trial, the highest weight gain, 889.99±5.00mg was recorded for the larvae fed with decapsulated Artemia cysts followed by those fed with live Ceriodaphnia with mean weight gain of 442.66 ± 2.24mg. The least weight gain 60.42 ± 1.80mg was obtained in larvae fed with commercial diet. The best and the least specific growth rates (SGR), 16.07 ± 0.02 and 6.97 ± 0.01 were also obtained in larvae fed decapsulated Artemia cysts and commercial diet respectively. Statistically, all the results of the growth parameters obtained from the different diets were significantly different (p
Databáze: OpenAIRE