Faturoti, E.O. and Obasa, S.O.
Growth responses and yield of heterotis (Heterotis niloticus) on artificial diet.
In: 10th Annual Conference of the Fisheries Society of Nigeria (FISON)
, 16-20 November 1992
, Abeokuta, Nigeria.
The growth responses and yield of Heterotis niloticus on artificial diets of varying protein levels were studied in a bid to assess the implication of feeding Heterotis in intensive fish production venture for a rearing period of 84 days. One hundred and twenty juvenile H.niloticus were fed for 12 weeks on 28%, 31%, 34% and 37% dietary crude protein levels. The fish were reared in 4 concrete tanks stocked at the rate of 10 fish per M super(2) 100,00/hectare). Consequently, the weight gain, food conversion ratio, serum protein and albumin-globulin
ratio were determined to assess the growth and state of health of the fish. The yield was appraised through economic considerations of cost of production of fish and diets (feed). The varying crude protein levels significantly influenced mean weight gain, percentage weight
gain and food conversion ratio however, the 37% crude protein in diet produced the best growth. The serum protein was highest in fish raised on 31% crude protein diet while the highest value was recorded for albumin-globulin ratio on diet containing 34% crude protein. The yield from treatments 1, 2, 3, and 4 were 114.38 of/84 days 571.9kg/g hect);146.79g/84 days 733.95kg/hect), respectively. However, treatment 3 recorded the highest value for profit index
Conference or Workshop Item
||Growth responses and yield of heterotis (Heterotis niloticus) on artificial diet
||10th Annual Conference of the Fisheries Society of Nigeria (FISON)
||16-20 November 1992
||Fisheries Society of Nigeria
||Nigeria; artificial feeding; diets; fish culture; food
conversion; intensive culture; proteins; rearing; Heterotis niloticus
Ms Maria Kalentsists
||05 Jun 2010 06:56
||29 Sep 2011 13:05
Actions (login required)