“EFFECT OF SEAWEED Caulerpa spp. AS DIETARY INGREDIENT ON GROWTH PERFORMANCE AND SURVIVAL OF Labeo rohita (Hamilton, 1822) FRY” 3019
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Date
2019-10
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JAU, JUNAGADH
Abstract
The study was conducted to evaluate the efficacy of seaweed (Caulerpa spp.)
as feed additive on specific growth rate, weight gain, survival and some biochemical
parameters in rohu (Labeo rohita) fry for 60 days. The five experimental diets were
prepared by adding Caulerpa spp. at 0% (control diet), 3% (T1), 6% (T2), 9% (T3)
and 12% (T3) inclusion level. Total 150 numbers of rohu (Labeo rohita) fry were
randomly distributed into five treatments (control + treatment), each in three replicate.
Sampling was carried out at every 15 days to monitor growth performance and to
adjust rations. The water quality parameters viz. DO, alkalinity, pH and temperature
was found in the permissible range during entire experimental period. Based on the
results, there was a significant difference (P>0.05) reported in weight and length gain
of fry fed with the different feeds during a period of 60 days. Fishes fed with T2
(Treatment) diet showed the highest mean weight gain, specific growth rate (SGR)
and protein efficiency ratio (PER) than those fed with other diets. Lowest feed
conversion ratio (FCR) and highest specific growth rate (SGR) SGR was obtained in
T2.In the proximate analyses of the fish carcass the protein content was significantly
highest in T2 compared to other treatments. The fat content was significantly higher
in T4. From the findings of the current study it can be concluded that seaweed
Caulerpa spp. is a potential protein rich basal ingredient and can be used to as good
feed additive if used 6% level in the diets of rohu (Labeo rohita) fry without
compromising its growth performance.