Authors :
Sohanur Rahman Sohan; Junayed Hossen; Rabina Akther Lima; Md. Shoebul Islam; Md. Arifuzzaman; Md. Touhidul Islam; Md.Iqramul Haque
Volume/Issue :
Volume 8 - 2023, Issue 2 - February
Scribd :
https://bit.ly/3TacpBP
DOI :
https://doi.org/10.5281/zenodo.7731023
Abstract :
In aquaculture, feed costs contribute for
between 50 and 70 percent of overall production costs.
Given the world's rapidly expanding aquaculture
production, fish oils (FO) obtained from finite wildcatch
fisheries will not be able to supply the rising demand for
aquafeeds. To decrease reliance on global capture
fisheries, it is essential to seek out sustainable
alternatives for FO. Microalgal feed stuffs could become
one of the aquaculture industry's most promising and
sustainable alternatives. Algal meal 8.77% was
determined to be the optimum diet for dramatically
changing the lipid profile of tilapia fillets at week eight.
In one study, the substitution of fish oil with algal flour
and vegetable oil resulted in an increase in the weight
and nutritional value (n-3 PUFA and LC-PUFA) of
shrimp muscle. The combination of algal meal and
vegetable oil might replace 75% of the fish oil in shrimp
diets. These data indicate that up to 100 percent of FO
can be replaced with S.limacinum meals, hence
enhancing the growth of T. macdonaldi while
maintaining the nutritional value and health advantages
of the fillet. This is the first report of increased feed
utilization indices, weight gain, and beneficial fatty acid
profiles in Nile tilapia when fish oil is completely
substituted by 16% of dried whole-cells of a marine
microalga species, Schizochytriumsp (Sc). All of these
data demonstrate the viability of using microalgae as a
fish feed ingredient in place of fish oil to improve the
growth and immunity of fish.
Keywords :
Aquaculture, Microalgae, fish oil, growth performance, immunity
In aquaculture, feed costs contribute for
between 50 and 70 percent of overall production costs.
Given the world's rapidly expanding aquaculture
production, fish oils (FO) obtained from finite wildcatch
fisheries will not be able to supply the rising demand for
aquafeeds. To decrease reliance on global capture
fisheries, it is essential to seek out sustainable
alternatives for FO. Microalgal feed stuffs could become
one of the aquaculture industry's most promising and
sustainable alternatives. Algal meal 8.77% was
determined to be the optimum diet for dramatically
changing the lipid profile of tilapia fillets at week eight.
In one study, the substitution of fish oil with algal flour
and vegetable oil resulted in an increase in the weight
and nutritional value (n-3 PUFA and LC-PUFA) of
shrimp muscle. The combination of algal meal and
vegetable oil might replace 75% of the fish oil in shrimp
diets. These data indicate that up to 100 percent of FO
can be replaced with S.limacinum meals, hence
enhancing the growth of T. macdonaldi while
maintaining the nutritional value and health advantages
of the fillet. This is the first report of increased feed
utilization indices, weight gain, and beneficial fatty acid
profiles in Nile tilapia when fish oil is completely
substituted by 16% of dried whole-cells of a marine
microalga species, Schizochytriumsp (Sc). All of these
data demonstrate the viability of using microalgae as a
fish feed ingredient in place of fish oil to improve the
growth and immunity of fish.
Keywords :
Aquaculture, Microalgae, fish oil, growth performance, immunity
