Page 59 - Aquauclature Research and Studies (01)

AQUAUCLATURE
Research and Studies 1 (1): 15-01, 2026 page of 193
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Lipids extracted from algae, including saturated fatty acids, are also a
good source of biodiesel. Economic factors are of great importance in the
commercial viability of biofuel production in Mexico (Sun et al., 2011). The
cost of producing micronutrients also depends on various factors, such as bi-
omass yield, oil content, and the scale of the production system. The eco-
nomic viability of molecular biofuel production lies in improving the biomass
content. Natural carbon requirements, and natural alternatives, make micro-
algae one of the best sources of biofuel (Chesty, 2007). Nutrition of marine
organisms under culture conditions is also one of the most important chal-
lenges for improving performance and ensuring production processes. In this
study, which examined the use of N. oceanica biomass residues as a protein
source for red tilapia larvae, the results were similar to those obtained by Ery-
alcin and Yildz (2015), who used N. oculata to feed seabream larvae and
found that the biochemical components of the larvae were higher, as in our
study, due to the different fish species and the use of the algae as whole-cell
components. It was also close to the results of El-Sheekh et al. (2014) when
using spirulina in the diet improved the biochemical composition of red ti-
lapia. More recent studies, Elkassas et al. (2016) and Ashour et al. (2019),
also investigated the growth and survival of Artemia franciscana, which
showed significant increases when fed on lipid-extracted algal residues. This
strategy is consistent with our results, which should be a significant achieve-
ment and confirms that the remaining algal biomass can be widely used for
aquaculture nutrition.
CONCLUSION
From the results in this study, the authors suggested that in terms of cost-
effectiveness and commercial availability, poultry manure extract (PM) was
preferred as a suitable carbon and nitrogen source at 75:25% with better F/2
medium than lactose for large-scale commercial cultivation of microalgae
N.oceanica and biodiesel production, and they also recommended the use of
the remaining 75% fat-free biomass as feed to improve red tilapia culture
REFERENCES