Liver oil of pharaoh cuttlefishSepia pharaonisEhrenberg, 1831 as a lipid source in the feed of giant freshwater prawn,Macrobrachium rosenbergii(De Man 1879)

Abstract

The efficacy of pharaoh cuttlefish (Sepia pharaonis Ehrenberg, 1831) liver lipid in the feed for juveniles of giant freshwater prawn Macrobrachium rosenbergii (De Man 1879) was tested by feeding five experimental diets prepared using clam meat, groundnut oil cake, wheat bran, tapioca powder, vitamin–mineral mixture and cellulose powder as the major ingredients. The test diets T1, T2, T3, T4 and T5, containing five levels (1, 2, 3, 4 and 5%, respectively) of lipid, extracted from the liver of pharaoh cuttlefish, were fed to 30‐day‐old prawn juveniles for 60 days, in triplicates and compared against a control. Analysis of variance of the growth parameters showed that the juveniles fed with T2, containing 2% cuttlefish liver lipid with a total lipid content of 9.85% and lipid–carbohydrate ratio of 1 : 3.8, showed significantly better growth (P < 0.05) with the highest weight gain of 118%, greatest food conversion and protein utilization efficiency, and the highest body protein content, although the survival rates remained unaffected among treatments. Growth of the juveniles, however, declined at lipid levels >2%. Addition of cuttlefish liver lipid led to an increase of ω‐3 and ω‐6 fatty acids in T2, the proportion of ω‐6 being higher than the former. The crude lipid content of the body of test animals also increased with the increase in dietary lipid from 1.51% in T1 to 3.27% in T5. The present study indicates that cuttlefish liver lipid can be successfully used as a substitute for conventional lipid sources in rearing juveniles of giant freshwater prawn, an eco‐friendly practice in recycling cuttlefish waste – a discarded fishery by‐product.

Comparative Study of Nutritional Values of Edible Viscera Mediterranean Mollusks Gastropods hexaplex trunculus and bolinus brandaris. Hypobranchial glands inhibit Human Glioblastoma U87 Tumor Cells Adhesion and Proliferation

“…Saturated fatty acid represented only 33.4 % [5]. These results correlate with those found in the hepatopancreas of the cuttlefish where the rate of C16: O was 19.23 % [20]. Solid viscera of Sepia officinalis have a lipid content 4.8 ± 0.7 g /100g of fresh material distributed in 40% of saturated fatty acid and 36.39% mono-insatureted fatty acid.…”

Mediterranien cuttlefish sepia officinalis squid ink is cytotoxic but does not inhibit Glioblastoma U87 tumor cells proliferation, with high nutritional values of edible viscera

“…These marine-derived oils are rich in polyunsaturated fatty acids and contribute at the prevention of atherosclerosis through their antioxidant action. They also play a role in the prevention of aging and promote healthy growth and good development of the fetus and infant [21]. This low percentage of lipid could be explained by the fact that the gland contains a big enzyme activity used for melanin genesis [22].…”

Complete mitochondrial genome of the common cuttlefishSepia pharaonis(Sepioidea, Sepiidae)

“…Living in the warm waters, it is being commercially exploited for the reason of highly nutritious meat, fast growth rate and huge export values (Shyla et al, 2009). We expect that the present result will facilitate the further investigations of the phylogenetic relationships, taxonomic resolution and phylogeography of the Sepiidae.…”