Proximate composition, fatty acid analysis and protein digestibility-corrected amino acid score (PDCAAS) in three commercially important cephalopods of the Mediterranean sea (cuttlefish, octopus and squid) were determined. The results of the proximate analysis showed that these species had very high protein:fat ratios similar to lean beef. Docosahexaenoic, palmitic and eicosipentaenoic acid were the most abundant fatty acids among analyzed species. The amount of n-3 fatty acids was higher than that of saturated, monounsaturated and n-6 fatty acids. Despite the fact that cephalopods contain small amounts of fat they were found quite rich in n-3 fatty acids. Finally, PDCAAS indicated that these organisms had a very good protein quality.
Thirty-eight lamb drafters estimated carcass tissue depth GR and carcass weights on 23 live lambs. The lambs were slaughtered and their carcasses were measured for GR and weight. The best drafters (26%) were able to rank the lambs moderately well for GR (R2 ~ 0.7), and almost half could rank the lambs well for carcass weight (R2 > 0.9). All drafters underestimated GR values (on average-4.2 mm) but overestimated lean carcasses and underestimated fatter carcasses. Their estimates of carcass weights were very much closer (average underestimate 1.6 kg) to the measured carcass weights. These results show the need for drafter training in the recognition of relative fatness in live lambs and suggest the desirability of having a simple measuring instrument to assist with this task.
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