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Fat tailed sheep breeds are known for their adaptation to nutritional stress, among other harsh production conditions. Damara sheep, native to Southern Africa, have recently been exported to other areas of the world, particularly Australia, aiming to produce lamb in semi-arid regions. Damaras have a unique hanging fat tail, a fat depot able to be mobilized under nutritional stress. In this article we perform an in-depth characterization of the fatty acid profiles of the fat tail in underfed and control Damara rams. Profiles were very similar between experimental groups, with the exception of palmitic acid (16:0) that was lower (P = 0.014) in underfed animals. However, the most striking result was the very high proportions of non-terminal branched chain fatty acids found in the fat tail adipose tissue, as well as the gastrocnemius muscle of Damara rams. The muscle of Dorper and Merino rams used in the same experiment did not present non-terminal branched chain fatty acids, suggesting that Damara rams have a unique lipid metabolism. Herein, we interpret this trait relating it to a higher ability of Damara sheep to digest fibrous fodder and to putative differences in the propionate metabolism by comparison to other sheep breeds.

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Common pheasant (Phasianus colchicus) is a species with potential to produce high quality meat. Rearing these birds in semi-extensive regime for other purposes than just for hunting has drawn producers' attention. This study aimed to evaluate the lipid and protein composition of breast and leg meat from male and female pheasant. Meat portions exhibited significant differences between total lipid (1.3 and 3.5 g/100g), total cholesterol contents (0.5 and 0.57mg/g), fatty acids profile, protein content (89 and 82% dry weight) and amino acids profile, not related with sex. The amino acids content tended to be slightly higher in leg, being comparable to farmed pheasants. Lysine was the prevailing essential amino acid (EAA) in both portions, which are also an exceptional arginine source. Pheasant meat is an interesting source of high quality lean protein, being a healthier alternative to other frequently consumed meats.