Resumen

CEDRES, J.F et al. Ácidos grasos de lípidos intramusculares y grasa de cobertura en búfalos suplementados con aceite de pescado. Rev. vet. [online]. 2013, vol.24, n.2, pp.124-128. ISSN 1669-6840.

The purpose of this study was to investigate the influence of fish oil as dietary supplement on CLA and Ω6 and Ω3 fatty acids on both intramuscular lipids (IM) and layer fat (LF) in buffaloes. Twenty animals were randomly divided into two groups, fed on Brachiaria brizantha, 3 kg rice bran, 500 g corn and 500 g sunflower pellets for 60 days. Group I only received this diet while in group II each animal received the diet plus 100 ml fish oil every day. Results (in mg/g fat) indicated a decrease of palmitic acid in group II (189.05) in relation to group I (206.97) in IM and in the group II (259.72) in relation to group I (280.84) in LF. In IM, the CLA content of group II (17.09) showed an increase compared to group I (11.56). In LF the CLA content in group II (16.80) showed an increase in relation to group I (11.75). In IM the linoleic acid (18:2 n6) content of group II (23.45) decreased in relation to group I (38.19) and LF in the group II (13.21) increased slightly in relation to group I (12.71). In IM alfa linolenic acid (18:3 n3) content of groups I and II was very similar (8.37 and 8.69 respectively) and in LF was of 4.70 and 6.05 respectively. In IM of group II Ω6/Ω3 ratio was narrower (2.69:1) than in group I (4.55:1). Fish oil supplementation caused decrease of linoleic acid, improving the Ω6/Ω3 relationship. Furthermore, it caused a slight decrease of palmitic acid and slight increase of CLA.

Palabras clave : Buffalo; Fatty acids; Intramuscular and layer fat; Fish oil supplementation.

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