Influence of fish oil in the concentration of conjugated linoleic acid and omega 6 and 3 in buffalo milk

• Main Authors: E.M. Patiño, M.A. Judis, M. Sanchez Negrette, D.O. Pochon, J.F. Cedres, G. Rebak, A.M. Romero, M.M. Doval, G.A. Crudeli
• Format: Article
• Language: English
• Published: Universidade Federal de Minas Gerais 2012-04-01
• Series: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
• Subjects: Bubalus bubalis; leite; CLA; ômega 6 e 3; óleo de peixe
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000200024&lng=en&tlng=en

The aim of this research work was to investigate the influence of fish oil supplementation on the concentration of conjugated linoleic acid (CLA) and omega 6 and 3 in samples of buffalo milk. A total of 24 female buffaloes separated at random into three groups were fed for 49 days with: natural pasture (group I), supplemented with 70mL of fish oil (group II) and 140mL of fish oil (group III). In the experiment the concentration of CLA showed differences (P<0.05) among the three groups, with a maximum of 7.14mg/g fat in group II. No significant differences were found in omega-6 among the three groups. The highest value of 3.82mg/g fat corresponded to group I, whicht had not been supplemented with fish oil. Significant differences were observed in omega 3 (P<0.05) in groups II and III with respect to group I. The highest average value of 2.42mg/g fat was obtained in group III. The closest relationship omega 6/3 (1.37:1) was observed in group III. As a result, the diets of groups II and III, which included fish oil, increased significantly the content of CLA and omega 3 with reductions in levels of omega 6.