Effects of Crushed Linseed or Linseed Oil Supplementation on Performance of Dairy Goats and Fatty Acids Profile in Milk Top of Form

Abstract

In a complete random block design, fifteen lactating Damascus goats (43.5±2 kg body weight) after the first week of lactation, were divided into 3 groups (five goats each) to evaluate effect of linseed or linseed oil as diet supplement on rumen parameters, milk production, milk composition and milk fatty acid profile in lactating goats. Animals were fed on a total mixed ration of 50% concentrates and 50% berseem clover (control), control ration+50g/head/day crushed linseed (LS) and control ration+20 ml/head/day linseed oil (LO) for 90 days. Dry matter intake was not affected by LO or LS. Ruminal volatile fatty acids (VFA) and butyrate proportions were increased (P 0.05) with experimental additives. Milk yield, milk protein and milk fat percent were higher (P 0.05) the proportion of C18:3N3 in milk fat. Total unsaturated fatty acids were increased (P<0.05) with LO; however, insignificantly increased with LS versus control. The proportions of conjugated linoleic acid increased (P<0.05) with addition of LO or LS in the diet. It may be concluded that adding the linseed or linseed oil to lactating goat rations improved the productivity of lactating goats and enhance milk components with no deleterious effects on general health. (S.M. Kholif, T.A. Morsy, O.H. Matloup, H.M. Ebeid, A.M. Kholif. Effects of Crushed Linseed or Linseed Oil Supplementation on Performance of Dairy Goats and Fatty Acid Profile in Milk. Life Sci J 2015;12(2s):94-99). (ISSN:1097-8135). http://www.lifesciencesite.com . 14