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The effects of tannin extract and linseed oil on yield, physicochemical characteristics and fatty acid profile of ewe milk
Author(s) -
Valizadeh Yonjalli Roghayeh,
Mirzaei Aghjehgheshlagh Farzad,
Mahdavi Ali,
Navidshad Bahman,
Staji Hamid
Publication year - 2020
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/1471-0307.12716
Subject(s) - linseed oil , polyunsaturated fatty acid , food science , tannin , conjugated linoleic acid , fatty acid , chemistry , antioxidant , linoleic acid , linolenic acid , biochemistry
Dietary intervention is a well‐recognised approach to modifying milk yield and physicochemical characteristics. This study aimed to evaluate the effects of supplementing ewes’ diet with tannin and/or linseed oil on the physicochemical characteristics and fatty acid profile of milk, as well as the antioxidant status of dairy ewes. The study involved 36 3‐year‐old lactating Moghani sheep randomly assigned to six treatment groups. Results demonstrated that tannin extract and linseed oil changed the fatty acid content of milk. In particular, unsaturated fatty acids and conjugated linoleic acid were increased by the treatments ( P < 0.05). Generally, groups receiving tannin extracts and/or oil showed higher concentrations of unsaturated fatty acids in their milk, especially polyunsaturated fatty acids including C18:3n3, C20:2, C20:3n3, C20:4n6, CLA cis‐9 trans‐11, CLA trans‐10 cis‐12, C22:2 and total unsaturated fatty acids.