The effect of dairy cow feeding regime on functional milk production

Year 2019, Volume: 3 Issue: 1, 1 - 6, 15.04.2019

Habip Muruz , Nurcan Çetinkaya

Abstract

The purpose
of this paper is to evaluate nutritional strategies that will increase the
concentration of the conjugated linoleic acid in milk to produce functional
milk with regard to health benefits in dairy cow. Conjugated linoleic acid
isomers are naturel fatty acids in foods obtained from ruminants.The main
substrates for biohydrogenation are linoleic acid and linolenic acid, an
essential fatty acid. It has been identified 54 different conjugated linoleic
acid isomers that have beneficial biological activity. cis-9, trans-11 18:2   and trans-10,  cis-12
18: are most bioactive isomers of CLA. In milk fat, the cis-9, trans-11
conjugated linoleic acid is found in major amounts more than trans-10, cis-12 conjugated linoleic acid. Conjugated linoleic acid is first
produced as an intermediate product during the biohydrogention in the rumen of
dietary linoleic acid and linolenic acid. Another major pathway of conjugated
linoleic acid synthesis in dairy cows is endogenous synthesis in the mammary
gland. Dietary cis-9, trans-11 conjugated linoleic acid is of
great interest due to its health benefits known to a cancer chemopreventive and
antiatherogenic. Therefore, many researchers have looked for ways of increasing
the amount of conjugated linoleic acid in cow milk. For this pupurpose,
researchers have adopted two approaches. The
first approach is to make dietary changes to increased the natural conjugated
linoleic acid production of cow. The second approach is to feed with mixtures
of conjugated linoleic acid isomers protected against microbial biological
hydrogenation in the rumen. As a result, as consumers continue to be aware of
the relationship between diet and health, increased conjugated linoleic acid
level of milk may provide new market opportunities for milk and milk products
as functional food.

Keywords

Functional milk, Conjugated linoleic acid, Nutrition, Dairy cow

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