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http://dx.doi.org/10.11625/KJOA.2017.25.1.219

Effects of Feeding Organic Diets with Different Fatty Acid Composition Ratio on CLA and Fatty Acid Contents in Raw Milk of Holstein-Friesian Dairy Cows  

Nam, In-Sik (한경대학교 고품질친환경축산연구센터)
Lim, Yang-Cheon ((주)오린, 한경대학교 동물생명환경과학과)
Nam, Ki-Taeg (한경대학교 동물생명환경과학과)
Publication Information
Korean Journal of Organic Agriculture / v.25, no.1, 2017 , pp. 219-231 More about this Journal
Abstract
The aim of this study was to determine the effects of feeding of different organic diets (based on fatty acid contents) on CLA and fatty acid concentration of raw milk. Total two hundred and ninety Holstein cows were divided into control, treatment 1 and treatment 2 groups according to the parity and milk yield. Control diet was contained higher C16:00, C18:2 and SFA. Treatment 1 diet was higher in C18:1, C18:2, UFA and treatment 2 diet was higher in MUFA and C18:3 and PUFA. The results indicated that the C16:0 concentration in raw milk was greater in the group of treatment 2 than in control and treatment 1 (p<0.05). The concentration of CLA in treatment 2 was higher compared to treatment 1 and control groups (p<0.05). The ration of n-3/n-6 was higher in treatment 2 group compared with control and treatment 1 (p<0.05). In conclusion, feeding 100% of grass feed for dairy cows increases CLA and n-3 content in milk. From now on, basis on our study, development of functional milk will increase a health of children and old people.
Keywords
CLA; fatty acid; lactating cow; organic feed; raw milk;
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