The DJ cows were characterized by higher levels of saturated short-chain FA in contrast, DH cows had higher content of unsaturated C18 FA, whereas higher levels of primarily C14:0, C14:1, C18:1 cis-9, and C18:3n-3 were evident in SR cows. Based on the 17 individual FA determined, distinct FA profiles were observed for all breeds using univariate and multivariate statistics.
The fatty acid (FA) composition of milk was determined by gas chromatography and the content of α-tocopherol by HPLC. In total, milk samples from 1,298 cows kept in indoor housing systems were collected from 61 conventional dairy herds in Denmark and Sweden. Here, the effect of feed and herd was examined in 3 Scandinavian breeds, namely Danish Holstein-Friesian (DH), Danish Jersey (DJ), and Swedish Red (SR).
The composition of milk fat from dairy cows is related to both genetic and environmental factors.
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