https://pubmed.ncbi.nlm.nih.gov/1578021/
"Feeding the protected canola supplement significantly reduced the proportions of saturated fatty acids C16:0, C14:0, and C12:0 in milk fat; there were corresponding increases in proportions of C18:0, C18:1, C18:2, and C18:3. Yield of C18 monounsaturated and polyunsaturated fatty acids increased by 54%, which is equivalent to 143 g/d."
An old study, but something to keep in mind. Our sacred cow, famous for making everything saturated, a last safe haven. Even the cows fat (at least in the dairy) is being manipulated. I would guess this stuff is in all the dried feed for the cows. Another reason to know your food source yourself.