Abstract
The effect of supplementation with corn oil (CO) and its mixture with palm kernel oil (CO:PKO 75:25) to grazing cows on ruminal fermentation, milk yield, and its fatty acid (FA) profile was evaluated. The treatments were: one control treatment (C) without oil and two treatments with 720 g d−1/cow of CO or CO:PKO (ether extract: 22.7 g kg−1 for control treatment, 66 g kg−1 for CO, and 65 g kg−1 for CO:PKO). Six multiparous Holstein cows (6.3±1.8 yr, 597±11.5 kg [...]
Highlights
Addition of lipids to diets of grazing dairy cows may increase milk yield and change milk composition and its fatty acid (FA) profile (Khanal and Olson, 2004; Schröeder et al, 2004)
High levels of long chain polyunsaturated FA lipids increase trans-vaccenic (18:1t11; TVA) and conjugated linoleic acids (18:2c9 t11; CLA) in milk, which are considered functional for their positive effects on human health (Druart et al, 2014; Lim et al, 2014; Yang et al, 2015)
The addition of oils decreased the concentration of volatile fatty acids (VFA) (P
Summary
Addition of lipids to diets of grazing dairy cows may increase milk yield and change milk composition and its fatty acid (FA) profile (Khanal and Olson, 2004; Schröeder et al, 2004). Response depends on dose and fatty acid profile. Supplementing saturated lipids increases milk fat, while unsaturated rich FA lipids decrease it (Schröeder et al, 2004). High levels of long chain polyunsaturated FA lipids increase trans-vaccenic (18:1t11; TVA) and conjugated linoleic acids (18:2c9 t11; CLA) in milk, which are considered functional for their positive effects on human health (Druart et al, 2014; Lim et al, 2014; Yang et al, 2015). Ruminal biohydrogenation of oils rich in linoleic acid (18:2c9 c12)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
