Feeding wheat dried distillers’ grains with solubles increases conjugated linoleic acid and unsaturated lipids in ovine milk without adversely affecting milk yield

Abstract The aim of this research communication was to examine the effect dietary supplementation with wheat-based dried distillers’ grains solubles (DDGS), a by-product bioethanol production, on yield, composition, and fatty acid (FA) profile ewe milk. Forty-five purebred mid-lactating Chios ewes (average milk yield 2.23 kg/d in 96 ± 5 d lactation) were offered three iso-nitrogenous iso-energetic diets (15 animals per diet) for 10 adaptation period followed by 5-week recording sampling period. contained 0, 6, 12% DDGS DM basis DG0, DG6, DG12 treatment, respectively, as replacement concentrate mix, whilst concentrate-to-forage ratio remained at 60:40 all treatments. Individual FA recorded weekly analyzed using complete randomized design repeated measurements. No significant differences observed among groups concerning dry matter intake (overall mean 2.59 kg/d), or 6% fat-corrected protein percentage yield. Milk fat decreased (4.76%) compared DG0 (5.69%) without, however, significantly affecting daily output fat. concentration major saturated between C4:0 C16:0 reduced, whereas long-chain (>16 carbons), mono-unsaturated poly-unsaturated FAs increased groups. Among individual FA, increments oleic C18:1 trans -monoenes like -10 -11 demonstrated group, linoleic conjugated (CLA cis- 9, -11) elevated both control. Changes resulted decline atherogenic index 20% 35% DG6 treatments, In conclusion, feeding dairy levels unsaturated that are potentially beneficial human health without adversely milk,