Milk composition in Damascus, Mamber and F1 Alpine crossbred goats under grazing or confinement management

•The study presents the effect of diet and breed on milk composition of dairy goats.•Grazing goats produced milk with higher protein and lower urea content.•Goats in pasture produced milk with 20% higher omega 3 content.•A favorable ratio between Ω6/Ω3 FA was achieved by Damascus pasture goats.