Spent coffee ground (SCG) is a byproduct of coffee beverage preparation and a potential source of carbohydrate, protein, and phenolic compounds for livestock feeding. In this study, the effects of SCG supplementation in the diet of lactating goats on milk production traits and health status were studied. The antioxidant status of blood and milk was also evaluated. Twenty-four Saanen goats were fed a total mixed ration containing commercial concentrate, soybean, and haylage; they were divided into three groups: control diet (CON), SCG50 (50 g/d SCG), and SCG100 (100 g/d SCG). The experiment lasted 6 weeks. Linear and quadratic contrasts were used to evaluate the effects of the byproduct doses. SCG supplementation did not affect milk production, but influenced some milk fatty acids. SCG supplementation increased the contents of C18:1, cis-9, trans-11 C18:2, odd and branched-chain fatty acids, and total conjugated linoleic acid. Most of the haematological and biochemical parameters were...

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