What question did this study set out to answer?

To evaluate the impact of dietary red grape pomace silage on the performance and health of dairy goats.

May 29, 2026Animal Feed Science and Technology0 citationsOpen Access

Short-term effect of different inclusion levels of dietary red grape pomace silage on productive performance, milk composition, and health indices in dairy goats

MGMarina Galvez-LopezUniversitat de Miguel Hernández d'Elx DKDieu donné KiattiUniversity of Sassari AAA.S. AtzoriUniversity of Sassari

Key Points

To evaluate the impact of dietary red grape pomace silage on the performance and health of dairy goats.
Dairy goats fed diets with varying inclusion levels of ensiled red grape pomace (up to 18% DM)
Assessments of feed intake, milk yield, and metabolic responses
Compared results to standard ration for nutritional balance.
12% DM inclusion led to enhanced milk yield without increasing total feed intake
No changes in overall feed intake and acceptance when pomace replaced part of the ration
Polyphenol-rich RGP improved metabolic response linked to carbohydrate digestion.

Abstract

• Ensiled red grape pomace (RGP) shows strong potential as an alternative feedstock for dairy goat diets. • Up to 18% DM inclusion allowed nutritionally balanced diets comparable to a standard ration. • Feed intake and acceptance remained unchanged when pomace replaced part of the ration. • A 12% DM inclusion tended to enhance milk yield without increasing intake levels. • Polyphenol‑rich RGP improved metabolic response linked to carbohydrate digestion.

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