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Research on protein use for dairy cow

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Lowering protein levels and increasing fermentable carbohydrates in concentrates fed to dairy cows on pasture may boost nitrogen use efficiency an reduce emissions into the environment, say researchers

Research: Forage and protein use efficiency in dairy cows grazing a mixed grass-legume pasture and supplemented with different levels of protein and starch by U.Dickhoefer, S.Glowacki, C.A.Gómez, J.M.Castro-Montoyaa

Highlights
• Lowering dietary protein supply may not reduce animal feed intake and performance.

• Starch-rich supplements may reduce digestibility in cows on high-quality pastures.

• Feeding low-protein supplements reduce urinary nitrogen excretion in grazing cows.

• Forage protein supply is sufficient in low-performing cows on grass-legume swards.

Source : Livestock Science

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