Influence of the frequency of feeding hay to grass
on chewing activity and ruminal pH-fluctuation
in dairy cows

F. Dohme; C. M. Graf; M. Kreuzer

doi:10.22358/jafs/73738/2004

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About the Journal Editorial Office Editorial Board Copy right and self-archiving policy Peer review process Instructions for Reviewers Printed version subscription Abstracting and indexing Contact

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Suppl. 1/2004 vol. 13

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Influence of the frequency of feeding hay to grass on chewing activity and ruminal pH-fluctuation in dairy cows

F. Dohme ¹

C. M. Graf ¹

M. Kreuzer ²

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Agroscope Liebefeld-Posieux, Swiss Federal Research Station for Animal Production and Dairy Products (ALP), Tioleyre 4, CH-1725 Posieux, Switzerland

Institute of Animal Science, Animal Nutrition, Swiss Federal Institute of Technology (ETH), ETH-Zentrum, CH-8092 Zurich, Switzerland

Publication date: 2004-08-30

Corresponding author

F. Dohme

Agroscope Liebefeld-Posieux, Swiss Federal Research Station for Animal Production and Dairy Products (ALP), Tioleyre 4, CH-1725 Posieux, Switzerland

J. Anim. Feed Sci. 2004;13(Suppl. 1):59-62

DOI: https://doi.org/10.22358/jafs/73738/2004

KEYWORDS

ruminal pH fluctuation

ABSTRACT

Six ruminally cannulated cows were used in a double 3×3 Latin square design to investigate the influence of the frequency of hay feeding to a grass diet on chewing activity and ruminal pH fluctuation. Feeding hay for three times instead of all at once did not influence chewing activity but there was a trend towards a more stabilising effect concerning ruminal pH fluctuation. As no reduction in milk fat and no disorders of rumen function were observed, it seems not to be necessary to supplement a pure grass diet with hay to improve its physical fibrousness.

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