Does the location of concentrate provision affect voluntary visits, and milk and milk component yield for cows in an automated milking system?

K. Hare; T.J. DeVries; K.S. Schwartkopf-Genswein; G.B. Penner

doi:10.1139/cjas-2017-0123

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3 February 2018 Does the location of concentrate provision affect voluntary visits, and milk and milk component yield for cows in an automated milking system?

K. Hare, T.J. DeVries, K.S. Schwartkopf-Genswein, G.B. Penner

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Canadian J. of Animal Science, 98(2):399-404 (2018). https://doi.org/10.1139/cjas-2017-0123

Abstract

Eight Holstein cows were used in a cross-over design to test whether concentrate allocation in an automated milking system (AMS) affects dry matter intake (DMI) and milk production. Cows were fed a high-energy partial mixed ration (HE-PMR) with 0.5 kg of AMS concentrate or a low-energy PMR (LE-PMR) with 5.0 kg of AMS concentrate. The AMS concentrate intake was greater and PMR intake was reduced for LE-PMR than HE-PMR. Milk, fat, and protein yields were not affected by treatment. In a guided-traffic flow barn, providing a PMR with greater energy density increases DMI, but has no effect on milk and milk component yield.

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K. Hare, T.J. DeVries, K.S. Schwartkopf-Genswein, and G.B. Penner "Does the location of concentrate provision affect voluntary visits, and milk and milk component yield for cows in an automated milking system?," Canadian Journal of Animal Science 98(2), 399-404, (3 February 2018). https://doi.org/10.1139/cjas-2017-0123

Received: 14 August 2017; Accepted: 10 December 2017; Published: 3 February 2018

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