Production and cow-traffic management during the pasture season in large herds with automatic milking

Bijeenkomst: EGF2015
Auteur: Spörndly E. and Karlsson M.
ISBN: 978-9090-289-61-8
Jaar van uitgifte: 2015
Producttype: Paper
A field study on management during the pasture season was conducted on 20 Swedish farms with at least two automatic milking (AM) units and over 130 cows registered in the official control system. The objective was to compare milk production during indoor and pasture seasons, and to study cow traffic management during the pasture season. Using data from the official monthly control milkings, average yield of milked cows during winter (November-March) and summer ( June-August) seasons were analysed using a mixed model with farm as repeated subject and season as variable. Days in milk and cows per robot were tested in the model but were non-significant. Milk yield was 30.1 and 28.4 kg energy corrected milk in winter and summer season, respectively (P