Comparison of milk production of dairy cows kept in cold and warm loose-housing systems

C. Schnier*, S. Hielm, H. S. Saloniemi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A retrospective cohort study was conducted to test whether the lactation curves of cows kept in cold loose-housing systems (CLHs) were the same as for cows in warm loose-housing systems (WLHs) in the Nordic countries. Approximately 40 000 test-day records from 5366 Ayrshire or Black and White cows kept on 38 CLHs and 166 WLHs in Finland during 1996 and 1997 were used. Analysis used a random-coefficient model (correcting for parity, breed and calving-year-season and the correlation-structure between test-days of the same cow and cows of the same herd). Cows in a CLH produced up to 11 less milk per test-day, but this difference was not statistically significant. Surprisingly, the difference in milk yield was not affected by calving-year-season, parity or breed.

Original languageEnglish
Pages (from-to)295-307
Number of pages13
JournalPreventive Veterinary Medicine
Issue number4
Publication statusPublished - 12 Dec 2003

Keywords / Materials (for Non-textual outputs)

  • Housing
  • Micro-climate
  • Milk yield
  • Random-coefficient model


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