Computer-controlled milk feeding of dairy calves: the effects of number of calves per feeder and number of milk portions on use of feeder and social behavior

Journal of Dairy Science
M B Jensen

Abstract

One hundred ninety-two calves (Holstein-Friesian, Danish Red, and Jersey) were allocated to either groups of 24 calves or groups of 12 calves with one computer-controlled milk feeder per group. Within group, one-half of the calves were offered the daily milk allowance in either 4 or 8 milk portions. In groups with 24 calves, there was a higher level of competition for access to the feeder than in groups with 12 calves. Calves waited longer for access, and while occupying the feeder, they were more often disturbed by other calves attempting to access the feeder. The increased level of competition resulted in a higher rate of milk ingestion among calves in groups of 24 and, as a result, a lower duration of time spent ingesting the milk and a lower occupation of the feeder per calf. The number of calves per feeder did not affect the amount of milk ingested, but the high level of disturbance and the increased feeding rate with 24 calves per feeder suggest that these calves were subject to social constraint. Offering the same milk allowance in 4 rather than 8 milk portions lowered the occupancy of the feeder. The number of portions did not affect the duration of ingesting milk, but the duration of occupying the feeder just after mil...Continue Reading

References

Feb 1, 1995·Journal of Dairy Science·N LivshinY Edan
Apr 20, 2001·Applied Animal Behaviour Science·A M. de Passillé

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Citations

Mar 29, 2014·Animal : an International Journal of Animal Bioscience·I DavidJ-L Weisbecker
Sep 25, 2017·Journal of Dairy Science·Margit Bak Jensen, Kathryn L Proudfoot
May 17, 2006·Journal of Dairy Science·M A G von KeyserlingkD M Weary
Nov 16, 2006·Journal of Dairy Science·C SvenssonS-O Olsson
Oct 22, 2013·International Journal of Biometeorology·Iulian TriponEvangelia N Sossidou
Jun 3, 2017·Journal of Dairy Science·Catalina Medrano-GalarzaDerek B Haley
May 8, 2018·Journal of Dairy Science·Heather W NeaveMarina A G von Keyserlingk
Jul 30, 2018·Journal of Dairy Science·Catalina Medrano-GalarzaDerek B Haley
Jul 28, 2020·Journal of Dairy Science·Joao H C CostaHeather W Neave
Oct 7, 2020·Animals : an Open Access Journal From MDPI·Eugénie DuvalBenjamin Lecorps
Jun 29, 2021·Journal of Dairy Science·E E LindnerE K Miller-Cushon

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