Canadian National Dairy Study: Heifer calf management

Journal of Dairy Science
Charlotte B WinderD F Kelton

Abstract

In the past decade, substantial changes have occurred in the way dairy heifer calves are managed. The objectives of this study, part of phase I of the 2015 Canadian National Dairy Study, were to examine heifer calf health and adoption of rearing practices, and to explore factors associated with different rearing strategies on Canadian dairy farms. The questionnaire was open to all licensed dairy producers in Canada and had a 12% response rate (n = 1,373). Fifty-one percent of respondents reported never allowing heifer calves to nurse their dam, and 17% always removed calves within 30 min of birth. Sixty-seven percent reported always feeding heifer calves 4 L of colostrum within 12 h of birth; 17% always fed colostrum between 2100 and 0400 h; 5% pasteurized all colostrum fed on farm. Seventy-seven percent of respondents reported calving and stillbirth information for 2014; the mean reported stillbirth rate was 4.9% (SD = 3.3). Forty percent housed calves in individual pens, 34% in group pens, 21% in individual hutches, 2% reported tethering calves, and 1% used group hutches. Of those who housed calves in groups, 59% reported a maximum group size of 3 to 10 calves, 31% reported a pair (2) of calves per pen or hutch, and 10% repor...Continue Reading

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Feb 6, 2018·Journal of Dairy Science·Christine L SumnerDaniel M Weary

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Citations

Mar 11, 2019·Journal of Dairy Science·J E LombardJ Maas
Nov 24, 2020·Journal of Dairy Science·S M RocheD F Kelton
Mar 21, 2021·Journal of Dairy Science·Jannelle MorrisonCharlotte B Winder
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Lucia HoltshausenKaren A Beauchemin
Aug 9, 2021·Journal of Dairy Science·Julia SaraceniJennifer M C Van Os
Aug 28, 2021·Animals : an Open Access Journal From MDPI·Laura WhalinMarina A G von Keyserlingk

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