Effect of health status evaluated at arrival on growth in milk-fed veal calves: A prospective single cohort study

Journal of Dairy Science
D L RenaudT F Duffield

Abstract

The objective of this prospective single cohort study was to determine the effect of health status at arrival on growth in milk-fed veal calves. Upon arrival at the veal facility, calves were evaluated using a standardized health scoring system and weighed, and the supplier of the calf was recorded. The calves were followed until slaughter, when the hot carcass weight (HCW) was reported. To calculate average daily gain (ADG), the HCW was transformed into an estimated live weight, weight at arrival was subtracted, and this value was divided by the number of days on feed. A mixed linear regression model was created to evaluate the association of health status on arrival with the ADG throughout the production period. A total of 4,825 calves were evaluated at arrival; however, due to inconsistent HCW data from one slaughter plant, and 357 calves dying during the production period, 2,283 calves were used for analysis. In the final model, 7 variables were significantly associated with ADG. Housing location within the farm, method of calf procurement (drover or auction-derived calves versus direct delivery from local farms) and having a higher body weight at arrival were associated with a higher ADG. The season of arrival (summer or f...Continue Reading

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May 30, 2017·Journal of Dairy Science·D L RenaudD F Kelton

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Citations

Jul 21, 2020·Journal of Dairy Science·Devon J WilsonDavid Fraser
Mar 10, 2020·Journal of Dairy Science·L L DeikunK L Proudfoot
Oct 22, 2020·Animals : an Open Access Journal From MDPI·Maria Devant, Sonia Marti
Feb 23, 2021·Journal of Dairy Science·S BuczinskiM Villettaz-Robichaud
May 1, 2021·Frontiers in Veterinary Science·Katherine CreutzingerDavid Renaud
Jul 4, 2021·Preventive Veterinary Medicine·Atte SandelinHeli Simojoki

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