A Case Study of Behaviour and Performance of Confined or Pastured Cows During the Dry Period
Department of Animal Science, University of Tennessee, Knoxville, TN 37996, USA
Author to whom correspondence should be addressed.
Academic Editor: Clive J. C. Phillips
Received: 17 March 2016 / Revised: 29 June 2016 / Accepted: 8 July 2016 / Published: 13 July 2016
The objectives of this study were to determine the effect of the dry cow management system (pasture or confined) on: (1) lying behaviour and activity; (2) feeding and heat stress behaviours; (3) intramammary infections, postpartum. Non-lactating Holstein cows were assigned to either deep-bedded, sand freestalls ( n
= 14) or pasture ( n
= 14) using rolling enrollment. At dry-off, cows were equipped with an accelerometer to determine daily lying time (h/d), lying bouts (bouts/d), steps (steps/d) and divided into periods: far-off (60 to 15 d prepartum), close-up (14 to 1 d prepartum), calving (calving date) and postpartum (1 to 14 d postpartum). Respiration rates were recorded once weekly from dry off to calving from 1300 to 1500 h. Feeding displacements were defined as one cow successfully displacing another from the feed bunk and were recorded once per week during the 2 h period, immediately after feeding at 800 h. Pastured cows were fed a commercial dry cow pellet during far-off and total mixed ration during close-up, with free access to hay and grazing. Freestall housed cows were fed a total mixed ration at far-off and close-up. Cows housed in freestalls were moved to a maternity pen with a mattress at commencement of labour. Pastured cows calved in pasture. After calving, all cows were commingled in a pen identical to the freestall housing treatment. Cows housed in freestalls laid down for longer during far-off and close-up periods, had fewer lying bouts during the calving period and took fewer steps throughout the study period when compared to pastured cows. Freestall housed cows experienced more displacements after feeding than did pastured cows. Respiration rates increased with an increasing temperature humidity index, more in pastured cows than in freestall housed cows. Pastured cows altered their lying behaviour and activity, suggesting a shift in time budget priorities between pastured and confined dry cows. Pastured cows also experienced less aggression around feeding but may be more susceptible to heat stress.
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MDPI and ACS Style
Black, R.A.; Krawczel, P.D. A Case Study of Behaviour and Performance of Confined or Pastured Cows During the Dry Period. Animals 2016, 6, 41.
Black RA, Krawczel PD. A Case Study of Behaviour and Performance of Confined or Pastured Cows During the Dry Period. Animals. 2016; 6(7):41.
Black, Randi A.; Krawczel, Peter D. 2016. "A Case Study of Behaviour and Performance of Confined or Pastured Cows During the Dry Period." Animals 6, no. 7: 41.
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