Failure to improve energy balance or dehydration by drenching transition cows with water and electrolytes at calving |
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Authors: | J M D Enemark H B Schmidt J Jakobsen C Enevoldsen |
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Institution: | (1) Department of Large Animal Sciences, Large Animal Medicine and Surgery, University of Copenhagen, Hoejbakkegaard Alle’ 5, DK-2630 Taastrup, Denmark;(2) Skaerbaek Animal Clinic, Soendervang 20, DK-6780 Skaerbaek, Denmark;(3) Grindsted Animal Clinic, Trehoejevej 9, DK-7200 Grindsted, Denmark;(4) Department of Large Animal Sciences, Production and Health, University of Copenhagen, Groennegaardsvej 2, DK-1870 Frederiksberg C, Denmark |
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Abstract: | The disease risk is very high among transition cows that may suffer from poor appetite. The aim of the present study was therefore
to investigate the effect of drenching on energy balance, hydration state and selected production parameters in fresh cows.
Twenty-one Danish Holstein-Friesian dairy cows in late pregnancy were randomly allocated to either treatment (TG) or control
group (CG). TG cows were drenched twice with 20l of water containing a mixture of calcium propionate, MgSO4, and KCL specifically developed for prophylactic treatment of fresh cows. The results indicated that cows become dehydrated
around calving, losing on average 53l (TG) and 24.5l (CG) of extra-cellular fluid, respectively. The drenching volume applied
in the present study did not affect the degree of hydration after calving. Based on blood NEFA and BHB values it was shown
that drenching caused a reduction in the degree of negative energy balance (NEB). Somatic cell count (SCC) for cows in first
lactation was lower in the TG compared to CG. Milk yield was unaffected by treatment. We conclude that prophylactic drenching
added little to the health promotion in the transition cows in the present study. Instead, increased focus on management routines
would probably be of more value. |
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Keywords: | Transition cows Post partum period Energy balance Drenching |
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