Disease frequencies in dairy cows in Sweden. IV. ketosis |
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| Institution: | 1. Department of Animal Hygiene, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Skara, Sweden;2. Department of Economics and Statistics, Swedish University of Agricultural Sciences, Uppsala, Sweden;1. Veterinary Medical Research Institute, College of Veterinary Medicine, Iowa State University, Building 4, Ames, IA 50010, USA;2. Veterinary Physiology and Pharmacology, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, 4466 TAMU, College Station, TX 77843-4466, USA;1. Department of Population Medicine and Diagnostic Sciences, Cornell University, S3 110 Schurman Hall, Ithaca, NY 14853, USA;2. School of Veterinary Medicine, University of Wisconsin, 2015 Linden Dr., Madison, WI 53706, USA;1. Department of Pathobiology and Population Medicine, Mississippi State University College of Veterinary Medicine, PO Box 6100, 240 Wise Center Drive, Mississippi State, MS 39762, USA;2. Department of Comparative Biomedical Sciences, Mississippi State University College of Veterinary Medicine, PO Box 6100, Mississippi State, MS 39762, USA;3. Department of Clinical Sciences, Mississippi State University College of Veterinary Medicine, PO Box 6100, Mississippi State, MS 39762, USA |
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| Abstract: | An epidemiologic study of ketosis in dairy cows in Sweden covering approximately 125 000 calvings in 1268 herds is presented and various risk factors identified.The Swedish Red and White breed (SRB) had a higher incidence of ketosis than the Swedish Friesian breed (SLB). A positive report of parturient paresis, alone or in combination with a positive report of retained placenta increased the risk of ketosis in SRB cows. Simultaneous reports of parturient paresis and retained placenta increased the risk of ketosis in SLB cows. Tied cows of both breeds with pasture had a decreased risk during the months of pasture. The incidence of ketosis decreased with herd size, and tied zero-grazing cows had a higher incidence than loose-housed cows.Cows reported positive once for ketosis had an increased risk in subsequent calvings but no increased risk of removal during lactation. |
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