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Tramped Teats – Clinical Mastitis Disease Complex in Tied Cows. Environmental Risk Factors and Interrelationships with Other Diseases
Sjukdomskomplekset spentramp/klinisk mastit. Riskfaktorer i miljöen och samband med annan sjukdom hos bundna mjölkköer
Acta Veterinaria Scandinavica volume 31, pages 471–478 (1990)
Abstract
The effects of stall length, manure system, type of bedding and calving disorders on incidence rates of tramped teats, udder injuries, and clinical mastitis in Swedish Red and White tied cows, as well as interrelationships between these 3 disorders were investigated. Data used consisted of 370 herds, for a total of 45,133 cow records. Cows in herds with liquid manure system were at hihger risk of udder injuries and mastitis than in herds with solid system. Lower risk of both udder injuries and mastitis was found for cows in herds with short stall size (< 180 cm) compared to herds with stalls of 205–219 cm length. It was suggested that other factors, such as slipperiness of the stall floor and presence and type of feeding barrier, must be considered when the effect of stall characteristics on tramped teats is investigated. In farms with solid manure system cut straw or sawdust bedding increased the risk of tramped teats and mastitis relative to uncut straw. Parity and calving disorders were important risk factors for udder health and their effect was greater in herds with liquid manure system. Tramped teats and udder injuries were the most serious risk factors for clinical mastitis.
Sammanfattning
Inverkan av båslangd, gödselhanteringssystem och strömaterial studerades med avseende på incidensraten av spentramp, övriga juverskador och klinisk mastit under de 3 första månaderna efter partus hos 45133 SRB-kor i 370 besättningar.
Riskutvärdering gjordes beträffande kalvningssjukdom (dystokia, retentio secundarium, och paresis puerperalis) samt tvillingfödslar eller ej gentemot spentramp-övriga juverskador-mastitkomplexet liksom beträffande förhållandet mellan dessa 3 senare lidanden.
Större risk för övriga juverskador resp. för mastit förelag hos kor i besättningar med flytgödsel - an med fastgödselsystem.
I studien visade kor i besättningar med baslängd < 180 cm lägre risk for juverskador resp. mastit jämfört med kor på båslangderna 205–219 cm. Ingen signifikant skillnad förelag beträffande spentrampsfrekvenser. Det är dock troligt att andra faktorer, som båspallsytans strävhet (halkighet), ev. närvaro av och typ av foderbordsavstängning, bör tas med i beräkningen när effekten av baslängd på juverhälsan utvärderas.
Användning av hackad halm eller sågspån som strö ökade risken för spentramp resp. mastit jämfört med ej hackad halm.
Ålder uttryckt i antal förlossningar ökade risken för spentramp och mastit.
Dystokia ökade risken för spentramp och övriga juverskador, medan paresis puerperalis och retentio secundarium ökade risken för mastit. Spentramp och övriga juverskador var de största riskfaktorerna för mastit.
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Oltenacu, P.A., Bendixen, P.H., Vilson, B. et al. Tramped Teats – Clinical Mastitis Disease Complex in Tied Cows. Environmental Risk Factors and Interrelationships with Other Diseases. Acta Vet Scand 31, 471–478 (1990). https://doi.org/10.1186/BF03547530
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DOI: https://doi.org/10.1186/BF03547530