The Relationship between Environmental Conditions and Bovine Udder Diseases in Norwegian Dairy Herds

Tramped Teats – Clinical Mastitis Disease Complex in Tied Cows. Environmental Risk Factors and Interrelationships with Other Diseases

“…For tramped teats and udder injuries the effect of parity was similar for both systems but a larger increase in risk of clinical mastitis with parity was found in farms with liquid manure system. These results are in agreement with Bakken (1982), Curtis et al (1985) , , Pearson & Mackie (1979), Saloniemi (1980), all indicating increased incidence of mastitis and /or other udder problems with age.…”

“…It was found that the risk of udder injuries and of clinical mastitis was 1.3 and 1.2 times higher for cows in herds with liquid manure system than in herds with solid system. These results are in ag greement with Grommers et al (1972), Karlsson & Gustafsson (1977) and Bakken (1982), all reporting adverse effects associa ted with liquid manure systems on udder health.…”

“…Quantitative knowledge with respect to the effect of all potential risk factors associated with clinical mastitis is needed in order to improve farmer 's ability to control this disease and minimise economic losses. Bakken (1982) reported that 26 % of the variation in subclinical mastitis could be explained by variation in the environment. Ekesbo (1966), Grommers et al (1972) and Karlsson & Gustafsson (1977) have shown that environmental factors such as stall length, amount and type of bedding used, construction of the feed barrier and other factors play an important role with respect to udder health.…”

Comparison of Ketosis, Clinical Mastitis, Somatic Cell Count, and Reproductive Performance between Free Stall and Tie Stall Barns in Norwegian Dairy Herds with Automatic Feeding

“…Although less clinical mastitis has been found in free stall housing systems than in herds with tie stalls (Bakken 1981 ), the relationship between potential confounding factors such as feeding procedure, hygiene, floor type, use of litter, and disease in free stall systems has not been assessed statistically due to the small number of herds with free stalls. Bovine mastitis, the most common disease of Norwegian dairy cows, is considered to be highly influenced by the environment, and up to 25% of the variation in subclinical mastitis between herds has been attributed to variation in the cows' environment (Bakken 1982). Ketosis is the second most common disease of Norwegian dairy cows, with an estimated incidence of 18.4 cases per I 00 cow-years reported to the Dairy Cow Recording System (DCRS) in 1994 (0sterds et al 1994).…”

Scientific report on the effects of farming systems on dairy cow welfare and disease

“…However, the study did not accurately take into account the effect of the whole herd. Bakken (1982) found in a study of 300 herds in Norway that the prevalence of sub clinical mastitis was significantly higher in herds using cow trainers. Österås and Lund (1988) studied 158 herds in Norway with high cell counts or high incidence of mastitis.…”