Identification of Risk Factors for Clinical Mastitis in Dairy Heifers

Journal of Dairy Science

Volumn 81, Issue 5, 1998, Pages 1275-1284

  Waage, S ^a   Sviland, S ^a   Odegaard S A ^b  

^a NORWEGIAN VETERINARY INSTITUTE   (Norway)

^b NORWEGIAN UNIVERSITY OF LIFE SCIENCES   (Norway)

Author keywords

Heifer; Mastitis; Risk factors

Indexed keywords

AGING; ANIMAL; ARTICLE; CATTLE; CATTLE DISEASE; CELL COUNT; CYTOLOGY; DIET; FEMALE; LACTATION; MILK; PREGNANCY; RISK FACTOR; SEASON; SILAGE;

AGING; ANIMALS; CATTLE; CELL COUNT; DIET; FEMALE; LACTATION; MASTITIS, BOVINE; MILK; PREGNANCY; RISK FACTORS; SEASONS; SILAGE;

EID: 0032063024     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(98)75689-9     Document Type: Article

References (31)

1. Aarestrup, F. M. and N. E. Jensen. 1997. Prevalence and duration of intramammary infection in Danish heifers during the peripartum period. J. Dairy Sci. 80:307-312.
2. Bendixen, P. H., B. Vilson, I. Ekesbo, and D. B. Åstrand. 1986. Disease frequencies of tied zero-grazing dairy cows and of dairy cows on pasture during summer and tied during winter. Prev. Vet. Med. 4:291-306.
3. Dodd, F. H., and F. K. Neave. 1951. Machine milking rate and mastitis. J. Dairy Res. 18:240-245.
4. Erb, H., R. D. Smith, P. A. Oltenacu, C. L. Guard, R. B. Hillman, P. A. Powers, M. C. Smith, and M. E. White. 1985. Path model of reproductive disorders and performance, milk fever, mastitis, milk yield, and culling in Holstein cows. J. Dairy Sci. 68:3337-3349.
5. Erskine, R. J., R. J. Eberhart, L. J. Hutchinson, S. B. Spencer, and M. A. Campbell. 1988. Incidence and types of clinical mastitis in dairy herds with high and low somatic cell counts. JAVMA 192:761-765.
6. Fox, L. K., S. T. Chester, J. W. Hallberg, S. C. Nickerson, J. W. Pankey, and L. D. Weaver. 1995. Survey of intramammary infections in dairy heifers at breeding age and first parturition. J. Dairy Sci. 78:1619-1628.
7. Hillerton, J. E., A. J. Bramley, and C. A. Watson. 1987. The epidemiology of summer mastitis; a survey of clinical cases. Br. Vet. J. 143:520-530.
8. Hillerton, J. E., M.F.H. Shearn, and J.G.H. West. 1995. Risk factors for summer mastitis. Pages 88-89 in Proc. 3rd Int. Dairy Fed. Int. Mastitis Sem., Tel Aviv, Israel. Int. Dairy Fed., Brussels, Belgium.
9. Hosmer, D. W., and S. Lemeshow. 1989. Applied Logistic Regression. John Wiley & Sons, New York, NY.
10. Jonsson, P., S. O. Olsson, A. S. Olofson, C. Fälth, O. Holmberg, and H. Funke. 1991. Bacteriological investigations of clinical mastitis in heifers in Sweden. J. Dairy Res. 58:179-185.
11. Khan, M. S., and G. E. Shook. 1996. Effects of age on milk yield: time trends and methods of adjustment. J. Dairy Sci. 79: 1057-1064.
12. Lam, T.J.G.M., Y. H. Schukken, J. H. van Vliet, F. J. Grommers, M.J.M. Tielen, and A. Brand. 1997. Effect of natural infection with minor pathogens on susceptibility to natural infection with major pathogens in the bovine mammary gland. Am. J. Vet. Res. 58:17-22.
13. Madsen, M., G. H. Sørensen, B. Aalbaek, J. W. Hansen, and H. Bjoørn. 1992. Summer mastitis in heifers: studies on the seasonal occurrence of Actinomyces pyogenes, Peptostreptococcus indolicus and Bacteroidaceae in clinically healthy cattle in Denmark. Vet. Microbiol. 30:243-255.
14. McDonald, J. S. 1982. Experimental infection of the bovine mammary glands during the dry period. Pages 112-124 in Proc. 21st Annu. Mtg. Natl. Mastitis Counc., Louisville, KY. Natl. Mastitis Counc., Inc., Arlington, VA.
15. Miller, R. H., R. E. Pearson, and B. T. Weinland. 1978. Relations of mastitis with milking rate and milking time. J. Dairy Sci. 61(Suppl. 1):129.(Abstr.)
16. Myllys, V. 1995. Staphylococci in heifer mastitis before and after parturition. J. Dairy Res. 62:51-60.
17. Myllys, V., and H. Rautala. 1995. Characterization of clinical mastitis in primiparous heifers. J. Dairy Sci. 78:538-545.
18. Nagelkerke, N.J.D. 1991. A note on a general definition of the coefficient of determination. Biometrika 78:691-692.
19. National Board of Animal Production Recording. 1989. Handbook for the Cow Production Recording Scheme. Norwegian Dairies Assoc., Ås, Norway.
20. Roberson, J. R., L. K. Fox, D. D. Hancock, C. C. Gay, and T. E. Besser. 1994. Coagulase-positive Staphylococcus intramammary infections in primiparous dairy cows. J. Dairy Sci. 77: 958-969.
21. Roberson, J. R., L. K. Fox, D. D. Hancock, C. C. Gay, and T. E. Besser. 1994. Ecology of Staphylococcus aureus isolated from various sites on dairy farms. J. Dairy Sci. 77:3354-3364.
22. SAS/STAT® Software: Changes and Enhancements, Release 6.11. 1996. SAS Inst., Inc., Cary, NC.
23. Schalm, O. W. 1942. Streptococcus agalactiae in the udders of heifers at parturition traced to sucking among calves. Cornell Vet. 32:49-60.
24. Schukken, Y. H., H. N. Erb, P. M. Sears, and R. D. Smith. 1988. Ecologic study of the risk factors for environmental mastitis. Am. J. Vet. Res. 49:766-769.
25. Schukken, Y. H., F. J. Grommers, D. van de Geer, H. N. Erb, and A. Brand. 1990. Risk factors for clinical mastitis in herds with a low bulk milk somatic cell count. 1. Data and risk factors for all cases. J. Dairy Sci. 73:3463-3471.
26. Schultze, W. D. 1985. Control of new intramammary infection at calving by prepartum teat dipping. J. Dairy Sci. 68: 2094-2099.
27. Shearer, J. K., and R. J. Harmon. 1993. Mastitis in heifers. Vet. Clin. North Am. Food Anim. Pract. 9:583-595.
28. Slettbakk, T., A. Jørstad, T. B. Farver, and D. W. Hird. 1990. Impact of milking characteristics and teat morphology on somatic cell counts in first-lactation Norwegian cattle. Prev. Vet. Med. 8:253-267.
29. Solbu, H. 1983. Disease recording in Norwegian dairy cattle. I. Disease incidence and non-genetic effects on mastitis, ketosis and milk fever. Z. Tierz. Zuechtungsbiol. 100:139-157.
30. Syväjärvi, J., H. Saloniemi, and Y. Gröhn. 1986. An epidemiological and genetic study on registered diseases in Finnish Ayrshire Cattle. IV. Clinical mastitis. Acta Vet. Scand. 27: 223-234.
31. Waage, S., H. Nordløkken, I. Røn, T. Slettbakk, I. Solberg, and O. Østerås. 1990. Microbiological findings in quarter milk samples from cows with acute clinical mastitis. Nor. Vet. Tidsskr. 102:645-654.