References

Andrews, F.M., A. Abbey and L.J. Halman, 1992. Is fertility-problem stress different? The dynamics of stress in fertile and infertile couples. Fertil. Steril., 57: 1247-1253.
PubMed  |  

Bakken, G., 1981. Relationships between udder and teat morphology, mastitis and milk production in norwegian red cattle. Acta. Agric. Scand., 31: 438-444.
CrossRef  |  

Capuco, A.V., G.A. Mein, S.C. Nickerson, L.J. Jack and D.L. Wood et al., 1994. Influence of pulsationless milking on teat canal keratin and mastitis. J. Dairy Sci., 77: 64-74.
CrossRef  |  PubMed  |  

Ebendorff, W. and J. Ziesack, 1991. Studies into reduction of milking vacuum (45 kPa) and its impact on teat stress, udder health as well as on parameters of milk yield and milking. Mh. Vet. Med., 46: 827-831.

Espe, D. and C.Y. Cannon, 1942. The anatomy and physiology of the teat sphincter. J. Dairy Sci., 25: 155-160.
CrossRef  |  

Gleeson, D.E., E.J. O'Callaghan and M.V. Rath, 2004. Effect of liner design, pulsator setting, and vacuum level on bovine teat tissue changes and milking characteristics as measured by ultrasonography. Irish Vet. J., 57: 289-296.
CrossRef  |  

Hamann, J., 1987. Machine milking and mastitis section 3: Effect of machine milking on teat end condition: A literature review. Bull. IDF., 215: 33-53.

Hamann, J., 2000. Teat tissue resistance mechanisms with special regard to machine milking. Proceedings of the International Dairy Federation International Symposium on Immunology of Ruminant Mammary Gland, June 13-14, 2000, Stresa, Italy -.

Johansson, J., 1957. Investigation on variation in udder and teat shape of cows. Z Tierz. Zuchtungsbiol., 70: 233-233.

Mein, G.A. and P.D. Thompson, 1993. Milking the 30,000-pound herd. J. Dairy Sci., 76: 3294-3300.
PubMed  |  

Mein, G.A., D.M. Williams and C.C. Thiel, 1987. Compressive load applied by the teatcup liner to the bovine teat. J. Dairy Res., 54: 327-337.
PubMed  |  

Mein, G.A., D.M.D. Williams and D.J. Reinemann, 2003. Effects of milking on teat-end hyperkeratosis: 1. Mechanical forces applied by the teatcup liner and responses of the teat. Proceedings of the 42nd Annual Meeting of the National Mastitis Council, January 26-29, 2003, Fort Worth Texas, USA -.

Mein, G.A., F. Neijenhuis, W.F. Morgan, D.J. Reinemann and J.E. Hillerton et al., 2001. Evaluation of bovine teat condition in commercial dairy herds: 1. Non-infectious factors. Proceedings of the 2nd International Symposium on Mastitis and Milk Quality, NMC/AABP, Vancouver, (MMQ'01), National Mastitis Council Inc., Madison, WI., pp: 347-351.

Michel, G., W. Seffner and J. Schulz, 1974. Hyperkeratosis of teat duct epithelium in cattle. Mh. Vet. Med., 29: 570-574.

Neijenhuis, F., H.W. Barkema, H. Hogeveen and J.P.T.M. Noordhuizen, 2000. Classification and longitudinal examination of callused teat ends in dairy cows. J. Dairy Sci., 83: 2795-2804.
Direct Link  |  

Neijenhuis, F., H.W. Barkema, H. Hogeveen and J.P.T.M. Noordhuizen, 2001. Relationship between teat-end callosity and occurrence of clinical mastitis. J. Dairy Sci., 84: 2664-2672.
Direct Link  |  

Rasmussen, M.D., 1993. Influence of switch level of automatic cluster removers on milking performance and udder health. J. Dairy Res., 60: 287-297.
PubMed  |  

Rathore, A.K., 1977. Teat shape and production associated with opening and prolapse of the teat orifice in Friesian cows. Br. Vet. J., 133: 258-262.
PubMed  |  

Shearn, M.F. and J.E. Hillerton, 1996. Hyperkeratosis of the teat duct orifice in the dairy cow. J. Dairy Res., 63: 525-532.
PubMed  |  

Sieber, R.L. and R.J. Farnsworth, 1981. Prevalence of chronic teat-end lesions and their relationship to intramammary infection in 22 herds of dairy cattle. J. Am. Vet. Med. Assoc., 178: 1263-1267.
PubMed  |