Influence of pulsation rate on udder health and teat thickness changes in dairy ewes

Journal of Dairy Science

Volumn 86, Issue 2, 2003, Pages 530-537

  Peris, C ^a   Diaz J R ^b   Segura, C ^a   Marti A ^a   Fernandez N ^a  

^a UNIVERSITAT POLITÈCNICA DE VALÈNCIA   (Spain)

^b MIGUEL HERNÁNDEZ UNIVERSITY   (Spain)

Author keywords

Intramammary infection; Pulsation rate; Somatic cell count; Teat thickness

Indexed keywords

ANIMALIA; BACTERIA (MICROORGANISMS); OVIS; STAPHYLOCOCCUS; STAPHYLOCOCCUS SIMULANS;

IODINE;

ANIMAL; ANIMAL DISEASE; ARTICLE; BACTERIAL INFECTION; CELL COUNT; CYTOLOGY; DAIRYING; FEMALE; HISTOLOGY; INSTRUMENTATION; LACTATION; MASTITIS; METHODOLOGY; MICROBIOLOGY; MICROCOCCUS; MILK; PHYSIOLOGY; SHEEP; SHEEP DISEASE; STAPHYLOCOCCUS INFECTION; UDDER;

ANIMALS; CELL COUNT; DAIRYING; FEMALE; GRAM-POSITIVE BACTERIAL INFECTIONS; IODINE; LACTATION; MAMMARY GLANDS, ANIMAL; MASTITIS; MICROCOCCUS; MILK; SHEEP; SHEEP DISEASES; STAPHYLOCOCCAL INFECTIONS;

EID: 4043072152     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(03)73631-5     Document Type: Article

References (39)

1. Ali, A. K., and G. E. Shook. 1980. An optimum transformation for somatic cell concentration in milk. J. Dairy Sci. 63:487-490.
2. Bergonier, D., G. Lagriffoul. X. Berthelot, and F. Barillet. 1994. Non infectous factors affecting Somatic Cell Counts in dairy ewes and goats. Proceedings of International Symposium of Somatic Cells and Milk of Small Ruminants. EAAP Publication no. 77, 1996, 113-136.
3. Billon, P., O. Ronningen, E. Sangiorgi, and E. Schuiling. 1999. Quantitative requirements of milking installations for small ruminants. A survey in different countries. Milking and milk production of dairy sheep and goats. Proceedings of the Sixth International Symposium on the milking of small ruminants. EAAP Publication no. 95, 1999, 209-215.
4. Billon, P., N. Fernández, O. Ronningen, F. Sangiorgi, and E. Schuiling. 2002. Quantitative recommendations for milking machines installations for small ruminants. Bull. IDF 370:4-21.
5. Bramley, A. J. 1992. Mastitis and machine milking. Pages 343-372 in Machine Milking and Lactation. A. J. Bramley, F. H. Dodd, G. A. Mein and J. A. Bramley, eds. Insight Books, Berkshire, England.
6. Burriel, A. R. 1998. Isolation of coagulase-negative staphilococci from the milk and environment of sheep. J. Dairy Res. 65:139-142.
7. Díaz, J. R. 2000. Study of different machine milking conditions in manchega sheep breed. Ph.D. Thesis, Polytechnical Univ. of Valence, Spain.
8. Fernández. N., J. R. Díaz, C. Peris, M. Rodríguez, M. P. Molina, A. Torres. 1999. Machine milking parameters for the Manchega sheep breed. Sixth International symposium on the milking of small ruminants. Athens, Greece. EAAP Publication no. 95, 1999, 227-232.
9. Hamann, J. 1989. Machine milking and new infection risk. Pages 113-122 in Proceedings of the International Conference on Mastitis, St. Georgen, Austria.
10. Hamann, J., and G. A. Mein. 1988. Responses of the bovine teat to machine milking: measurement of changes in thickness of the teat apex. J. Dairy Res. 55:331-338.
11. Hamann, J., and G. A. Mein. 1990. Measurement of machine-induced changes in thickness of the bovine teat. J. Dairy Res. 57:495-505.
12. Hamann, J., O. Osteras, M. Mayntz, and W. Woyke. 1994. Functional parameters of milking units with regard to teat tissue treatment. Int. Dairy Fed. Bull. 297:23-32.
13. Hamann, J., and G. A. Mein. 1996. Teat thickness changes may provide biological test for effective pulsation. J. Dairy Res. 63:179-189.
14. Hamann, J., G. A. Mein, and N. Burkhard. 1996. Recommended method for measuring changes in thickness of the bovine teat with spring-loaded calipers. J. Dairy Res. 66:309-313.
15. Harmon, R. J. 1994. Physiology of mastitis and factors affecting Somatic Cell Counts. J. Dairy Sci. 77:2103-2112.
16. Harmon, R. J., R. J. Eberhart, D. E. Jasper, and B. E. Langlois. 1990. Microbiological Procedures for the Diagnosis of Bovine Udder Infection. Natl. Mastitis Counc., Inc., Arlington.
17. Hogan, J. S., D. M. Galton, R. J. Harmon, S. C. Nickerson, S. P. Oliver, J. W. Pankey. 1990. Protocols for evaluating efficacy of postmilking teat dips. J. Dairy Sci. 73:2580-2585.
18. International Organization for Standardization. 1996. Milking machine installation. Construction and performance. ISO Standard no. 5707.
19. Labussière, J., J. Le Du, J. L. Le Painteur, F. A. de laChevalerie, and J. F. Combaud. 1978. Comparison of two different milking machines in ewes of the manech breed. II. International Symposium on the Milking of Small Ruminants. Alghero (Italia). Ed. INRA-ITOVIC:346-359.
20. Le Du, J. 1977. Milking machine for dairy ewes: Relationships between pulsation characteristics and movements of the teat-cup liner. Ann. Zootech. 26:1-14.
21. Le Du, J. 1985. Paramètres de fonctionnement affectant l'efficacité des machines à traire pour brebis et chèvres. 36ème Réunion Annuelle F.E.Z., Ed. Giahoudi Bros Publications Thessalonique, Grèce 1:430-431.
22. Marnet, P. G., J. F. Combaud, J. Le Du, and Y. Dano. 1996. Effect of pulsation rate and vacuum level on oxytocin release, milk parameters and teat end reaction. Page 114 in Proceedings Symposium on Milk Synthesis, Secretion and Removal in Ruminants, Berne, Switzerland.
23. Mckusick, B. C., P. G. Marnet, J. F. Combaud, Y. Dano, and J. M. Aubry. 2000. A half-udder comparison of suckling or machine milking on local modification of the teat and udder during early lactation of dairy ewes. Pages 124-130 in Proc. Intl. Dairy Fed. Symp. Immunol. Rum. Hamm. Gland. A. Zecconi, ed. Stresa, Italy.
24. Mein, G. A. 1992. Action of cluster during milking. Pages 97-140 in Machine Milking and Lactation. A. J. Bramley, F. H. Dodd, G. A. Mein, and J. A. Bramley, eds. Insight Books, Berkshire, England.
25. Molina, A., C. Fernández, H. Vergara, and L. Gallego. 1999. Effect of conditions and milking parameters on production, fractioning and composition of milk, and health status of udders in manchega ewes. Arch. Zootech. 48:135-146.
26. Olney, G. R., and R. K. Mitchell. 1983. Effect of milking machine factors on the somatic cell count of milk from cows free of intramammary infection. II. Vacuum level and overmilking. J. Dairy Res. 50:141-148.
27. Olney, G. R., and G. W. Scott. 1983. Effect of milking machine factors on the somatic cell count of milk from cows free of intramammary infection. III Pulsator rate. J. Dairy Res. 50:149-152.
28. O'Shea, J., E. O'Callaghan, W. J. Meaney. 1984. Effect of machine milking on new mastitis infections. Ir. J. Agric. Res. 23:155-171.
29. Osteras, O., O. Ronningen, L. Sandvik, and S. Waage. 1995. Field studies show associations between pulsator characteristics and udder health. J. Dairy Res. 62:1-13.
30. Pazzona, A., L. Murgia, and M. Sabelli. 1993. Effect of milking vacuum and pulsation frequencies on leukocyte count in ewe milk. Informatore Agrario (Italy) 42:43-46.
31. Peris, C. 1994. Effect of pulsation rate and traction on the teatcups in machine milking of ewes. Ph. D. Thesis, Polytechnical Univ. of Valence, Spain.
32. Rasmussen, M. D., E. S. Frimer, and E. L. Decker. 1994. Reverse pressure gradients across the teat canal related to machine milking. J. Dairy Sci. 77:984-993.
33. Reitsma, S. Y., E. J. Cant, R. J. Grindal, D. R. Westgarth, and A. J. Bramley. 1981. Effect of duration of teatcup liner closure per pulsation cycle on bovine mastitis. J. Dairy Sci. 64:220.
34. Ronningen, O., and A. D. Reitan. 1990. Influence of static and dynamic teat characteristics and milking time on udder health in Norwegian Red Cattle. J. Dairy Res. 57:171-177.
35. SAS/STAT Software. Changes and Enhacements through Release 6.11. 1996. SAS Institute Inc., Cary, NC.
36. Schepers, A. J., T. J. G. M. Lam, Y. H. Schukken, J. B. M. Wolmink, and W. J. A. Hanekamp. 1997. Estimation of variance components for Somatic Cell Counts to determine thresholds for uninfected quarters. J. Dairy Sci. 80:1833-1840.
37. Spencer, S. B. 1989. Recent research and developments in machine milking - A review. J. Dairy Sci. 72:1907-1917.
38. Thiel, C. C., and G. A. Mein. 1979. Action of the cluster during milking. Pages 148-150 in Machine Milking. Natl. Inst. Res. Dairying, Reading, England.
39. Walsh, J. P., and J. F. Nyhan. 1969. Effect of milking machine pulsation rate and vacuum level on milk yield and composition. Page 54 in Animal Prod. Res. Rep. Moorepark. County Cork, Ireland.