Zewnetrzne i wewnetrzne uszkodzenia strzykow krow

• Autorzy: Olechnowicz J

Warianty tytułu

EN

External and internal damage of cow teats

• Języki publikacji: PL

Abstrakty

EN

Maintenance of healthy teat skin and teat-ends is a key part of any effective mastitis program. Instruments and measurement techniques used to assess the condition of teat tissue include changes in teat thickness with a modified cutimeter, ultrasonography, sub-cutaneous oxygen tension and pulse oximetry. Simpler methods for quantifying the condition of the teat after milking are optical estimates that rely on changes in the short- or medium- or long-term. Faults in milking machines are the primary cause of short-term changes in color, firmness, thickness or swelling of teats, or the degree of openness of the teat orifice. Medium-term changes in the incidence of petechial haemorrhages or larger haemorrhaging may occur instantly or may take several days before becoming evident. Changes in the teat skin condition are associated with harsh weather or chemical irritation. Long-term changes in teat-end condition after milking are, among other things, hyperkeratosis, where there is stratified dryness and hardness of keratin around the orifice of the teat canal. The application of a scoring system and the further development of digital cameras and related software for scoring is a more objective and convenient way. The TECT (teat end callosity thickness) and TECR (teat end callosity roughness) are complementary parameters, and should both be used. Development of TEC (teat end callosity) is associated with cow factors such as TES (teat end shape), PAR (parity), DIM (lactation stage), and MT (machine-on time). With the aid of research ultrasound repercussions it is possible to observe inflammatory states and mechanical damages of teats in the form of stenosis or atresia external orifice teat canal. The endoscopic technique is suitable for multiple sampling and repeated visualization of the teat and udder cistern of healthy, lactating cows without major complications. The collected biopsy samples could be used in primary epithelial cell culture, histological examination, and PCR analysis. In robot-milked cows significantly lower frequencies of the occurrence of the trait of redness of the teat skin but a significantly higher frequency of the trait dry teat skin were observed than in traditionally milked cows. Cows milked traditionally also showed a higher frequency of extended teat canals in the front teats than rear teats. Milk leakage from teats occurs more often in robotic milking than in cows conventionally milked and housed in a free-stall barn or a tie-stall barn.

Słowa kluczowe

PL

strzyki; uszkodzenia wewnetrzne; bydlo; uszkodzenia strzykow; przyczyny; systemy klasyfikacji; diagnostyka; endoskopia; uszkodzenia zewnetrzne; krowy mleczne; ultrasonografia; uszkodzenia skory wymienia; choroby strzykow; klasyfikacja uszkodzen

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2007
• Tom: 63
• Numer: 07
• Opis fizyczny: s.786-791,rys.,fot.,bibliogr.

Twórcy

autor

Olechnowicz J

• Akademia Rolnicza w Poznaniu, ul.Wojska Polskiego 52, 60-625 Poznan

Bibliografia

• 1.Britt J. S., Farnsworth R.: A system for evaluating teat anatomy, skin condition, and teat ends. Proc. 35th Annual Meeting, National Mastitis Council, Nashville 1996, s. 228-231.
• 2.Burmeister J. E., Fox L. K., Hillers J. K., Hancock D. D.: A comparison of two methods of evaluation of teat skin pathology. J. Dairy Sci. 1998, 81, 1904-1909.
• 3.Burmeister J. E., Fox L. K., Hillers J. K., Hancock D. D.: Effects of premilking and postmilking teat disinfectants on teat skin condition. J. Dairy Sci. 1998, 81, 1910-1916.
• 4.Capuco A. V., Mein G. A., Nickerson S. C., Jack L. J. W., Wood D. L., Bright S. A., Aschenbrenner R. A., Miller R. H., Bitman J.: Influence of pulsation milking on teat canal keratin and mastitis. J. Dairy Sci. 1994, 77, 64-74.
• 5.Casirani G., Binda E., Piccinini R., Zecconi A.: Sviluppo ed applicazione di un sistema basato sulla valutazione dello stato del capezzolo. Obiett. Doc. Vet. 2002, 10, 21-27.
• 6.Chrystal M. A., Seykora A. J., Hansen L. B.: Heritabilities of teat end shape and teat diameter and their relationships with somatic cell score. J. Dairy Sci. 1999, 82, 2017-2022.
• 7.De Vliegher S., Laevens H., Barkema H. W., Opsomer G., Hemling T., de Kruift A.: Short-term effect of transition from conventional to automated milking on teat skin and teat end condition. J. Dairy Sci. 2003, 86, 1646-1652.
• 8.Dingwell R. T., Leslie K. E., Schukken Y. H., Sargeant J. M., Timms L. L., Duffield T. F., Keefe G. P., Kelton D. F., Lissemore K. D., Conklin J.: Association of cow and quarter-level factors at drying-off with new intramammary infections during the dry period. Prev. Vet. Med. 2004, 63, 75-89.
• 9.Fox L. K., Oura L. Y., Ames C. R.: Teat skin pH. J. Dairy Sci. 2003, 86, 3951- -3952.
• 10.Galton D. M.: Effect of an automatic postmilking teat dipping system on new intramammary infections and iodine in milk. J. Dairy Sci. 2004, 87, 225-231.
• 11.Geishauser T., Querengässer K., Nitschke M., Sorbiraj A.: Milk yield, somatic cell counts, and risk of removal from the herd for dairy cows after covered teat canal injury. J. Dairy Sci. 1999, 82, 1482-1488.
• 12.Geishauser T., Querengässer K.: Investigations on teat canal length in teats with milk flow disturbances. J. Dairy Sci. 2000, 83, 1976-1980.
• 13.Goldberg J. J., Murdough P. A., Howard A. B., Drechsler P. A., Pankey J. W., Ledbetter G. A., Day L. L., Day J. D.: Winter evaluation of a postmilking powdered teat dip. J. Dairy Sci. 1994, 77, 748-758.
• 14.Hamann J., Mein G. A., Nipp B.: Recommended method for measuring changes in thickness of the bovine teat with spring-loaded calipers. J. Dairy Res. 1996, 63, 309-313.
• 15.Hillerton J. E., Morgan W. F., Farnsworth R., Neijenhuis F., Baines J. R., Mein G. A., Ohnstad I., Reinemann D. J., Timms L.: Evaluation of bovine teat conditions in commercial dairy herds: 2. Infectious factors and infections. Proc. 2nd Int. Symp. on Mastitis and Milk Quality, Vancouver 13-15.09.2001, 2001, s. 352-356.
• 16.Hillerton J. E., Ohnstad I., Baines J. R., Leach K. A.: Changes in cow teat tissue created by two types of milking cluster. J. Dairy Res. 2000, 67, 309-317.
• 17.Klaas I. C., Enevoldsen C., Ersbøll A. K., Tölle U.: Cow-related risk factors for milk leakage. J. Dairy Sci. 2005, 88, 128-136.
• 18.Kostro K., Gliñski Z., Wojcicka-Lorenowicz K., Nozdryn-Płotnicki Z.: Odporność przeciwzakaźna skóry. Medycyna Wet. 2002, 58, 655-660.
• 19.Malinowski E.: Znaczenie dezynfekcji wymienia i rodzaje środków. Medycyna Wet. 2000, 56, 709-714.
• 20.Maltz E., Reinemann D. J., Davis M. A.: Blood flow and oxygen concentration of teat-end tissue before and after machine milking. ASAE Annual International Meeting Milwaukee, Wisconsin, USA 9-12 July 2000, 2000, 1-12.
• 21.Mein G. A., Neijenhuis F., Morgan W. F., Reinemann D. J., Hillerton J. E., Baines J. R., Ohnstad I., Rasmussen M. D., Timms L. L., Britt J. S., Farnsworth R., Cook N., Hemling T.: Evaluation of bovine teat condition in commercial dairy herds: 1. Non-infectious factors. Proc. 2nd Int. Symp. on Mastitis and Milk Quality, Vancouver 13-15.09.2001, 2001, s. 1-11.
• 22.Neijenhuis F., Barkema H. W., Hogeveen H., Noordhuizen J. P. T. M.: Classification and longitudinal examination of callused teat ends in dairy cows. J. Dairy Sci. 2000, 83, 2795-2804.
• 23.Neijenhuis F., Barkema H. W., Hogeveen H., Noordhuizen J. P. T. M.: Relationship between teat-end callosity and occurrence of clinical mastitis. J. Dairy Sci. 2001, 84, 2664-2672.
• 24.Neijenhuis F., Klungel G. H., Hogeveen H.: Recovery of cows teats after milking as determined by ultrasonographic scanning. J. Dairy Sci. 2001, 84, 2599-2606.
• 25.Persson Waller K., Westermark T., Ekman T., Svennersten-Sjaunja K.: Milk leakage an increased risk in automatic milking systems. J. Dairy Sci. 2003, 86, 3488-3497.
• 26.Querengässer J., Geishauser T., Querengässer K.: Investigations on milk flow and milk yield from teats with milk flow disorders. J. Dairy Sci. 2002, 85, 810- -817.
• 27.Rasmussen M. D.: Overmilking and teat condition. Proc. 43rd Annual Meeting, National Mastitis Council, Charlotte 2004, North Carolina, s. 169-175.
• 28.Rasmussen M. D., Frimer E. S., Kaartinen L., Jensen N. E.: Milking performance and udder health of cows milked with two different liners. J. Dairy Res. 1998, 65, 353-363.
• 29.Rasmussen M. D., Frimer E. S., Decker E. L.: Reverse pressure gradients across the teat canal related to machine milking. J. Dairy Sci. 1994, 77, 984-993.
• 30.Shearn M. F., Hillerton J. E.: Hyperkeratosis of the teat duct orifice in the dairy cow. J. Dairy Res. 1996, 63, 525-532.
• 31.Twardoñ J., Dzięcioł M., Niżañski W., Denejka G. J.: Zastosowanie endoskopii w diagnostyce i terapii schorzeñ strzyków. Medycyna Wet. 2002, 58, 430-432.
• 32.Vangroenweghe F., Van Den Broeck W., De Ketelaere A., van Bree H., Duchateau L., Burvenich C.: Endoscopic examination and tissue sampling of the bovine teat and udder cistern. J. Dairy Sci. 2006, 89, 1516-1524.
• 33.Weiss D., Weinfurtner M., Bruckmaier R. M.: Teat anatomy and its relationship with quarter and udder milk flow characteristics in dairy cows. J. Dairy Sci. 2004, 87, 3280-3289.
• 34.Zecconi A., Binda E., Kapra V., Hemling T., Piccinini R.: Field study on protocols for evaluation of teat skin conditions. J. Vet. Med. B 2005, 52, 219- -225.