Published June 15, 2014 | Version v1
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PARENCHYMAL LEUKOCYTE INFILTRATION, SOMATIC CELL COUNT AND DUCTUS PAPILLARIS LENGTH IN DAIRY COWS UDDER

Creators

  • 1. University of Novi Sad, Faculty of Agriculture, Trg D. Obradovića 8, 21000 Novi Sad, Serbia

Description

Parenchyma leukocyte infiltration is characterized by physical, chemical and bacteriological changes in the glandular tissue of the
udder. Also that have affect on the quality and quantity of milk, too. Somatic cell count is a useful predictor of intramammary infection. Ductus papillaris is first defense line of udder. The aim of experiment was to determine relation between ductus papillaris length, somatic cell count and leukocyte infiltration in mammary gland parenchyma. During three years, 26 dairy cows were excluded from production and send to slaughterhouse. A week before sending cows to slaughterhouse, milk samples were took to determine somatic cell count. Udders from slaughtered cows were taken for measuring ductus papillaris length and for histopathology. From 104 mammary glands, 36 (52,94%) glands were with length of ductus papillaris less 5 mm, with parenchyma
leukocyte infiltration between 50-75% and with milk somatic cell count above 400.000/ ml. According to statistical correlation test, show positive correlation between ductus papillaris length, leukocyte infiltration in parenchyma and somatic cell count. Also, to statistical test ANOVA, all results are less 0.05 that means there is a statistically significant difference between leukocyte infiltration and milk somatic cell count.

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3. DAVIDOV et al. 2014 Vol. 63, No. 1-2 pp. 22-28.pdf

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References

  • BOBOŠ, S., AND VIDIĆ, B.: Mlečna žlezda preživara. Monografija, Univerzitet u Novom Sadu – Poljoprivredni fakultet, Naučni Institut za veterinarstvo "Novi Sad" – Novi Sad, Novi Sad, pp. 41-47, 2005.
  • CAPUCO, A.V., BRIGHT, S.A., PANKEY, J.W., WOOD, D.L., MILLER, R.H., AND BITMAN, J.: Increased susceptibility to intramammary infection following removal of teat canal keratin. J. Dairy Sci., 75:2126-2132, 1992.
  • DAVIDOV, I., BOBOŠ, S., RADINOVIĆ, M., AND ERDELJAN, M.: Effect of different length Ductus Papillaris on pathomorphological changes in udder parenchyma. Contemporary Agriculture, 60(1-2)139-144, 2011.
  • GEISHAUSER, T., AND QUERENGASSER, K.: Investigation on teat canal length in teats with milk flow disturbance. J. Dairy Sci., 83:1976-1980, 2000.
  • GULYÁS, L., AND IVÁNCSICS, J.: The relationship between the somatic cell count and certain udder-morphologic traits. Állattenyésztés és Takarmányozás, 49(4)331-339, 2000.
  • HAMANN, J.: Effects of machine milking on teat end condition- a literature review. IDF Bulletin, 215: 33-53, 1987.
  • KHAN, M. Z., AND KHAN, A.: Basic facts of mastitis in dairy animals. A review. Pakistan Vet. J., 26:204-208, 2006.
  • MAYER, G., AND KLEIN, M.: Histology and cytology of the mammary gland. Page 55 in Milk: The mammary gland and its secretion. Vol. 1 S.K. Kon and A.T. Cowie, ed. Academic Press, New York, NY, 1961.
  • McDONALD, J. S.: Radiographic method for anatomic study of the teat canal: characteristics related to resistance to new intramammary infection during lactation and the early dry period. Cornell Vet., 65: 492-497, 1979.
  • McDONALD, J.S.: Radiographic method for anatomic study of the teat canal: changes within the first lactation. American Journal of Veterinary Research, 34:169-171, 1973.
  • McDONALD, J.S.: Radiographic method for anatomic study of the teat canal: changes between milking periods. American Journal of Veterinary Research, 36:1241-1242, 1975.
  • PAURLUD, C.O., AND RASMUSSEN, M.D.: How teat canal depends on the length and diameter of the teat canal in dairy cows. Journal of Dairy Research, 71:253-255, 2004.
  • PAURLUD, C.O., THAMSBORG, S.M., ENEVOLDSEN, C., AND RASMUSSEN, M.D.: Effect of three different liners on heifer teat canal keratin. Journal of Dairy Research, 72: 255-257, 2004.
  • POBRIĆ, H.: Makro i mikromorfološka istraživanja vrha sise i stanje keratina u odnosu na hronično-kataralna oboljenja mlečne žlezde kod krava. Veterinaria Sarajevo, 39:32- 38, 1990.
  • POBRIĆ, H., BABIĆ, LJ., FILIPOVIĆ-PANIĆIĆ, M., PODŽO, M., AND FEJZIĆ, N.: Patološka građa sisinog kanala s obzirom na debljinu keratina i njegova uloga u nastanku oboljenja vimena krava. Veterinaria Sarajevo, 47:89-101, 1998.
  • SORDILLO, L.M., AND NICKERSON, S.C.: Morphometric changes in the bovine mammary gland during involution and lactogenesis. Amer. J. Vet. Res., 49:1112-1116, 1988.