Determination of Subclinical Mastitis in Dairy Cows by Different Methods


GÜRBULAK K., CANOOĞLU E., ABAY M., ATABAY O., BEKYÜREK T.

KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI, vol.15, no.5, pp.765-770, 2009 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 5
  • Publication Date: 2009
  • Journal Name: KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.765-770
  • Keywords: Cows, Subclinical mastitis, Somatic cell count, Supramammary lymph nodes, SOMATIC-CELL COUNT, NORMAL LYMPH-NODES, ULTRASONOGRAPHIC APPEARANCE, SONOGRAPHIC APPEARANCE, CLINICAL MASTITIS, CATTLE, CONDUCTIVITY, TEAT, MILK
  • Erciyes University Affiliated: Yes

Abstract

This study was carried out to determine relationship between california mastitis test (CMT), somatic cell count (SCC), electrical conductivity (EC) of milk, bacteriological examinations and size of the superficial supramammary lymph nodes in subclinical mastitis of lactating cows. Milk samples collected from 1184 quarters of 296 Holstein cows between 3-9 aged in Saray farms in Kayseri were used as study materials. The ultrasonographical examination of the superficial supramammary lymph nodes of cows was caried out by using a 7.5 MHz linear transducer (Honda Vet-1500 Ultrasound). The horizontal lenght of lymph node was measured at hyperechoic line by transducer. A positive correlation (P<0.01) was found between the size of the superficial supramammary lymph nodes and SCC. The most frequently isolated microorganism was Staphylococcus aureus in bacteriological examinations. In conclusion, although SCC, CMT and EC results are consistent with the ultrasonographic appearance of the superficial supramammary lymph nodes, it is not possible to use the lymph nodes as a solely diagnostic method because of the largened lymph nodes beforehand occured mastitis.