Evaluation of tear secretion by phenol red thread test in Holstein cows


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SAGLAM K. A. M. I. L., DUZ E. R. K. A. N.

MEDYCYNA WETERYNARYJNA-VETERINARY MEDICINE-SCIENCE AND PRACTICE, vol.78, no.7, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 78 Issue: 7
  • Publication Date: 2022
  • Doi Number: 10.21521/mw.6657
  • Journal Name: MEDYCYNA WETERYNARYJNA-VETERINARY MEDICINE-SCIENCE AND PRACTICE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, CAB Abstracts, Veterinary Science Database
  • Keywords: cow, tear secretion, KERATOCONJUNCTIVITIS SICCA, CORNEAL SENSITIVITY, SCHIRMER, DOGS, HORSES, SEASON, SHEEP, SEX
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

This study aimed to measure the normal physiological tear production of Holstein cows with the phenol red thread (PRT) test to determine the reference value specific to this test and to examine the effect of the number of births, age and seasonal air temperature on the amount of tear production. The study was performed on 50 Holstein cows aged 3-7 years in two groups. The PRT test was performed in group 1 in January and in group 2 at the end of May. The age and birth numbers of all animals were recorded.