{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T12:51:58Z","timestamp":1761569518414,"version":"build-2065373602"},"reference-count":15,"publisher":"Wiley","issue":"23","license":[{"start":{"date-parts":[[2014,12,13]],"date-time":"2014-12-13T00:00:00Z","timestamp":1418428800000},"content-version":"vor","delay-in-days":12,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Veterinary Record"],"published-print":{"date-parts":[[2014,12]]},"abstract":"<jats:p>The objectives of this study were to determine the applicability of the phenol red thread (PRT) test as a new method for the evaluation of tear secretion in healthy male and female pigeons, to establish normal physiologic reference values in these animals, and to compare seasonal variations in these values. Seventy\u2010five pigeons of both sexes, with no ocular abnormalities, were included in the study. The phenol red impregnated thread was inserted into the recessus conjunctiva inferior for measuring tear secretion. After 15\u00a0seconds, the thread was removed and the wet portion of the thread was measured (in mm). The mean\u00b1sd PRT values were 23.02\u00b12.98\u00a0mm\/15\u00a0seconds and 24.04\u00b12.60\u00a0mm\/15\u00a0seconds for the April and June measurements, respectively. There were significant differences in the PRT between the two months, with a significant increase in June. Mean PRT values for males and females were, respectively, 23.30\u00b13.35 and 22.79\u00b12.65\u00a0mm\/15\u00a0seconds in April, and 24.57\u00b12.41 and 23.61\u00b12.68\u00a0mm\/15\u00a0seconds in June. There was no significant correlation (r=0.075, P&gt;0.05) between bodyweight and tear production in both eyes of the male and female birds in April and June. The results indicated that seasonal variations have an effect on tear production. The PRT was a viable method for the measurement of tear production in pigeons and these measurements could be accepted as reference values for healthy pigeons.<\/jats:p>","DOI":"10.1136\/vr.101379","type":"journal-article","created":{"date-parts":[[2014,10,4]],"date-time":"2014-10-04T20:11:27Z","timestamp":1412453487000},"page":"594-594","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Measurement of tear secretion in healthy pigeons by using the phenol red thread test"],"prefix":"10.1002","volume":"175","author":[{"given":"A.","family":"Hayat","sequence":"first","affiliation":[{"name":"Faculty of Veterinary Medicine Department of Surgery Harran University \u015eanl\u0131urfa Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H. S.","family":"Biricik","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine Department of Surgery Afyon Kocatepe University Afyonkarahisar Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2014,12,13]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"251","article-title":"Schirmer tear test results in normal horses and ponies: effect of age, season environment, sex, time of day and placement of strips, Vet","volume":"6","author":"Beech J.","year":"2003","journal-title":"Ophthalmology"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/vr.156.15.485"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1463-5224.2007.00548.x"},{"key":"e_1_2_7_5_1","first-page":"323","article-title":"Comparison of camel tear proteins between summer and winter","volume":"17","author":"Chen Z.","year":"2011","journal-title":"Molecular Vision"},{"key":"e_1_2_7_6_1","first-page":"734","article-title":"Ophthalmological findings in free\u2010living tawny owls (Strix aluco) examined at a wildlife veterinary hospital","volume":"156","author":"Cousquer G.","year":"2005","journal-title":"Veterinary Research"},{"key":"e_1_2_7_7_1","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1638\/2010-0103.1","article-title":"Determination of reference values for intraocular pressure and Schirmer tear test in clinically normal ostriches (Struthio camelus)","volume":"43","author":"Ghaffri M. 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