{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T07:37:20Z","timestamp":1776152240898,"version":"3.50.1"},"reference-count":21,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2015,5,26]],"date-time":"2015-05-26T00:00:00Z","timestamp":1432598400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Aust Veterinary J"],"published-print":{"date-parts":[[2015,6]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To identify measures that most closely relate to hydration in healthy Brahman\u2010cross neonatal calves that experience milk deprivation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In a dry tropical environment, eight neonatal Brahman\u2010cross calves were prevented from suckling for 2\u20133 days during which measurements were performed twice daily.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean body water, as estimated by the mean urea space, was 74 \u00b1 3% of body weight at full hydration. The mean decrease in hydration was 7.3 \u00b1 1.1% per day. The rate of decrease was more than three\u2010fold higher during the day than at night. At an ambient temperature of 39\u00b0C, the decrease in hydration averaged 1.1% hourly. Measures that were most useful in predicting the degree of hydration in both simple and multiple\u2010regression prediction models were body weight, hindleg length, girth, ambient and oral temperatures, eyelid tenting, alertness score and plasma sodium. These parameters are different to those recommended for assessing calves with diarrhoea. Single\u2010measure predictions had a standard error of at least 5%, which reduced to 3\u20134% if multiple measures were used.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>We conclude that simple assessment of non\u2010suckling Brahman\u2010cross neonatal calves can estimate the severity of dehydration, but the estimates are imprecise. Dehydration in healthy neonatal calves that do not have access to milk can exceed 20% (&gt;15% weight loss) in 1\u20133 days under tropical conditions and at this point some are unable to recover without clinical intervention.<\/jats:p><\/jats:sec>","DOI":"10.1111\/avj.12324","type":"journal-article","created":{"date-parts":[[2015,5,26]],"date-time":"2015-05-26T13:14:43Z","timestamp":1432646083000},"page":"214-220","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Hydration in non\u2010suckling neonatal Brahman\u2010cross calves"],"prefix":"10.1111","volume":"93","author":[{"given":"G","family":"Fordyce","sequence":"first","affiliation":[{"name":"Queensland Alliance for Agriculture and Food Innovation, Centre for Animal Science The University of Queensland QLD Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"TWJ","family":"Olchowy","sequence":"additional","affiliation":[{"name":"School of Veterinary Science The University of Queensland QLD Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A","family":"Anderson","sequence":"additional","affiliation":[{"name":"Agri\u2010Science Queensland, Department of Agriculture and Fisheries Spyglass Beef Research Facility MS 99 Charters Towers QLD Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,5,26]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.anireprosci.2010.04.010"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1071\/EA08057"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1751-0813.1987.tb09661.x"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1753-4887.2005.tb00153.x"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1080\/07315724.2007.10719661"},{"key":"e_1_2_6_7_1","first-page":"627","volume-title":"Diseases of cattle","author":"Parkinson TJ","year":"2010"},{"key":"e_1_2_6_8_1","doi-asserted-by":"crossref","first-page":"990","DOI":"10.2460\/javma.1998.212.07.991","article-title":"Clinical and laboratory assessment of hydration status of neonatal calves with diarrhea","volume":"212","author":"Constable PD","year":"1998","journal-title":"J Am Vet Med Assoc"},{"key":"e_1_2_6_9_1","first-page":"168","article-title":"Severity and nature of acidosis in diarrheic calves over and under one week of age","volume":"28","author":"Naylor JM","year":"1987","journal-title":"Can Vet J"},{"key":"e_1_2_6_10_1","doi-asserted-by":"crossref","first-page":"113","DOI":"10.2460\/javma.1998.213.01.113","article-title":"Comparison of hypertonic saline\u2010dextran solution and lactated Ringer's solution for resuscitating severely dehydrated calves with diarrhea","volume":"213","author":"Walker PG","year":"1998","journal-title":"J Am Vet Med Assoc"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.3168\/jds.S0022-0302(90)79003-0"},{"key":"e_1_2_6_12_1","volume-title":"The guide to GenStat Release 14. 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