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Cited by 379Animal health and immunologyClinical Laboratory Practices and Quality ControlVeterinary Medicine and Surgery

Hematology and serum biochemistry of Holstein dairy calves: Age related changes and comparison with blood composition in adults

Mohri, M., Sharifi, K., Eidi, S.·2007·Research in Veterinary Science
DOI 10.1016/j.rvsc.2006.10.017
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Abstract

Specific reference intervals are needed for each animal species for appropriate interpretation of hematological and serum biochemical results. The aim of the present study was to investigate the blood composition of growing calves in order to evaluate the need for defining reference values for different age groups. Thirty two Holstein calves (18 male and 14 female) were blood sampled. A blood sample was taken within 24-48 h following birth and at 14, 28, 42, 56, 70 and 84 days of age. CBC determination and the measurements of some blood serum metabolites, enzymes, electrolytes and minerals were performed. There were significant age related changes for most hematological and biochemical parameters (p < 0.05) except for the numbers of band neutrophils and monocytes and the amounts of sodium, potassium, chloride and BUN. The results of the present study showed that for some hematological and biochemical parameters such as hemoglobin, MCV, MCH, MCHC, inorganic phosphorus, serum total protein, globulin, AST and ALP at the first three months of life and also, neutrophil numbers and glucose levels at the 24-48 h of life, the age specific reference values must be considered for precise interpretation of laboratory results.

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Crossref · 10.1016/j.rvsc.2006.10.017

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  • Minimum sample size was set at 20 calves per group based on an initial sample size calculation using means for glucose of 3.4 and 4.4 mmol/L and expected SD 1.0, power 0.8, yielding effective sample size 34 (n=16 per group), allowing for dropouts.

    “Minimum sample size was set at 20 calves per group based on an initial sample size calculation using means for glucose of 3.4 (raw data from an earlier trial following calves on a commercial transport from Ireland to France) and 4.4 mmol/L (mean value for non-fasted calves [18]) and an expected standard deviation of 1.0 mmol/L. Using a power of 0.8 this calculation yielded an effective sample size”

    From Observational study: effect of varying transport durations and feed withdrawal on the physiological status and health of dairy calves (2025) · cites this paper as [18]

  • There was an increase in signs of dehydration over the course of transport regardless of pre-transport feeding protocol.

    “When compared with reference ranges of un-transported calves (Knowles et al., 2000; Mohri et al., 2007; Dillane et al., 2018), there was an increase in signs of dehydration over the course of transport regardless of pre-transport feeding protocol.”

    From Effects of pre- and post-transport feeding protocols on the metabolism and physiological status of veal calves. (2025) · cites this paper as Mohri et al., 2007

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Authors
Mohri, M., Sharifi, K., & Eidi, S.
Affiliations
Ferdowsi University of Mashhad (IR)
Corresponding author
Mohri, M.
ORCID
Venue
Research in Veterinary Science
Publisher
Elsevier BV
Published
2007-08
Volume
83
Issue
1
Pages
30-39
ISSN
0034-5288 (ISSN-L)
DOI
10.1016/j.rvsc.2006.10.017
OpenAlex
W2068775782
Cited by
379
References
18
Citations by year
2026: 13 · 2025: 19 · 2024: 13 · 2023: 33 · 2022: 35 · 2021: 32 · 2020: 28 · 2019: 26 · 2018: 24 · 2017: 12 · 2016: 23 · 2015: 18 · 2014: 22 · 2013: 17 · 2012: 17
FWCI
7.57
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Research in Veterinary Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Veterinary › Small Animals › Animal health and immunology
  • Health Sciences › Medicine › Physiology › Clinical Laboratory Practices and Quality Control
  • Health Sciences › Veterinary › Small Animals › Veterinary Medicine and Surgery
Keywords
Holstein calves, hematological reference values, serum biochemistry, age-related changes, complete blood count, serum electrolytes, serum enzymes, inorganic phosphorus, hemoglobin, neutrophils, blood glucose, neonatal calves, dairy cattle
MeSH terms
Aging, Alkaline Phosphatase, Animals, Aspartate Aminotransferases, Bilirubin, Blood Glucose, Cattle, Creatinine, Dairying, Erythrocyte Count, Female, Hematocrit, Hemoglobins, Iron, Leukocyte Count, Male, Platelet Count, Reference Values, Sex Characteristics, Urea

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