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Observational study on variation of longitudinal platelet counts in calves over the first 14 days of life and reference intervals from cross-sectional platelet and leukocyte counts in dairy calves up to two months of age
- Source :
- Animals, 11(2), 1. Multidisciplinary Digital Publishing Institute (MDPI), Animals, Vol 11, Iss 347, p 347 (2021), Animals, Volume 11, Issue 2, Animals : an Open Access Journal from MDPI
- Publication Year :
- 2021
-
Abstract
- Platelet and leukocyte count reference intervals (RIs) for cattle differ by age and while adult RIs are known, RIs for calves are studied less. The aims of this observational study are to evaluate variation of platelet counts of Holstein Friesian calves over the first 14 days of life and to propose RIs for platelet and leukocyte counts of Holstein Friesian calves aged 0&ndash<br />60 days. In a longitudinal study, 19 calves were blood sampled 17 times, in the first 14 days of their lives. Blood was collected in a citrate blood tube and platelet counts were determined. We assessed the course of platelet counts. In a field study, 457 healthy calves were blood sampled once. Blood was collected in an EDTA blood tube and platelet and leukocyte counts were determined. The RIs were calculated by the 2.5 and 97.5 percentiles. Platelet counts started to increase 24 h after birth (mean platelet count 381 &times<br />109/L &plusmn<br />138 &times<br />109/L) and stabilized after five days (mean platelet count 642 &times<br />265 &times<br />109/L). In calves up to six days of age, platelet counts were lower than in calves older than five days. In conclusion, the RIs of platelet and leukocyte counts in calves were wider in range than the RIs for adult cattle, therefore, calf specific RIs for platelet and leukocyte counts should be used. From 6 until 60 days of age, we propose an RI for platelet counts of 287&ndash<br />1372 &times<br />109/L and for the first 60 days of life an RI for leukocyte counts of 4.0&ndash<br />18.9 &times<br />109/L.
- Subjects :
- Platelets
lcsh:Veterinary medicine
General Veterinary
Postnatal increase
business.industry
animal diseases
food and beverages
Leukocyte Counts
veterinary(all)
Article
Blood tube
Reference intervals
Reference interval
fluids and secretions
Animal science
lcsh:Zoology
Leukocytes
lcsh:SF600-1100
Medicine
Platelet
Animal Science and Zoology
lcsh:QL1-991
business
Dairy calves
Subjects
Details
- Language :
- English
- ISSN :
- 20762615
- Database :
- OpenAIRE
- Journal :
- Animals, 11(2), 1. Multidisciplinary Digital Publishing Institute (MDPI), Animals, Vol 11, Iss 347, p 347 (2021), Animals, Volume 11, Issue 2, Animals : an Open Access Journal from MDPI
- Accession number :
- edsair.doi.dedup.....91e90f3c3ca8ccc56f9d4f935285d2ef