Hematology Reference Intervals for Holstein Cows in Southern China: A Study of 786 Subjects

Hematology RIs help clinicians and researchers determine whether a hematology parameter is abnormal, which plays an important role in animal health surveillance. China is one of the largest dairy producers in the world, with millions of Holstein cows. However, there has been no published data on hem...

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Bibliographic Details
Published in:Veterinary sciences 2022-10, Vol.9 (10), p.565
Main Authors: Chen, Hongbo, Yu, Bo, Liu, Chenhui, Cheng, Lei, Yu, Jie, Hu, Xiuzhong, Xiang, Min
Format: Article
Language:English
Subjects:
Age
ages
Animal lactation
Animals
Blood
Dairy cattle
Foot & mouth disease
Hematology
Hemoglobin
Holstein cows
Laboratories
Lactation
Milk
parities
Parity
Pathology
reference interval
surveillance
Vaccines
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Summary:Hematology RIs help clinicians and researchers determine whether a hematology parameter is abnormal, which plays an important role in animal health surveillance. China is one of the largest dairy producers in the world, with millions of Holstein cows. However, there has been no published data on hematology RIs for dairy cows in China yet. Therefore, the aim of this study is to establish updated and accurate RIs for Holstein cows in southern China. To increase the accuracy of the RIs, we collected blood samples from 786 Holstein cows and analyzed 25 hematologic variables. The RIs for Holstein cows were established using the 95% percentile RIs according to the American Society of Veterinary Clinical Pathology guidelines. The effects of different ages, parities and lactation stages were also checked in this study. The data of 21, 22 and 19 out of 25 hematology parameters were significantly different between different ages, parities and lactation stages, respectively. Furthermore, the hematology RIs of separate subclasses according to different ages, parities and lactation stages were generated. Hematology RIs according to ages and lactation stages, as well as parities and lactation stages, were also assessed. Together, our results confirm that hematology RIs for cows vary by ages, parities and lactation stages. The present study helps to fill the gap in hematology RIs for Holstein cows in southern China, and our data may serve as a very useful tool for monitoring the health and welfare of dairy cattle in China.
ISSN:2306-7381
2306-7381
DOI:10.3390/vetsci9100565