Variation in leukocyte counts of Sahiwal and Karan Fries cattle during acute thermal exposures

DOI

10.2991/msc-18.2018.37How to use a DOI?

Keywords

Crossbred cattle, leukocyte, Sahiwal, Karan Fries, thermal stress

Abstract

The leukocyte counts of Sahiwal and Karan Fries (KF) crossbred cattle in response to acute thermal stress were investigated. Six numbers each of Sahiwal and KF were exposed to acute thermal stress at 40°C and 50% RH for 4 h in a psychromatic chamber located at Karnal, India during the period when Tmax/Tmin was 30.80°C/13.60°C. Both the breeds responded differently at different intervals of exposure. In Sahiwal, lymphocyte count decreased from 67.48±2.44 at 0 h to 59.39±1.06% after 2 h, but increased neutrophil from 23.90±1.22 at 0 h to 30.24±1.02% after 2 h. In KF, lymphocyte decreased from 65.95±3.06 at 0h to 63.07±0.66% after 3 h, while neutrophil count remained stable. Neutrophil-lymphocyte ratio increased in Sahiwal from 0.36±0.02 at 0 h to 0.51±0.02 after 3 h while in KF it was stable. Monocyte count dropped from 5.75±0.84 at 0 h to 5.34±0.50% after 4 h in Sahiwal, and from 5.18±0.61 at 0 h to 5.76±0.04% after 4 h in KF. Both the breeds had stable eosinophil counts ranging from 5.34±0.50; 4.82±0.45 to 7.06±0.22; 5.765±0.04% and basophil counts ranging from 0 to 1% at different intervals of thermal exposure. Neutrophil-lymphocyte ratio revealed prompt and faster physiological adjustments in Sahiwal than KF while KF.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Prava Mayengbam
AU  - T.C. Tolenkhomba
AU  - R.C. Upadhyay
PY  - 2018/12
DA  - 2018/12
TI  - Variation in leukocyte counts of Sahiwal and Karan Fries cattle during acute thermal exposures
BT  - Proceedings of the Mizoram Science Congress 2018 (MSC 2018) - Perspective and Trends in the Development of Science Education and Research
PB  - Atlantis Press
SP  - 212
EP  - 214
SN  - 2352-5401
UR  - https://doi.org/10.2991/msc-18.2018.37
DO  - 10.2991/msc-18.2018.37
ID  - Mayengbam2018/12
ER  -