Abstract
In the tested ambient temperature range (i.e., between −7 and 30°C), it was asserted that calves physical regulatory system of temperature homeostasis regularly works, particularly under ambient winter conditions. In summer, only ambient temperatures near 31°C could lead to reduced operation of the thermoregulatory center with the presence of clinical signs. This finding is strengthened by the correlation between ambient and rectal temperatures (R 2=0.57; P<0.001); rectal temperature appears to remain constant within an ambient temperature range between 8°C and 28°C. Furthermore, ambient temperatures lower than −7°C cause a slight reduction in body temperature, while values higher than 29°C result in a more than proportional physical temperature increase, which are better interpolated using a polynomial equation.
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Abbreviations
- AT, RT, and ST:
-
Ambient, rectal, and subcutaneous temperatures
- BW:
-
Body weight
- HR:
-
Heart rate
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Bernardini, D., Gerardi, G., Degani, D., Guglielmini, C., Segato, S. (2012). Effects of Ambient Temperature on Calf Welfare Parameters During Long-Road Transportation. In: Pugliese, A., Gaiti, A., Boiti, C. (eds) Veterinary Science. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23271-8_10
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DOI: https://doi.org/10.1007/978-3-642-23271-8_10
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