Associations between Surface and Rectal Temperature Profiles of Low-Birth-Weight Piglets

Author:

Tucker Bryony S.1ORCID,Petrovski Kiro R.12ORCID,Craig Jessica R.3ORCID,Morrison Rebecca S.3ORCID,Smits Robert J.4,Kirkwood Roy N.1ORCID

Affiliation:

1. School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia

2. Davies Livestock Research Centre, The University of Adelaide, Roseworthy, SA 5371, Australia

3. Rivalea Australia Pty. Ltd., JBS Australia Pork Division, Corowa, NSW 2646, Australia

4. Research and Innovation, Australian Pork Limited, Barton, ACT 2600, Australia

Abstract

The use of infrared cameras to record surface temperature has shown some promise in older pigs, but neonatal piglets are metabolically less mature and experience rapid temperature changes during their first 24 h. The present experiment aimed to compare rectal temperature to surface temperature at the base of the ear, measured using an infrared camera, for piglets of different birth weights. During farrowing, 48 multiparous sows were monitored, and rectal and surface temperatures were recorded for their lower-birth-weight (≤1.2 kg) piglets within 3 min of birth and at 0.25, 0.50, 0.75, 1, 1.25, 1.50, 2, 3, 4, and 24 h. Piglet birth weights were assigned to one of three categories (BWC): BWC1 (≤0.80 kg), BWC2 (0.81 to 1.10 kg), or BWC3 (1.11 to 1.20 kg). Piglet rectal temperatures at 1.25 h after birth were assigned to one of three categories: RC1 (≤32.0 °C), RC2 (32.1 to 35.0 °C), or RC3 (≥35.1 °C). Surface temperatures showed a similar recovery pattern to rectal temperatures in the first 24 h across all piglet birth weights, although large and variable differences seen in the current study militate against surface temperature being an appropriate replacement for neonatal rectal temperature for use in production.

Funder

Australian Pork Limited

Publisher

MDPI AG

Subject

General Veterinary,Animal Science and Zoology

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