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

被引:1
作者
Tucker, Bryony S. [1 ]
Petrovski, Kiro R. [1 ,2 ]
Craig, Jessica R. [3 ]
Morrison, Rebecca S. [3 ]
Smits, Robert J. [4 ,5 ]
Kirkwood, Roy N. [1 ]
机构
[1] Univ Adelaide, Sch Anim & Vet Sci, Roseworthy, SA 5371, Australia
[2] Univ Adelaide, Davies Livestock Res Ctr, Roseworthy, SA 5371, Australia
[3] Rivalea Australia Pty Ltd, JBS Australia Pork Div, Corowa, NSW 2646, Australia
[4] Australian Pork Ltd, Res & Innovat, Barton, ACT 2600, Australia
[5] TRI Advice Pty Ltd, Macgregor, ACT 2615, Australia
来源
ANIMALS | 2023年 / 13卷 / 20期
关键词
piglet; birth weight; temperature; rectal; surface; infrared camera; thermoregulation; COLOSTRUM INTAKE; SURVIVAL; MORTALITY; HYPOTHERMIA; GAIN;
D O I
10.3390/ani13203259
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Simple Summary Piglets experience a significant temperature drop soon after birth and the time taken to recover can impact their survival and growth. Rectal temperature is the best method currently used to monitor temperature change, however, it is invasive and requires handling which can be stressful. Infrared camera technology has improved and surface temperature has been suggested to be a good substitute for rectal temperature. A study was undertaken to investigate the utility of infrared measurements of piglets from immediately after birth to 24 h old. Results showed that surface temperature had a similar temperature pattern to rectal temperature but was highly affected by the environment and cannot be recommended as a substitute for rectal temperature measurement.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 degrees C), RC2 (32.1 to 35.0 degrees C), or RC3 (>= 35.1 degrees 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.
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