Thermal features, ambient temperature and hair coat lengths: Limitations of infrared imaging in pregnant primitive breed mares within a year.
Konik Polski
gestation
seasonal fluctuations; hair coat length
thermography
Journal
Reproduction in domestic animals = Zuchthygiene
ISSN: 1439-0531
Titre abrégé: Reprod Domest Anim
Pays: Germany
ID NLM: 9015668
Informations de publication
Date de publication:
Oct 2021
Oct 2021
Historique:
received:
02
06
2021
accepted:
24
07
2021
pubmed:
27
7
2021
medline:
9
11
2021
entrez:
26
7
2021
Statut:
ppublish
Résumé
Infrared thermography is a non-invasive technique which allows to distinguish between pregnant and non-pregnant animals. Detecting accurate body surface temperatures can be challenging due to external factors altering thermograph measurements. This study aimed to determine the associations between the ambient temperature, the hair coat features and the temperatures of mares' abdomens. It compared pregnant and non-pregnant mares throughout 11 months. The research was carried out on 40 Konik Polski mares, which were divided into pregnant and non-pregnant groups. The temperature (Tmax, maximal; Taver, average; Tmin, minimal) of the mares' abdomen was evaluated in two regions of interest: the whole area of the lateral surface of the mares' abdomen (Px1) and the flank area of the lateral surface of mares' abdomen (Px2). During the increasing period, the slopes in the linear regression equation did not differ significantly for ambient (Tamb) and surface temperatures in both groups. In the decreasing period, the slopes did not differ significantly for Tamb and Tmax in the non-pregnant group. They also did not differ for Tamb and Taver in Px1 and Tamb and Tmin in Px1 in both pregnant and non-pregnant groups respectively. Other slopes varied significantly (p < .001). There was no evidence of parallel changes in hair coat features and measured temperatures. The flank area appears more suitable for thermal imaging in pregnant mares due to the seasonal fluctuations in hair coat lengths.
Identifiants
pubmed: 34310786
doi: 10.1111/rda.13994
pmc: PMC9292174
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1315-1328Subventions
Organisme : National Science Centre in Poland
ID : 2019/03/X/NZ9/01759
Informations de copyright
© 2021 The Authors. Reproduction in Domestic Animals published by Wiley-VCH GmbH.
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