Salivary and plasma concentration of cortisol in normal horses and horses with Cushing's disease

Kolk, Johannes H. van der; Rf, Nachreiner; Schott, Harold C.; Refsal, Kent R.; Zanella, A. J.

doi:10.1111/j.2042-3306.2001.tb00604.x

Cited by 41 publications

(11 citation statements)

References 9 publications

(9 reference statements)

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“…ACTH administration also increased plasma and salivary cortisol concentrations over time (van der Kolk et al . ). The detailed studies performed by Peeters et al .…”

Section: Discussionmentioning

confidence: 97%

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Changes in salivary and plasma cortisol levels inPurebredArabian horses during race training session

Kędzierski

Cywińska

Strzelec

et al. 2013

Animal Science Journal

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Physical activity and stress both cause an increase in cortisol release ratio. The aim of this study was to evaluate the use of saliva samples for the determination of cortisol concentrations indicating the work-load level in horses during race training. Twelve Purebred Arabian horses aged 3-5 years were studied during the routine training session. After the warm-up, the horses galloped on the 800 m sand track at a speed of 12.8 m/s. Three saliva samples, and three blood samples were collected from each horse. Both types of samples were taken at rest, immediately after return from the track and after 30 min restitution. The concentrations of blood lactic acid (LA), and cortisol in saliva and plasma samples were measured and analyzed. Blood LA, plasma and salivary cortisol levels increased significantly after exercise (P < 0.05). Salivary cortisol concentration determined 30 min after the exercise correlated significantly with plasma cortisol level obtained immediately after exercise (P < 0.05) as well as measured 30 min after the end of exercise (P < 0.05). The determination of cortisol concentration in saliva samples taken from racehorses 30 min after the end of exercise can be recommended to use in field conditions to estimate the work-load in racehorses.

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“…ACTH administration also increased plasma and salivary cortisol concentrations over time (van der Kolk et al . ). The detailed studies performed by Peeters et al .…”

Section: Discussionmentioning

confidence: 97%

“…The high correlation coefficient, which has been found between blood plasma and salivary cortisol concentrations in horses, permitted the validation of saliva‐sampling as a technique for the measurement of cortisol release (van der Kolk et al . ; Schmidt et al . ; Peeters et al .…”

Section: Introductionmentioning

confidence: 99%

Changes in salivary and plasma cortisol levels inPurebredArabian horses during race training session

Kędzierski

Cywińska

Strzelec

et al. 2013

Animal Science Journal

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“…Different methodologies for stress assessment among animals have been developed. Until recently, the main measurement of stress in animals has been the concentrations of cortisol in their blood, feces, and saliva [4,5]. Additional parameters for stress determination (employed in various equestrian competitions) are heart rate (HR), respiratory rate (RR), and rectal temperature (RT) [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Validation of Eye Temperature Assessed Using Infrared Thermography as an Indicator of Welfare in Horses

Kim

Cho

2021

Applied Sciences

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This study aimed to validate eye temperature (ET) assessed using infrared thermography (IRT) as an indicator of welfare in horses. Moreover, this study aimed to determine the most accurate position for ET measured using IRT and to validate this approach as a gold-standard measurement method. As the quantitative data obtained by IRT have strongly influenced the ET results depending on the specific location of the measurement area, an accurate definition of the regions of interest (ROI) was established. A total of 176 horses (Thoroughbred, Warmblood, and Halla horses) were used at the racing course of the Korea Racing Authority and public horse-riding clubs in South Korea. The present study also compared temperatures among three ROIs of the eye—lacrimal sac, medial canthus, and lateral canthus—at rest. Correlations between ET, rectal temperature (RT), heart rate (HR), and respiratory rate (RR) were assessed. There were no significant correlations between HR, RR or RT; however, among the three ROIs, the temperature of the medial canthus was positively correlated with RT (p < 0.05). Furthermore, the size of ROI was negatively correlated with accuracy of temperature measurement. These results indicate that the most suitable area for ET measurement using IRT in horses is the medial canthus, and it is recommended to use the average temperature of the smallest ROIs (2 × 2 pixels) for temperature analysis. Therefore, this study offers a validated protocol in which ET measured using IRT in the horses is useful as an indicator of welfare.

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“…Van der Kolk et al (2001) observed the concentrations of salivary cortisol in horses with Cushing´s disease and healthy horses. The levels of cortisol have been artificially decreased overnight by application of dexamethasone from 1.85 ng/mL to 1.60 ng/mL.…”

Section: Resultsmentioning

confidence: 99%

Salivary cortisol concentrations changes in horses during daily routine

Massányi¹

2021

Acta fytotechn zootechn

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The aim of the study was to observe the salivary concentrations of cortisol in horses during daily routine over the course of four weeks lasting experiment in three different stages of day to monitor the changing values of cortisol in horse saliva during the day. Saliva was obtained from 12 Slovak warmblood horses-1 stallion, 6 mares and 5 geldings. In the experiment we focused purely on changes of salivary cortisol concentrations over the course of the daily routine.The results shown us multiple significant changes between individual sample collections and thus, we can state that according to our results the highest concentration of cortisol in horse saliva is in the morning and it decreases throughout the day with lowest measured concentrations being in the final sample collection of the day (at 22:00). These changes had no visible effect on horses´ organism throughout entirety of the experiment and were caused due to horses daily rhythm.

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Salivary and plasma concentration of cortisol in normal horses and horses with Cushing's disease

Cited by 41 publications

References 9 publications

Changes in salivary and plasma cortisol levels inPurebredArabian horses during race training session

Changes in salivary and plasma cortisol levels inPurebredArabian horses during race training session

Validation of Eye Temperature Assessed Using Infrared Thermography as an Indicator of Welfare in Horses

Salivary cortisol concentrations changes in horses during daily routine

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