Camels and Camelids

TESTOSTERONE AND GROWTH HORMONE LEVELS IN FEMALE DROMEDARY CAMELS

Journal Edition: December 2021
Article DOI: 10.5958/2277-8934.2021.00057.6
Published On: 13-12-2021 21:24

Mohamed Tharwat1,2, Abdulla Al-Hawas1,3 and Ahmed Aldhubayi3
1Department of Veterinary Medicine, College of Agriculture and Veterinary Medicine,
Qassim University, P.O. Box 6622, Buraidah, 51452, Saudi Arabia
2Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, 44519, Zagazig, Egypt
3Veterinary Teaching Hospital, Qassim University, P.O. Box 6622, Buraidah, 51452, Saudi Arabia

ABSTRACT

This study was designed to establish the normal level of testosterone and growth hormone (GH) in female camels (Camelus dromedarius) starting at 6 months until 10 years of age. Two groups each of 55 clinically healthy female camels were used in this study. The first group was aged from 6 till 15 months while the second group was aged over 15 months until 10 years of age. Both camel testosterone and GH were analysed using double-antibody sandwich enzyme-linked immunosorbent one-step processes. For testosterone, the detectable assay range was 0-320 pg/mL and the minimum detected level was typically less than 1.0 pg/mL. For GH, the detectable assay range was 0-16 ng/mL and the minimum detected level was typically less than 0.1 ng/mL. Compared to a value of 51±9 pg/mL in camels aged 6 to 15 months, the testosterone value was 52±7 pg/mL in camels aged over 15 month until 10 years of age. The minimum and maximum levels in the first group were 34 pg/mL and 75 pg/mL, while the minimum and maximum levels in the second group were 37 pg/mL and 66 pg/mL, respectively. There was no statistically significant difference when compared testosterone values in both groups. Compared to a value of 2.7±0.4 ng/mL in camels aged 6 to 15 months, the GH value was 2.2±0.3 ng/mL in camels aged over 15 month until 10 years of age. The minimum and maximum levels in the first group were 1.9 ng/mL and 4.3 ng/mL, while the minimum and maximum levels in the second group were 1.6 ng/mL and 2.9 ng/mL, respectively. There was a highly statistically significant difference when compared GH values in both groups.
Key words: Beauty pageants, camel, dromedary, growth hormone, testosterone