بررسی غلظت سرمی کورتیزول و تأثیر سن، جنس و فصل بر روی آن در شتر یک کوهانه (Camelus dromedarius)

نوع مقاله : مقاله کامل

نویسندگان

1 مرکز تحقیقات بیماری‌های مشترک انسان و حیوان، دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی یزد،‌ یزد، ‌ایران

2 گروه علوم درمانگاهی، دانشکده دامپزشکی، دانشگاه شهید باهنر کرمان، کرمان، ایران

3 گروه مدیریت بهداشت دام، دانشکده دامپزشکی، دانشگاه شیراز ،شیراز، ایران

4 گروه علوم آزمایشگاهی، دانشکده پیراپزشکی، دانشگاه علوم پزشکی شهید صدوقی یزد، یزد، ‌ایران

چکیده

در این مطالعه تأثیرات فصل، جنس و سن بر روی غلظت سرمی کورتیزول و هم‌بستگی آن با سن دام‌ها در 180 شتر تک ‌کوهانه‌ی سالم (شامل 146 شتر نر و 34 شتر ماده) بررسی گردید. غلظت سرمی کورتیزول تفاوت معنی‌داری بین دو جنس نر و ماده نداشت و نیز هم‌بستگی معنی‌داری با سن دام‌ها نداشت. بین دو فصل تابستان و زمستان تفاوت نسبتاً معنی‌داری از نظر غلظت سرمی کورتیزول مشاهده گردید (06/0=p). در شترهای نر هم‌بستگی نسبتاً معنی‌داری بین سن با غلظت سرمی کورتیزول وجود داشت (08/0=p ،146/0-=r). هم‌چنین غلظت سرمی کورتیزول تفاوت معنی‌داری بین گروه‌های سنی مختلف شتر نداشت. در گروه سنی کمتر از پنج سال، غلظت کورتیزول سرم تفاوت معنی‌داری بین دو فصل تابستان و زمستان داشت (044/0>p). مطالعه‌ی حاضر نشان داد که فصل، جنس و سن می‌تواند بر تغییرات کورتیزول سرم در شتر تک‌کوهانه اثر داشته باشد و ممکن است علت نتایج متناقض گزارش شده در مطالعات قبلی درباره‌ی کورتیزول سرم در این‌ گونه باشد و باید در مطالعات بعدی در این ‌گونه مورد توجه قرار گیرد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of serum concentration of cortisol, and the effects of age, sex and season in dromedary camels (Camelus dromedarius)

نویسندگان [English]

  • A. Sazmand 1
  • J. Tajik (Late) 2
  • A. Rasooli 3
  • S.H. Hekmati Moghaddam 4
1 Zoonotic Diseases Research Center, School of Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
2 Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University, Kerman, Iran.
3 Department of Animal Health Management, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
4 Department of Laboratory Sciences, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
چکیده [English]

In this study the effects of season, sex and age on serum concentration of cortisol, and its correlation with age in 180 clinically healthy dromedary camels (146 males and 34 females) were evaluated. Serum concentration of cortisol had no significant difference between two sexes, and had also no significant correlation with the age. There was a marginally significant difference between summer and winter seasons in serum cortisol (p=0.06). In male camels, there was a significant relationship between serum cortisol and the age (r=– 0.146, p=0.08). No significant differences were detected for the serum cortisol between different age groups of camels. In camels up to 5 years of age, the serum cortisol showed a significant difference between summer and winter seasons(p=0.044). The current study showed that season, sex and age may affect the changes of serum cortisol in dromedary camels, and can be proposed as the probable cause of controversial findings regarding serum cortisol in previous studies.

کلیدواژه‌ها [English]

  • Camel
  • Cortisol
  • Age
  • Sex
  • Season
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