تاثیر نوسانات روزانه دمایی بر روی پارامترهای هماتولوژی ، بیوشیمیایی و انعقادی در گاوهای نژاد هلشتاین

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه علوم درمانگاهی، دانشکده دامپزشکی، واحد کرج، دانشگاه آزاد اسلامی، کرج، ایران

10.22034/AEJ.2021.275967.2475

چکیده

پارامتر­های خونی و بیوشیمیایی، به عنوان شاخص پاسخ دام، می تواند به عنوان مبنایی جهت تشخیص، درمان و پیش آگهی بیماری ­ها باشد. به منظور بررسی اثر نوسانات روزانه دمایی بر روی پارامترها­ی هماتولوژی، بیوشیمیایی، انعقادی و هورمونی نمونه ­گیری بر روی 20 راس گاو نژاد هلشتاین در یک روز تابستان در منطقه نظر آباد واقع در استان البرز و در سه نوبت انجام شد. RBC، Hb، HCT ،MCV  ،MCH ،MCHC شمارش تام و تفریقیWBC ،AST ،GGT، گلوکز، اوره، پروتئین تام، آلبومین، فیبرینوژن، PT و APTT، پلاکت و غلظت کورتیزول مورد سنجش قرار گرفت. هم زمان با هر نوبت خون­گیری اندازه گیری درجه حرارت رکتال انجام شد. بر اساس نتایج به دست آمده RBC ،Hb ،HCT ،MCV ،MCH ،MCHC، اوره و کورتیزول در نوبت دوم خون­گیری (دمای 39 درجه سانتی گراد)، نسبت به دو نوبت دیگر (نوبت اول: 25 درجه سانتی گراد، نوبت سوم : 32 درجه سانتی گراد) با افزایش غیر معنی دار همراه بود. هم چنین افزایش معنی دار تعداد تام WBC، نوتروفیل و مونوسیت، پروتئین تام، آلبومین، AST ،GGT، درجه حرارت رکتال و کاهش تعداد ائوزینوفیل ها در این نوبت مشاهده شد. در ارتباط با APTT ،PT و تعداد پلاکت ها تغییرات معنی دار نبود. با توجه به نتایج حاصل از این مطالعه تغییرات روزانه دمایی و بروز استرس گرمایی ملایم می تواند بر برخی از فاکتورهای هماتولوژی و بیوشیمیایی تأثیرگذار باشد و در هنگام ارزیابی پروفایل هماتولوژی و بیوشیمیایی و تفسیر آن بایستی تغییرات روزانه دمایی را مد نظر قرار داد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The effect of daily temperature fluctuation on hematological, biochemical and coagulation parameters in Holstein cattle

نویسندگان [English]

  • Masoud Morshedi
  • Seyedeh Parastoo Yasini
  • Alireza shaghayegh
Department of Clinical Science, Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Karaj, Iran
چکیده [English]

Hematological and biochemical parameters, as livestock response indicator, can be used as a basis for diagnosis, treatment, and prognosis of diseases.  Blood samples were collected from 20 Holstein cows to investigate the effect of daily temperature fluctuation on hematological, biochemical, coagulation and hormonal parameters. Sampling was done three times per day that is in the morning, at noon and in the evening on a summer day in Nazarabad, Alborz province. RBC, Hb, HCT, MCV, MCH, MCHC, total and differential white blood cell (WBC) counts, AST, GGT, glucose, urea, total protein, albumin, fibrinogen, cortisol concentration, PT and APTT and platelet were measured.  Rectal temperature was measured at the same time of blood sampling. According to the results, there was an insignificant increase in RBC, Hb, HCT, MCV, MCH, MCHC, urea and cortisol in the second time of blood sampling (39Cº) compared to the other two times (The first time: 25Cº, the third time: 32Cº). Also, a significant increase in the total number of white blood cells, neutrophils, monocytes, total protein, albumin, AST, GGT and rectal temperature and a decrease in the number of eosinophils were observed in second sampling. No significant changes were observed in APTT, PT and platelet count. The evaluation of clinical indicators under heat stress showed a significant increase in rectal temperature. According to the results of this study, daily temperature fluctuation and mild heat stress can affect hematological and biochemical factors and should be considered for the evaluation and interpretation of hematological and biochemical profiles.

کلیدواژه‌ها [English]

  • Temperature fluctuation
  • Hematological
  • Biochemical
  • Coagulation
  • Holstein cattle

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فصلنامه محیط زیست جانوری
دوره 14، شماره 1
شماره بهار
اردیبهشت 1401
صفحه 23-30

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