اثرات کوتاه مدت ریزگردها بر علائم حیاتی و برخی از فاکتورهای خونی و سرمی گاوهای نژاد هلشتاین در استان ایلام

نوع مقاله: علمی پژوهشی

نویسنده

استادیار دانشگاه ایلام، دانشکده پیرادامپزشکی، ایلام، ایران.

چکیده

ریزگردها که بسیاری از استانهای ایران را گرفتار خود ساخته­اند، آثار مخربی بر شرایط فیزیولوژیک انسان، گیاهان و دام­های این مناطق نیز داشته‌اند. هدف از این مطالعه، بررسی تأثیر کوتاه­مدت ریزگردها بر علائم حیاتی و بعضی از فاکتورهای خونی و سرمی گاوهای نژاد هلشتاین در استان ایلام می­باشد. در این مطالعه تعداد 80 رأس گاو ماده بالغ و سالم انتخاب شد. دو روز قبل از ورود ریزگردها علاوه بر ثبت علائم حیاتی، یک نمونه خون از هر دام اخذ شد (قبل از مواجهه). سپس در چهار نوبت مجزا (هر سه روز یک­بار)  ابتدا دمای بدن، تعداد ضربان قلب و تنفس آنها ثبت شد و در هر نوبت  به میزان 5 میلی­لیتر از ورید وداج آنها خون­گیری به­عمل آمد. ریزگردها سبب افزایش معنی­دار تعداد ضربان قلب و تنفس گاوها و همچنین میزان گلبول­های قرمز (RBC)، درصد هماتوکریت (PCV )، تعداد کل گلبول­های سفید (total WBC)،  لنفوسیت (LYM) و ائوزینوفیل­های (EOS)آن­ها نسبت به قبل از مواجهه شد (05/0p<). همچنین برخی از فاکتورهای سرمی از قبیل کلسترول (CHOL)، تری گلیسرید (TG)، اسید چرب با چگالی پایین (LDL)، اسید چرب با چگالی بالا (HDL)، پروتئین تام (TP) و پروتیئن واکنشیC (CRP) نسبت به قبل از مواجهه افزایش داشته که این افزایش فقط در مورد TG، TP و CRP معنی­دار بود (05/0p<). نتایج مطالعه نشان داد که ریزگردها در کوتاه­مدت سبب تغییرات در علائم حیاتی نظیر افزایش تنفس تعداد، ضربان قلب و تغییر در تعداد گلبول‌های سفید خون گاوهای هلشتاین می­شوند.

کلیدواژه‌ها


عنوان مقاله [English]

Short-term effects of dust (aerosols) on vital signs and some hematologic and serologic factors of Holstein cows in Ilam province

نویسنده [English]

  • Mehdi Rashnavadi
چکیده [English]

Aerosols have influenced many provinces of Iran for several years. In addition to its adverse effects on humans , it seems that it has impacted the physiological conditions of plants and domestic animals in affected areas. Therefore, in this study we are  investigating the short- term effects of aerosols on vital signs and some hematologic and serologic factors of holstein cows in Ilam province. In this study, 80 healthy and mature female cows were selected. At the beginning of our study and two days before the exposure, we recorded the cows’ vital signs including; temperature, heart rate and respiratory rate, we also took 5 ml jugular vein blood samples (before exposure group). Then, after exposure over four separate times (once in three days)  the aforementioned vital signs were recorded and the blood sample was taken. The obtained data before the exposure was then compared to the recorded data after exposure. The results showed that aerosols significantly increased the cows HR and RR. And the level of RBC, PCV(%), total WBC, NEUT and EOS were also increased significantly (p<0.05). Also, the data indicated that aerosols caused an increase in serum factors such as CHOL، TG، LDL، HDL، TP and CRP. However these differences were only significant in TG, TP and CRP (p<0.05). The results showed that aerosols caused changes in the vital signs and the number of WBC in the exposed group.

کلیدواژه‌ها [English]

  • Ilam
  • Aerosols
  • Cow
  • Hematologic and Serologic Factors
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