Iranian Journal of Veterinary Medicine، جلد ۸، شماره ۳، صفحات ۱۹۹-۲۰۵
عنوان فارسی استرس حرارتی مزمن در گوسفند دنبه دار ایرانی ۱: پاارمترهای کلینیکی و پاارکلینیکی
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عنوان انگلیسی Chronic heat stress in Iranian fat-tailed ram lambs: clinical and paraclinical parameters
چکیده انگلیسی مقاله BACKGROUND: The effect of heat stress on physiologicalparameters has been well documented. However, there arereports of a genetic based heat tolerance in some sheep breeds.OBJECTIVES: The aim of the present study was to monitor thephysiological responses of an Iranian fat-tailed breed againstheat stress and an acute stress insult. METHODS:Atotal numberof 15 fall-born ram lambs were selected and subjected to directsummer solar radiation throughout the day (May 2009 toFebruary 2010). Ten lambs were semi-castrated in October to seethe physiologic response of animals to an acute stress. Thegeneral parameter as well as blood chemistry and cortisol wereanalyzed during the study. RESULTS: The results showed that allphysiologic parameters had significant changes; however, theirvalues were in normal range. The fact that the animals in thepresent study experienced their first exposure of heat stress anda significant increase in serum cortisol concentration in semicastratedlambs in October, compared to the respected values inthe hottest months of the experiment, may indicate a geneticbased adaptability of the breed in Iran. CONCLUSIONS: Thepresent study shows the dynamic changes of general andbiochemical parameters in response to chronic heat stress and anacute stress that raises a possible tolerance of the breed againstheat stress.
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نویسندگان مقاله فرید براتی |
department of clinical sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

محمد نوری |
department of clinical sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

سعد gooraninejad |
department of pathobiological sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

آناهیتا رضایی |
department of pathobiological sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

بهروز میهن دوست |
graduated from the faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

سید رضا فاطمی طباطبایی | seyed reza fatemi tabatabee
department of basic sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

نشانی اینترنتی http://ijvm.ut.ac.ir/article_51892_a5f697a86d186ee6426472fcb7b539f8.pdf
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