mahsa
Member
اين مطلب كه آيا غريزه وحشي اسب ها قرن ها اهلي شدنشان هنوز در آن ها باقي مانده است يا خير ناشناخته بوده و تحقيقات انگشت شماري در اين مورد انجام شده است . آگاهي در اين زمينه نه تنها به سوار كاران اين امكان را مي دهد كه در مورد رفتارهاي اسب خود بيشتر بدانند بلكه ضامن امنيت اسب و سوار حين سواري بخصوص هنگام سواري در گشت مي باشد . در اين تحقيق ، ما واكنش هاي رفتاري و فيزبولوژيكي اسبچه خزر ا ردر مواجهه با محرك بويائي و شنوائي حيوان وحشي ( شير ) مطالعه كرده و اين مطلب را كه كداميك از محرك ها ( محرك بويائي يا شنوائي ) ، اسب را بيشتر تحت تاثير قرار ميدهد بررسي نموديم . محو.طه تست يك پادوك چمن بود كه توسط ابزار مورد نياز براي آزمايش مجهز گرديد . زمان هر تست 8-5 دقيقه تعيين گرديد . آزمايش ها براي بررسي واكنش هاي رفتاري ( هشياري ، راه رفتن ، يورتمه ، قدم ، پائيدن اطراف ، دفع و مدفوع و ادار) و فيزيولوژيكي ( اندازه گيري ضربان قلب ، قبل و بعد از مواجهه با محرك حيوان وحشي ) اسب ها نسبت به محرك هاي ناشناخته بويايي و شنيداري طراحي گرديده بود . آزمايش ها تحت شرايط استاندارد بر روي 15 اسبچه خزر با سن و جنس مختلف انجام شد . ما اين نكته را كه اسب ها چگونه به محرك شنيداري و بويايي شير واكنش نشان ميدهد بررسي كرديم . در اين آزمايش محرك بويائي ، ( مدفوع شير ) و محرك شنيداري ، (صداي نعره شير ) بود . در تست بويايي اسب ها واكنش هاي رفتاري بيشتري نسبت به تست كنترل نشان دادند . تنها واكنش رفتاريئي كه اسب ها در تست بويائي انجام نداند، رفتار پرش بود . علاوه بر اين محرك بويائي موجب افزايش ضربان قلب اسب ها نسبت به تست كنترل گرديد .در تست شنيداري ، اسب ها واكنش هاي رفتاري بيشتري نسبت به تست بويائي نشان دادند . آنها در مواجه با صداي نعره شير ، رفتار پرش را از خود نشان دادند كه در تست هاي پيشين چنين رفتاري مشاهده نشده بود . علاوه بر اين ، محرك شنيداري موجب افزايش چشمگير ضربان قلب نسبت به ساير تست ها گرديد
چکیده (انگلیسی):
It is not known whether the instincts of wild horses have remained strong during their centuries of domestication. Knowledge of this matter would give riders the opportunity to know more about the behavior of horses and consequently about safety for both horses and riders. In this current research, we studied the behavior of fifteen Caspian miniature horses of different ages and sexes using stimuli from predators under standardized conditions. We explored whether olfactory (lion feces) or auditory (lion roars) stimuli affected horses to a greater extent. The test arena was an appropriately equipped grass paddock, in which horses spent between 5 and 8 min. The experiments were designed to investigate behavioral responses in locomotive activity (alertness, standing, walking, trotting, exploration and other), eliminatory behavior (defecation, urination) and physiological responses (heart rates before and after the predator stimuli) of horses to novel auditory and olfactory stimuli. In the olfactory experiment, we found that the horses showed significantly more behavioral reactions compared to the control experiment (where horses were not exposed to any stimuli); the only behavioral reaction the horses did not show was flight reaction. Additionally, heart rate was significantly increased after olfactory stimuli compared to auditory stimuli. In the auditory experiment, we found that horses showed more behavioral reactions in response to the roar of the lion compared to the olfactory stimulus, including flight reactions. We concluded that the auditory stimuli caused significantly higher heart rate responses when compared to the olfactory stimuli
مجله بين المللي تحقيقات دامپزشکي (دوره: 4, شماره: 1)
نویسنده: محسن احمدي نژاد ، عليرضا حسني ، فائزه خرازيان
چکیده (انگلیسی):
It is not known whether the instincts of wild horses have remained strong during their centuries of domestication. Knowledge of this matter would give riders the opportunity to know more about the behavior of horses and consequently about safety for both horses and riders. In this current research, we studied the behavior of fifteen Caspian miniature horses of different ages and sexes using stimuli from predators under standardized conditions. We explored whether olfactory (lion feces) or auditory (lion roars) stimuli affected horses to a greater extent. The test arena was an appropriately equipped grass paddock, in which horses spent between 5 and 8 min. The experiments were designed to investigate behavioral responses in locomotive activity (alertness, standing, walking, trotting, exploration and other), eliminatory behavior (defecation, urination) and physiological responses (heart rates before and after the predator stimuli) of horses to novel auditory and olfactory stimuli. In the olfactory experiment, we found that the horses showed significantly more behavioral reactions compared to the control experiment (where horses were not exposed to any stimuli); the only behavioral reaction the horses did not show was flight reaction. Additionally, heart rate was significantly increased after olfactory stimuli compared to auditory stimuli. In the auditory experiment, we found that horses showed more behavioral reactions in response to the roar of the lion compared to the olfactory stimulus, including flight reactions. We concluded that the auditory stimuli caused significantly higher heart rate responses when compared to the olfactory stimuli
مجله بين المللي تحقيقات دامپزشکي (دوره: 4, شماره: 1)
نویسنده: محسن احمدي نژاد ، عليرضا حسني ، فائزه خرازيان
