Document Type : Case Report
Authors
1 Department of Clinical Sciences, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
2 Equine Veterinary Practitioner, Hamedan, Iran
3 Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamedan, Iran.
4 Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
Abstract
Keywords
Article Title [Persian]
Authors [Persian]
در تیرماه سال 1397 تعداد 3 راس اسب بالغ دو خون در محل یک دامداری در نزدیکی همدان تلف شدند. در بازرسی لاشهها جمود نعشی رخ داده بود ولی نشانهای از نفخ پس از مرگ مشاهده نشد. در کالبدگشایی، عضلات ناحیه گردن لاشهها پرخونی سیاهرنگی را نشان میداد. به علاوه، در عضلات بین دندهای در سطح داخلی قفسهسینه نیز نقاط خونریزی سرسوزنی فراوان ادم در سطح داخلی دیواره شکم و پرده صفاقی وجود داشت. محتویات معده هر سه اسب به شدت آبکی و مخاط آنها به رنگ خاکستری بود. کبدها به وضوح سیاه رنگ بودند و دوازدهه در مجاورت کبد پر گاز و به شدت سیاه رنگ شده بود. کلیهها تا حدی اتولیز را نشان میدادند و در بعضی نقاط آنها اندکی پرخونی مرکزی مشاهده شد. علاوه بر بوی ناشی از فساد، بوی خاصی شبیه به بوی سیر یا گاز شهری از لاشهها استشمام میشد. نمونههای بافتی و محتویات چند عضو برای آزمایشهای تشخیصی جمع آوری شدند. بررسیهای اولیه سمشناسی مقادیر قابل شناسایی فسفین را در نمونههای محتویات معده حیوانات تلف شده نشان داد و آزمایشات تکمیلی، نوع سم موجود در کنسانتره این اسبها را فسفید روی تایید کرد.
Keywords [Persian]
Case History
On June 28, 2018, the sudden death of three 8-year-old crossbred Thoroughbred horses, including two mares and one stallion was reported from a barn at Qerkhler, a village in Hamedan, Iran. The animals were necropsied and thoroughly examined by a large animal internal medicine specialist shortly after the notification call. According to the farm owner's declaration and based on the daily inspections of the farm guard, the animals had probably died during the previous evening.
The dead horses were laid on the left lateral sides with no signs of post-mortem bloating. No signs of trauma, contusion, subcutaneous inflammation, and emphysema were observed or palpated. Complete rigor mortis was reversing with the loosening of the proximal part of the neck. There was no bleeding and/or fluid discharge from the natural orifices. The ocular conjunctivas were hyperemic and edematous. Moreover, the neck muscles appeared cyanotic with obvious venous congestion. The inner surface of the abdominal wall and parietal peritoneum were edematous. Furthermore, hypostasis was evident on the left side of all the internal organs in all carcasses. In addition to the odor caused by the decomposition of the carcasses, a specific odor similar to the smell of natural gas or fresh garlic was noticeable.
Although the lungs were normal in size, numerous spots of pinpoint petechial hemo-rrhage were observed on the neighboring inner surface of the inter-costal muscles. Black gray discolorations were found in the tracheal mucosa. Hearts were normal in terms of size and texture. However, the superficial veins of the hearts were congested along with the imbibition of blood into the surrounding myocardial tissues. The heart muscles were hyperemic with the ventricles containing dark unclotted blood with blood imbibition of the endocardium (Figure 1). The medulla of moderately autolyzed kidneys was slightly hyperemic.