Department of Pathobiology, School of Veterinary Medicine, Bahonar University of Kerman, Kerman, Iran.
Zahedan Veterinary Office, Sistan and Baluchestan Provincial Veterinary Service, Iranian Veterinary Organization, Zahedan, Iran.
Vet Med Sci. 2021 Jul;7(4):1230-1236. doi: 10.1002/vms3.475. Epub 2021 Mar 15.
This 8-year (from 2008 to 2016) retrospective study calculated the percentage of carcass and organ (lung and liver) condemnations and estimated the direct financial costs at four slaughterhouses in Sistan-Baluchestan Province, Southeastern Iran. Each carcass and organ (lung and liver) was thoroughly examined through inspection, palpation and incision following the standard protocol. Identification of the parasites was performed macroscopically. The total direct economic loss due to meat's condemnation was estimated by adding weights of each organ or carcass part and multiplying individual organ totals by their 2016 market unit price. A total of 857,039 cattle were slaughtered during this period, 64,497 livers (7.5%), 31,401 lungs (3.6%) and the carcasses of 1,171 cattle (0.1%) were condemned due to lesions caused by parasites. The main parasitic lesions in the condemned livers were attributed to Echinococcus granulosus (4.2%), Fasciola spp. (3.1%) and Dicrocoelium dendriticum (0.1%). All the condemned lungs were due to E. granulosus (3.6%). Taenia saginata cysticerci were detected in 0.1% of inspected animals. Liver condemnation due to cystic echinococcosis was the highest in fall (4.7%, p < 0.001); while lung condemnation was the highest during spring (3.98%, p < 0.001). Liver condemnation due to Fasciola spp. was the lowest in winter (2.99%, p < 0.001). Carcass condemnation as a result of cysticercosis was the highest in summer (p < 0.001). Considering the 2016 market prices, condemnations due to the studied parasites caused direct costs estimated U.S. $ 3,191,879. To the best of our knowledge, this is the first report estimating the monetary losses due to parasitic infections in the slaughterhouses of this province. Due to the high financial impact of the studied parasites, a control programme should be implemented to decrease this impact.
本研究回顾了 8 年（2008 年至 2016 年）期间在伊朗东南部锡斯坦和俾路支斯坦省的 4 个屠宰场的肉尸和器官（肺和肝）废弃率，并估算了直接经济损失。按照标准程序，通过检查、触诊和切开，对每头肉尸和每个器官（肺和肝）进行了彻底检查。通过肉眼识别寄生虫。通过计算每个器官或肉尸部分的重量，并将各个器官的总重量乘以其 2016 年的市场单价，来估算因肉类废弃而造成的总直接经济损失。在此期间共屠宰了 857039 头牛，有 64497 个肝（7.5%）、31401 个肺（3.6%）和 1171 个肉尸（0.1%）因寄生虫引起的病变而被废弃。由于寄生虫引起的病变而废弃的主要寄生虫病变归因于细粒棘球绦虫（4.2%）、片形吸虫（3.1%）和肝片形吸虫（0.1%）。所有废弃的肺都归因于细粒棘球绦虫（3.6%）。在 0.1%检查的动物中检测到了带绦虫囊尾蚴。秋季（4.7%，p<0.001）因囊型包虫病引起的肝废弃率最高；而春季（3.98%，p<0.001）的肺废弃率最高。冬季（2.99%，p<0.001）片形吸虫引起的肝废弃率最低。夏季（p<0.001）因囊尾蚴引起的肉尸废弃率最高。根据 2016 年的市场价格，因研究的寄生虫造成的废弃肉尸直接造成的损失估计为 319.1879 万美元。据我们所知，这是首次报道估计该省屠宰场因寄生虫感染造成的经济损失。鉴于研究的寄生虫具有很高的经济影响，应实施控制计划以减少这种影响。
