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      • Open Access Article

        1 - ارزیابی ارتباط بین شدت آلودگی به ترماتودهای کبدی و میزان دفع تخم انگل در نشخوارکنندگان بومی شهرستان بهشهر
        شاهرخ رنجبربهادری محمدتقی ذاتی رستمی صمد لطف ا لله زاده بهار شمشادی
      • Open Access Article

        2 - Study on the role of age, sex and season on the prevalence of fascioliasis and dicrocoeliasis in animals slaughtered in Tabriz slaughterhouse
        Nasser Hajipour Hadi Valizadeh Parviz Hassanzadeh
        Liver trematodes, including Fasciola and Dicrocoelium species, are zoonotic parasites that cause high mortality and economic losses in ruminants. This study aimed to investigate the effect of age, sex, and season on the prevalence of fasciolosis and More
        Liver trematodes, including Fasciola and Dicrocoelium species, are zoonotic parasites that cause high mortality and economic losses in ruminants. This study aimed to investigate the effect of age, sex, and season on the prevalence of fasciolosis and dicrosliosis in slaughtered animals in the Tabriz slaughterhouse. During two years, livers of 4150 cows, 500 buffaloes, 2000 goats, and 5000 sheep were examined for the presence of Fasciola hepatica, Fasciola gigantica, and Dicrocoelium dendriticum by incisions on the liver and ocular observation. The results showed that 5.4%, 16%, and 6% of slaughtered cows, sheep, and goats were infected with liver trematodes (P<0.05), respectively. Of the 500 buffaloes studied, no liver trematode was isolated. The prevalence of parasitic infection in all three animals increased significantly with the age (P<0.05). In female cows and sheep, the rate of liver trematode infection was significantly higher than in males (P<0.05). The highest and lowest prevalence was observed in summer in spring, respectively. The highest frequency of parasites and severity of infection in all studied animals was related to Dicrocoelium dendriticum and the lowest was related to Fasciola gigantica (P<0.05). Based on the market day price, the number of economic losses due to the condemnation of liver of cows, sheep, and goats due to trematode infections were estimated at 402,240,000 (3656.72 USD), 576,576,000 (5241.6 USD), and 28,545,000 (259.5 USD) RIAL, respectively. Due to the history of the human fascioliasis epidemic and economic damage caused by liver condemnation in this area, effective control methods are suggested. Manuscript profile
      • Open Access Article

        3 - Retrospective study on the prevalence of Hydatid cyst, Fasciola species and Dicrocelium dendriticum in the liver of sheep and goats slaughtered in Saveh slaughterhouse, Markazi province and the estimation of economic losses caused by their liver condemnation from 2014 to 2020
        Nasser Hajipour
        Some zoonotic parasites such as Hydatid cyst, Fasciola species and Dicrocelium dendriticum cause death and economic losses in ruminants. The aim of this study was to investigate the prevalence rate of liver parasites in sheep and goats slaughtered in Saveh slaughterhous More
        Some zoonotic parasites such as Hydatid cyst, Fasciola species and Dicrocelium dendriticum cause death and economic losses in ruminants. The aim of this study was to investigate the prevalence rate of liver parasites in sheep and goats slaughtered in Saveh slaughterhouse and to estimate the economic losses caused by their condemnation. In a retrospective study, from April 2014 to April 2020, a total of 58,699 animals including 13,044 goats and 45,655 sheep were inspected in Saveh slaughterhouse for liver contamination with Hydatid cyst, Fasciola species and Dicrocelium dendriticum. The results showed that 72.85% of the animals were infected with parasites, 41.18%, 28.08%, and, 3.58% were infected with Dicrocelium dendriticum, Hydatid cyst, and Fasciola species, respectively. There was a statistically significant. The rate of infection with Dicrocelium dendriticum, Hydatid cyst and Fasciola species was 21.70%, 17.44%, and 1.33% in sheep and 16.48%, 10.64%, and 2.25% in goats, respectively. Statistically, the prevalence rate of liver infection with seasons was not significant except for 2015. The economic losses caused by the condemnation of the liver of slaughtered sheep and goats were estimated at 23,324,560,000 Rials ($241,330.16). With the high prevalence of parasitic diseases in small ruminants in the region and the economic losses caused by the condemnation of infected livers, and due to the fact that these diseases are zoonotic, it is crucial to use appropriate management methods to prevent or control the disease by competent authorities. Manuscript profile
      • Open Access Article

        4 - Investigation of the Prevalence of Dicrocolium dendriticum Infection in Sheep and Goat s in Slaughterhouses of Najafabad and Lanjan in Isfahan Province and Evaluation of Its Pathologic Lesions in the Liver
        H. Saboktakin Y. Pirali E. Moghtadaiee
        Dicloleosis is the common disease among ruminants that is caused by different dicrocolemia species. This parasite is observed in the bile duct and gallblader of the ruminants and randomly in humans. The economic and veterinary significance of Dicrocoelium is due to its More
        Dicloleosis is the common disease among ruminants that is caused by different dicrocolemia species. This parasite is observed in the bile duct and gallblader of the ruminants and randomly in humans. The economic and veterinary significance of Dicrocoelium is due to its direct damage to the liver, resulting in the loss of significant amounts of valuable protein substances from human diets due to the elimination of contaminated liver in slaughterhouses. The intermediate hosts of this parasite are earthworms (the first hosts) and ant Formaica (the second host). In order to investigate the prevalence of Dicrocoelium dendriticum infection in sheep and goat in slaughterhouses of Lenjan and Najafabad for four seasons (autumn-winter, spring and summer) of 131521 sheep livers and 19672 goat livers inspected in Najafabad slaughterhouse, 4660 and 193 sheep and goat livers were infected by dicorrosilum parasites. moreover, of 45713 sheep livers and 3726 goat livers inspected in the Lanjan slaughterhouse, 4281 and 72 sheep and goat livers were infected by Dicrocoelium parasite, respectively. A total of 30 infected liver samples were collected for histopathologic studies and then they were examined after lamination and staining with hematoxylin and eosin method. As a result of liver infections, liver tissue destruction, enlarged connective tissue, bile duct hyperplasia, formation of granuloma, liver tissue necrosis, presence of inflammatory cells in tissue and calcification were observed. Manuscript profile
      • Open Access Article

        5 - Evaluation of Hematological and Biochemical Parameters in Infected Mehraban Sheep with Hydatid Cyst and Hepatitis Trematoda in Hamadan Industrial Slaughterhouse 2015
        Heydar Heydari Hamidreza Zahiri Azam Hosseini Parmis Notghi Saeideh Ayneh Azadeh Hosseini Elaheh Shams Hossein vazini
        Background; Livestock is the most important source of human food chain and the main source of protein. Parasitic diseases cause economic damage and have adverse effects on the health of animals and humans.Study plan; In this study, hematologic and biochemical parameters More
        Background; Livestock is the most important source of human food chain and the main source of protein. Parasitic diseases cause economic damage and have adverse effects on the health of animals and humans.Study plan; In this study, hematologic and biochemical parameters in hepatocyte infected sheep at Hamedan industrial slaughterhouse in 2015 were investigated.Animals studied; 220 Mehraban sheep breed by different ages were randomly collected from Hamedan slaughterhouses. The sheep were divided into four groups: 50 sheep infected with fasciolopsis (first infected group), 50 cases infected with hydatid cyst (second infected group), 20 cases infected with dicrucylose (three infected group) and 100 healthy sheep (control group).Method; The sheep were examined for macroscopic examination for hydatid cyst and hepatic trematoda. The blood sample was taken from the jugular vein of sheep. Blood and serum samples were tested. SPSS software was used to analyze the data.Results; The results showed that between the total number of red blood cells (RBC), mean corpuscular hemoglobin concentration (MCHC), hemoglobin (Hb), Mean Corpuscular Hemoglobin (MCH), mean cell volume (MCV), white blood cell (WBC) ) And aspartate transferase (AST), alanine transferase (ALT), alkaline phosphatase (ALP) enzymes were significantly different in the infected groups than the healthy group (P Manuscript profile