Ziętek J, Guz L, Wójcik A, Winiarczyk S, Adaszek Ł
Department of Epizootiology and Clinic of Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Głęboka 30, 20-612 Lublin, Poland.
Institute of Biological Bases of Animal Diseases, Subdepartment of Fish Diseases and Biology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-950 Lublin, Poland.
Pol J Vet Sci. 2019 Jun;22(2):61-65. doi: 10.24425/pjvs.2019.127094.
Edible snails are kept in farms in many countries worldwide. As farm animals, they are an object of interest of veterinary studies and applied biology. There is a large demand for tests which would help identify their health and well-being. The objective of this study was to assess the usefulness of determining the concentration of urea in hemolymph as a marker of health of the Lissachatina fulica and Cornu aspersum edible snails. The observation covered snails from four farms marked from A to D, in which numerous deaths (farm A) and decreased body weight gain (farms B and C) were observed. In experimental farm D we observed a group of snails subjected to stress and a control group maintained in correct conditions. High concentrations of urea were found in the hemolymph of all farm animals from farms A, B and C, as well as in those subjected to food deprivation in farm D (on average from 96 mg/dl in farm D to 320 mg/dl in farm A). On the other hand, in controls from group D, the concentration of the parameter in question was much lower (⟨ 2.0 mg/dl). The results obtained indicate that the urea concentration is a non-specific marker of pathological conditions in snails, and that the continuous monitoring of this parameter makes it possible to demonstrate irregularities in farming and introduce appropriate and early measures to eliminate such disturbances.
世界各地许多国家都在养殖场饲养食用蜗牛。作为家畜，它们是兽医研究和应用生物学感兴趣的对象。对有助于确定其健康状况的检测有很大需求。本研究的目的是评估测定血淋巴中尿素浓度作为褐云玛瑙螺和法国蜗牛健康标志物的有用性。观察对象包括来自四个标记为A至D的养殖场的蜗牛，其中在养殖场A观察到大量死亡，在养殖场B和C观察到体重增加减少。在实验养殖场D，我们观察了一组遭受应激的蜗牛和一组饲养在正确条件下的对照组。在养殖场A、B和C的所有家畜的血淋巴中，以及在养殖场D中遭受食物剥夺的蜗牛的血淋巴中，都发现了高浓度的尿素（平均从养殖场D的96毫克/分升降至养殖场A的320毫克/分升）。另一方面，在D组的对照组中，该参数的浓度要低得多（<2.0毫克/分升）。获得的结果表明，尿素浓度是蜗牛病理状况的非特异性标志物，持续监测该参数能够发现养殖中的异常情况，并采取适当的早期措施消除此类干扰。
