Inhibition Effect of pH on the Hatchability of Fasciola Miracidia under Laboratory Conditions.
نویسندگان
چکیده
BACKGROUND Fasciolosis, caused by the liver flukes of the genus Fasciola, is one of the most prevalent diseases of domestic livestock and human throughout the world, imposing considerable economic losses. The present study was aimed to assess the effects of different pH values on hatching rate of Fasciola miracidia. METHODS The flukes were isolated from the infected livers of the slaughtered ruminants at the abattoir of Urmia City, Iran, crushed thoroughly and sieved for isolation of the Fasciola eggs. The eggs were washed up several times by PBS (0.01N, pH 7.2). They were incubated at different pH values of 7±0.1 (control) and 3-9.5 (treatments) at 28°C for 16 days. RESULTS The maximum hatching rate was observed at pH 7 (14.93±0.65%), while no miracidia were hatched at pH 3 and/or pH 9-9.5. There were significant differences between the hatching rate of the treatments and that of the control group. CONCLUSION Water pH is proven to be a crucial factor affecting the life cycle of Fasciola and its epidemiology.
منابع مشابه
Further Observation on the Susceptibility of Different Species of Lymnaea Snails of Iran to Miracidia of Fasciola hepatica and Fasciola gigantica
متن کامل
اثر وزن و مدت زمان نگهداری بر pH آلبومین و قدرت جوجه درآوری تخم مرغهای قابل جوجه کشی
This study aims to determine the effects of storage period and egg weight on albumen pH and hatchability of hatching eggs. For this purpose, the eggs produced by native breeder hens (28 - 31 weeks of age) were used in a completely randomized design with a 3 × 8 factorial arrangement. The main factors were 3 egg weight ranges (46 - 49, 50 - 52 and 53 - 56) and 8 storage periods (1, 3, 6, 9, 12, ...
متن کاملاثر وزن و مدت زمان نگهداری بر pH آلبومین و قدرت جوجه درآوری تخم مرغهای قابل جوجه کشی
This study aims to determine the effects of storage period and egg weight on albumen pH and hatchability of hatching eggs. For this purpose, the eggs produced by native breeder hens (28 - 31 weeks of age) were used in a completely randomized design with a 3 × 8 factorial arrangement. The main factors were 3 egg weight ranges (46 - 49, 50 - 52 and 53 - 56) and 8 storage periods (1, 3, 6, 9, 12, ...
متن کاملExtremely low frequency magnetic field and the hatching rate of Fasciola hepatica eggs, the fecundity and survival of liver fluke-infected snail, Lymnaea truncatula.
Eggs of Fasciola hepatica were exposed for 10 days to extremely low frequency magnetic field (ELFMF) at the frequency of 50 Hz and density of 2 mT (rms). The results show an accelerated hatching of F. hepatica eggs in relation to control (non-exposed) group. The host snails, Lymnaea truncatula, were divided into three groups; those of groups I and II were infected with the miracidia of F. hepat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Iranian journal of parasitology
دوره 11 1 شماره
صفحات -
تاریخ انتشار 2016