The Occurrence of Fascioloides magna and Fasciola hepatica Together in the Livers of Naturally Infected Cattle in South Texas, and the Incidence of the Flukes in Cattle, White-Tailed Deer, and Feral Hogs

1972 ◽  
Vol 58 (5) ◽  
pp. 1010 ◽  
Author(s):  
William J. Foreyt ◽  
A. C. Todd
Keyword(s):  
Fasciola Hepatica ◽  
South Texas ◽  
Infected Cattle ◽  
Fascioloides Magna ◽  
Feral Hogs

scholarly journals Fasciola hepatica findings in cattle of Jablanica region

2007 ◽  
Vol 61 (1-2) ◽  
pp. 89-97
Author(s):  
Valentina Milanovic ◽  
Aleksandar Nitovski ◽  
Zoran Kulisic ◽  
Milorad Mirilovic ◽  
Boban Popovic ◽  
...  
Keyword(s):  
Liver Fluke ◽  
Fasciola Hepatica ◽  
The Other ◽  
Infected Cattle ◽  
Significant Difference ◽  
The One

In the period from January 2001 to December 2005, a total of 6,904 slaughtered cattle originating from the territory of the region of Jablanica were examined at the Mesokombinat AD abattoir. The Trematoda Fasciola hepatica was found in 429 cattle (6.21%). A total of 2,150 kg livers were condemned due to the presence of the liver fluke. A comparison of cattle with bovine fasciolosis according to the years yielded a very significant difference (p<0.01) between the year 2003 (10.02) and the year 2002 (9.97), on the one side, in comparison with the years 2001 (5.14), 2004 (3.37), and 2005 (5.08), on the other side. A significant difference (p<0.05) was also established in the year 2004 (3.37) in comparison with the years 2001 (5.14) and 2005 (5.08). After analyzing the significance of the differences between the infected cattle according to the seasons, a very significant difference (p<0.01) was established between the summer (7.23) and the winter (4.74) periods. A significant difference (p<0.05) was also established between the autumn (6.49) and the winter periods. The amount of precipitation was directly proportionate to the percentage of cattle infected with fasciolosis.

scholarly journals Differences in the compatibility of infection between the liver flukes Fascioloides magna and Fasciola hepatica in a Colombian population of the snail Galba sp.

2014 ◽  
Vol 89 (6) ◽  
pp. 720-726 ◽  
Author(s):  
G. Dreyfuss ◽  
A.C. Correa ◽  
F.F. Djuikwo-Teukeng ◽  
A. Novobilský ◽  
J. Höglund ◽  
...  
Keyword(s):  
Czech Republic ◽  
Larval Development ◽  
Fasciola Hepatica ◽  
Intermediate Hosts ◽  
The Czech Republic ◽  
Galba Truncatula ◽  
Fascioloides Magna ◽  
Post Exposure ◽  
Experimental Infections ◽  
Liver Flukes

AbstractExperimental infections of Galba sp. (origin, Colombia) with allopatric isolates of Fasciola hepatica from France or Fascioloides magna from the Czech Republic were carried out during five successive snail generations to determine if this lymnaeid might sustain complete larval development of either parasite. In snails exposed to F. hepatica, 7 of 400 snails harboured several rediae and only two snails contained a small number of free cercariae on day 50 post-exposure. In contrast, the intensity of F. magna infection in Galba sp. progressively increased from the F1 to F5 generations. Spontaneous cercarial shedding of F. magna occurred in 7 of 100 Galba sp. belonging to the F5 generation and the number of shed cercariae did not differ significantly from that noted in control Galba truncatula of French origin. Galba sp. from Colombia can be added to the list of potential intermediate hosts for F. magna.

scholarly journals Life History of Lymnaea columella (Say) and its Experimental Infection with Fasciola hepatica (L.)

1969 ◽  
Vol 54 ◽  
pp. 297-305
Author(s):  
Delfín De León-Dancel
Keyword(s):  
Puerto Rico ◽  
Life History ◽  
Mortality Rate ◽  
Gall Bladder ◽  
Fasciola Hepatica ◽  
Early Death ◽  
Variable Number ◽  
Infected Cattle ◽  
Highly Sensitive ◽  
History Of

The life history of Lymnaea columella was studied under laboratory conditions at Río Piedras, Puerto Rico. The snail matured in 21 to 23 days after hatching, when shell length was 5 to 6 mm. A culture box 27 X 21 X 11 cm. provided adequate space for a colony of 20 adult specimens. A mature snail raised individually produced an average of 20 eggs daily. The incubation period of the eggs at 26° to 28° C. varied from 10 to 13 days with 98 to 100 percent hatchability. Both eggs and adult snails were highly sensitive to desiccation; not so young snails. To test the behavior of L. columella under stress of infection with Fasciola hepatica, adult specimens were exposed to a variable number of miracidia. These were obtained by cultivation of eggs from the gall-bladder of infected cattle. The miracidia hatched in 10 to 13 days at 26° to 28° C. and did not live more than 3 1/2 hours. Snails receiving 2 to 4 miracidia tolerated the infection well with low mortality but died within 2 to 6 days after cercariae started emerging. Specimens receiving four to six miracidia were able to survive but the mortality rate was high. Inocula of 10 to 16 miracidia caused early death of the snail. The cercariae, released from the snail in 57 to 60 days after infection encysted within 15 to 20 minutes to become metacercariae. Mice tolerated infection with one metacercaria; rats, with five metacercariae. Eggs first were observed in feces at 31 and 51 days post-exposure in mice and rats respectively.

Sign in / Sign up

Export Citation Format

Share Document