Oral and Poster Abstracts

and acute angiocolitis also hemorrhagic-necrotic paths, a previous
aggressions expressed by chronic angiocolitis and hepatitis. These
modifications are characteristic for the traumatic hepatitis produced
by Cysticercus tenuicollis (cysticercosa hepatitis) during the
hepatical migration, extremely aggressive, metacestod identified
along with other parasitical structures disposed in the hepatical
tissue.Multiple and combineted parasitic aggression against body of
Black Goat species (Rupicapra rupicapra) was complex, and for a
long time, determining a local reactivity that was finally outnumber
by their action on parasitic species.
Key words: black goat, parasitic aggression, reactivity
1195 Comparison of Oral Drench vs. Top-feeding as Anthelmintic
Treatment in Fattening Bulls
P. Houffschmitt 1 , Y. Lagalisse 1 , C. Mage 2
1 Intervet Schering-Plough, Livestock Business Unit, Angers, France
2 Animal Health Consultant, Private Veterinary Practice, Pierre-
Buffiere, France
Objectives: Fenbendazole (FBZ) as a 10% w/v suspension (Panacur)
must be delivered per os. It can be achieved either by oral
administration with a drenching gun or by superficial application on the
feed (also called “top-feeding”). This monocentric randomised and
controlled field study with natural nematode infestation compares the
efficacy of both ways to administer FBZ, through the classical Faecal
Egg Count (FEC) Reduction Test (FECRT).
Methods: Charolais bulls (n=93) aged 7 to 9 months (mean body
weight 166 kg), were faecal sampled on D-10. They had grazed with
their dams and had received no anthelmintic treatment before. Bulls
were housed and randomly allocated to 3 groups on D0, equilibrated
for their D-10 FEC. All were fed daily with concentrate at the neck
yoke. Group A (n=31) and Group B (n=31) were weighed individually
on D0 and received orally 7.5 mg/kg FBZ either with a drenching gun
or by superficial application on the concentrate feed. They were kept in
confinement for several hours to ensure total consumption of the
supplemented feed. Group C (n=31) received no treatment (control
group). All 3 groups were kept in the same building and fed the same
regimen. All animals were faecal sampled on D7. Faecal samples were
analyzed at LDA Limoges (modified Mac Master method, sensitivity
of 15 eggs per gram (EPG)).
Results: Eggs found on D-10 were mainly of gastro-intestinal
nematodes (GIN), 65% of which belonged to Cooperia sp and 35%
Ostertagia sp. A few bulls expelled Eimeria sp cysts (n=19),
Nematodirus sp (n=6) or Trichuris sp eggs (n=15). On D-10, the
difference of nematode FEC between groups was not significant
(p