Gastrointestinal Parasitism In Kedah-Kelantan Calvesincidence, Effect On Growth And Cost- Benefit Of Anthelmintics
A study of the incidence and effects of gastrointestinal tract parasitism on growth rates and two blood parameters of Kedah-Kelantan was carried out in the Beef Unit, Universiti Pertanian Malaysia. The cost effectiveness of two anthelmintics, oxfendazole and ivermectin was also assessed. A tota...
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| Format: | Thesis |
| Language: | English English |
| Published: |
1988
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/12282/1/FPV_1988_6_A.pdf |
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| Summary: | A study of the incidence and effects of gastrointestinal
tract parasitism on growth rates and two blood parameters of
Kedah-Kelantan was carried out in the Beef Unit, Universiti
Pertanian Malaysia. The cost effectiveness of two
anthelmintics, oxfendazole and ivermectin was also assessed.
A total of 75 newborn Kedah-Kelantan calves were allocated
equally into three groups. All the calves grazed with their
dams till one year of age, under an improved extensive
rotational pasture management. Oxfendazole and ivermectin was
administered regularly at the recommended dose rates to the
first and second groups respectively. The third group of
calves remained as untreated controls. All calves were given
an oral coccidiostat. At regular intervals, the calves were weighed and faecal samples were collected for qualitative and
quantitative assessment of helminths and coccidia. Blood
samples were also taken for packed cell volume, plasma protein
and gastrin measurements.
Three species of coccidia, nanely Eimeria bovis (more than
80 percent of the calves) , E. zuernii (more than 60 percent of
the calves) and E. ellipsoidalis (less than 10 percent of the
calves) were identified in the three groups of calves
especially during the first six months despite of regular
coccidiostat therapy. other parasites such as Toxocara
vitulorurn ( found only in 8 percent of the .control calves) and
strongyloides papillosus ( more than 80 percent of all calves)
were found during the first two and three months respectively.
Tapeworm (Moniezia) was present in 44 percent of the ivermectin
treated and control groups, and in 24 percent of the
oxfendazole treated group. The only strongyle recovered fran
faecal culture was Haemonchus placei fourrl in 92 percent of the
control calves from three months of age onwards. |
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