T. Chompoochan et al., PRELIMINARY-STUDY OF NEMATODE INFECTIONS OF CATTLE IN THE 6 PROVINCESOF THAILAND IN THE DRY SEASON, Journal of veterinary medical science, 60(4), 1998, pp. 527-529
Fecal nematode egg counts and serum pepsinogen concentrations of cattl
e were determined in six Provinces of the northern (Chiangrai and Lamp
ang), north-eastern (Khonkaen, Mahasarakham and Nakhonratchasima) and
eastern (Chonburi) parts of Thailand in the dry season. Nematode eggs
were detected in 82% of animals examined. Serum pepsinogen concentrati
ons ranged from 78 to 2,951 (mean 934) mU tyrosine. Animals in Chonbur
i Province had higher mean Values for both egg counts and serum pepsin
ogen concentrations than animals in the other Provinces. Two calves in
Khonkaen and Mahasarakham Provinces were found to be heavily infected
with Strongyloides papillosus, with 10,840 and 9,593 eggs/g feces. Th
e source and route of S. papillosus infections remained unknown.