TY - JOUR
T1 - Infections with gastrointestinal nematodes, Fasciola and Paramphistomum in cattle in Cambodia and their association with morbidity parameters
AU - Dorny, P
AU - Stoliaroff, V
AU - Charlier, J
AU - Meas, S
AU - Sorn, S
AU - Chea, B
AU - Holl, D
AU - Van Aken, D
AU - Vercruysse, J
N1 - NPP; ITG-A1A; ANIMAL; U-VHELM; JIF; DOI; PDF; Abstract; DSPACE
PY - 2011
Y1 - 2011
N2 - Prevalence and seasonal variations of helminth infections and their association with morbidity parameters were studied in traditionally reared Cambodian cattle. Four villages in two provinces of West Cambodia were visited on monthly intervals over a period of 11 months, during which 2391 animals were faecal and blood sampled for parasitological and haematological examinations. The body condition score (BCS), faecal consistency (diarrhoea score, DS), colour of the ocular conjunctivae (FAMACHA((c))) and packed cell volume were determined for each individual animal. The overall proportion of samples that was positive for gastrointestinal nematodes was 52%, 44% and 37% in calves (from 1 to 6 months), young animals (6 to 24 months) and adults (over 24 months), respectively, while geometric mean faecal egg counts (FECs) for each of these age categories were 125, 66 and 15 eggs per gram, respectively. Six genera of strongyles were found in the faecal cultures, i.e. in descending order of occurrence, Cooperia, Oesophagostomum, Haemonchus, Trichostrongylus, Mecistocirrus and Bunostomum. The prevalences of Fasciola and Paramphistomum, estimated by coprological examination, varied between 5-20% and 45-95%, respectively. Logistic mixed models were used to investigate associations of morbidity markers with the presence of parasite infection. A low BCS was associated with gastrointestinal nematode and liver fluke infections, and soft faecal consistency with Paramphistomum infections. However, other factors such as nutritional deficiencies and intercurrent diseases are likely to enhance the effects of parasites and should therefore be considered when using these morbidity parameters as indicators of parasitism.
AB - Prevalence and seasonal variations of helminth infections and their association with morbidity parameters were studied in traditionally reared Cambodian cattle. Four villages in two provinces of West Cambodia were visited on monthly intervals over a period of 11 months, during which 2391 animals were faecal and blood sampled for parasitological and haematological examinations. The body condition score (BCS), faecal consistency (diarrhoea score, DS), colour of the ocular conjunctivae (FAMACHA((c))) and packed cell volume were determined for each individual animal. The overall proportion of samples that was positive for gastrointestinal nematodes was 52%, 44% and 37% in calves (from 1 to 6 months), young animals (6 to 24 months) and adults (over 24 months), respectively, while geometric mean faecal egg counts (FECs) for each of these age categories were 125, 66 and 15 eggs per gram, respectively. Six genera of strongyles were found in the faecal cultures, i.e. in descending order of occurrence, Cooperia, Oesophagostomum, Haemonchus, Trichostrongylus, Mecistocirrus and Bunostomum. The prevalences of Fasciola and Paramphistomum, estimated by coprological examination, varied between 5-20% and 45-95%, respectively. Logistic mixed models were used to investigate associations of morbidity markers with the presence of parasite infection. A low BCS was associated with gastrointestinal nematode and liver fluke infections, and soft faecal consistency with Paramphistomum infections. However, other factors such as nutritional deficiencies and intercurrent diseases are likely to enhance the effects of parasites and should therefore be considered when using these morbidity parameters as indicators of parasitism.
KW - B780-tropical-medicine
KW - Animal diseases
KW - Helminthic diseases
KW - Gastrointestinal diseases
KW - Fasciola
KW - Paramphistomiasis
KW - Paramphistomum
KW - Nematodes
KW - Prevalence
KW - Cattle
KW - Morbidity
KW - Clinical examination
KW - Ocular
KW - Feces
KW - Diarrhea
KW - Associations
KW - Seasonality
KW - Rainfall
KW - Cambodia
KW - Asia-Southeast
U2 - 10.1016/j.vetpar.2010.10.023
DO - 10.1016/j.vetpar.2010.10.023
M3 - A1: Web of Science-article
C2 - 21071148
SN - 0304-4017
VL - 175
SP - 293
EP - 299
JO - Veterinary Parasitology
JF - Veterinary Parasitology
IS - 3-4
ER -