Factors influencing on prevalence of Cryptosporidium infection in south Indian dairy calves
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Date
2013-07
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Abstract
The objectives of the present study were to
report the influence of factors like age, sex, breed, dung
consistency and rearing system on prevalence of Cryptosporidium
spp. in south Indian cattle. Two-step nested PCR
was employed for detection of Cryptosporidium infection
in dairy calves of south Indian states viz., Andhra Pradesh,
Karnataka, Kerala, Tamil Nadu and union territory i.e.,
Puducherry. A total of 459 dung samples from the calves
were subjected to nested PCR, 182 were found positive
with prevalence percent of 39.65. Age wise comparison
showed a high prevalence of Cryptosporidium in the age
group of one month old calves. This concludes that the
cryptosporidiosis is highly age dependent with young
calves showed the highest prevalence. Depending on the
group had consistency of dung, the highest prevalence of
Cryptosporidium was observed in semi-solid dung, followed
by formed and the diarrhoeic group animals. Female
calves showed slightly higher prevalence rate than male
animals. Cow calves had an overall prevalence percent of
40.75 and the infection rate in buffalo calves was 36.28 %.
In relation to rearing system, individual animals had
42.18 % and farm animals showed 38.46 % of Cryptosporidium
infection. In conclusion, the prevalence of
Cryptosporidium in dairy calves should be correlated with
the factors like age, sex, breed, dung consistency and
rearing system of the animal to arrive at a reliable epidemiological
data on bovine cryptosporidiosis.
Description
TNV_JPD_2013_37(2)168-172
Keywords
Veterinary Science