| dc.description.abstract | Among all animals present on a dairy farm, the higher morbidity and mortality rates
generally occurs in baby calves. A one year (from April, 2017 to March, 2018) cross
sectional study was conducted to know the present scenario of prevalence and risk factors
of calf diseases in Dinajpur District. A total number of 2805 clinical cases were recorded
and analyzed during all the study period from three different Veterinary hospitals of three
upazillas namely Dinajpur Sadar upazilla (n=1320), Birol upazilla (n=833) and Birgong
upazilla (n=652). The diagnoses of diseases were made based on epidemiological data,
physical, clinical, microscopic examination and other laboratory techniques of affected
animals. Influence of various risk factors such as breed (Local and Cross), age (≤ 4 weeks
and >4 weeks), sex (Male and Female) and season (summer, rainy and winter) on the
occurrence of calf disease was also studied. The overall prevalence of diseases in all three
upazilas were diarrhoea (21.82%), anorexia (10.52%), fever (8.73%), naval ill (7.80%),
malnutrition (8.20%), indigestion (5.35%), traumatic injury (3.92%), dysentery (3.92%),
myiasis (4.10%), pneumonia (4.10%), alopecia (2.96%), atresia ani (3.06%), hernia
(2.21%), constipation (3.28%), abscess (1.89%), conjunctivitis (1.60%), lameness
(2.28%), FMD (.8%) ,blot (0.5%) and pica (2.88%). The cases of diarrhoea was higher
(21.82%) than that of other diseases. The occurrence of diseases was highly significant
(p<0.01) in crossbred calves (58.50%) than that of local breed (41.49%). Cases of
diseases were higher in male calves (53.37%) than that of female calves (46.63%) but the
variation was insignificant (p>0.05). The diseases were found significantly (p<0.05)
higher in ≤ 4 weeks (56.58%) group. The occurrence of diseases in calves was
significantly (p<0.05) higher in rainy season (43.12%) and lowest in winter season
(24.50%) The data on the influence of breed, age and season on the disease occurrence in
calves could provide valuable baseline information for effective disease control and
prevention strategies. | en_US |
