| dc.description.abstract | The study was conducted to investigate the prevalence of diseases in dairy cows in
relation with seasons and effects of anthelmintics treatment on milk yield in parturated
cows. It was carried out for a period of one year starting from July, 2016 to June, 2017.
A total 3000 clinical cases were recorded on the basis of owner’s complain, general
examination, clinical signs, laboratory test and management system. According to study
the highest prevalence was recorded by parasitic diseases 32.9% followed by viral
diseases 18.84%, bacterial diseases 15.77%, reproductive disorder 14.7%, general
clinical disorders 14.53%, other clinical disorder 2.84% and surgical affection 0.43%
respectively. Among bacterial, viral and reproductive diseases the highest prevalence
were found in mastitis 9.16%, foot and mouth disease 14.66% and repeat breeding 5.7%
respectively. The most common surgical disorder was upward patellar fixation 0.43%.
On the basis of season it was found that prevalence of diseases were significantly (P
<0.01) higher in summer season 51.03% followed by winter season 25.23% and
comparatively lower in rainy season 23.73%. Among the total population, 48 parturated
mixed breed dairy cows were selected to determine the effects of anthelmintics treatment
on milk yield. In treated lactation, treatment with combined Ivermectin and cloursulon
(A-Mectin plus®) @ 1ml/50kg body weight subcutaneously was significantly (P<0.05)
increase the average milk yield 25% on 90 days than nitroxynil (Nitronex®) and
combined triclabendazole and levamisole (Trilev®). Furthermore it has been found that
parasitic infestation, mastitis, foot and mouth disease and repeat breeding commonly
affect dairy cows and anthelmintic has positive impact on milk yield of parturated cows. | en_US |
