Incidence and Haemato-biochemical profile of prolonged oestrus crossbred cows

Abstract

A total of 800 breedable cows maintained at Instructional Livestock Farm, C.V.Sc., Khanapara and at different private farms around the college campus were taken to record the incidence of prolonged oestrus, which was recorded to be16.75 per cent. Out of which 20 apparently healthy prolonged oestrus and 6 normal duration of oestrus cow were taken to study the blood biochemical and haematological parameters. The behavioural signs and the physical signs of oestrus were also studied. These signs were subside on day 5th except swelling of vulva (10.00 %). The occurrence of relaxed and open cervix, good to very good uterine tone, palpable Graafian follicle, tense and soft follicular wall in prolonged oestrus cows were observed even up to the 3rd day of oestrus. The level of serum inorganic phosphorus was significantly (P