Evaluation of Negative Energy Balance in Dairy Cows in Qom Province, and its Relationship with Periparturient Diseases

Abstract

Objective: The aim of this study was to evaluate the correlation between negative energy balance (NEB) and periparturient diseases and to introduce blood BHBA and glucose values as instruments to detect cows with NEB to prevent its harmful effects on immunity and the incidence of periparturient. Material and Methods: 207 fresh Holstein cows were being investigated over the 2-4 weeks after parturition. BHBA and glucose concentrations were determined, using portable strip test by Optimum Xceed® (Ireland MediSense®Optium), data were evaluated by statistical programs and the results were recorded. Results: The incidence of NEB in central Iran (with threshold of 1 mmol/l for serum BHBA values) was 16.3 % that is in range of other reports. Although the incidence of preparturient diseases other than RP was lower than other studies. Serum BHBA values in cows with periparturient diseases were significantly higher than cows with no periparturient diseases. There was no significant correlation between milk production and the values of serum BHBA (P<0/05). Days open and parity were significantly higher in cows with NEB in comparison with cows with no NEB. There was no significant correlation between serum glucose values and periparturient diseases, parity, milk production, and days open (p>0/05)