The present study was intended to determine the concentrations of phenolic compounds in surface waters of Godavari canal by molecular spectrophotometry. Samples were collected from fifteen sampling stations using grab sampling method for a period of four months (from November to February) at 10 day intervals. Total phenols in water samples were determined using molecular spectrophotometry after distillation, complexation with 4-aminoantipyrine and extraction into chloroform. The concentration of phenolic compounds was reported in the range of 80-179 mg/lit, well within the limits considering the earlier reports in the literature and the standards prescribed by Central Pollution Control Board (CPCB) of India. Relatively higher levels of phenolic compounds (100-179 mg/lit) were reported in nine out of fifteen sampling locations. Statistical analysis showed that there is a significant difference in the concentrations of phenolic compounds in the month of November with respect to January (at p = 0.05) and November with respect to February (at p < 0.05).

They can cause dehydration very often at the origin of the death of the animal in 6 to 12 hours (Rovary and Sattler, 2006). A quick intervention of the veterinarian is vital for the survival of the animal. The risk of diarrhea is highest during the first week after calving (4th-10th day) (Lorenz, 2007). The incidence of diarrhea in calves of less than 30 days varies from 15 to 20% and the risk of mortality is 1.5 to 8% (Koch and Kaske, 2008). The etiologic agents are numerous and differ depending on the age of the animal (Castro