Vol. 11, Special Issue 7 (2022)

Author(s):
DJ Rishitha, K Bhargavi, GV Bhaskar Reddy and K Lakshmi Kavitha

Abstract:
This study was aimed to investigate the efficacy of four commonly used disinfecting agents at different concentrations (sodium hypochlorite at 4, 5 and 6%, calcium hypochlorite at 5 and 10%, benzalkonium chloride 80 at 2.5, 0.25 and 0.05% and carbolic acid at 10, 2 and 1%) against the microbial load from different areas of operations in poultry slaughterhouses like flaying, evisceration and final discharge areas. The samples were collected at diverse vicinities in poultry slaughter houses in and around Tirupati, Andhra Pradesh, India. Well-diffusion technique was used for determining the efficacy of sodium hypochlorite, calcium hypochlorite, benzalkonium chloride and carbolic acid and was tested at different concentrations. The disinfectants were not effective in their given recommended concentrations. The most effective disinfectant is carbolic acid at 10% concentration and the least is sodium hypochlorite even at the highest recommended concentration of 6% v/v. Calcium hypochlorite and Benzalkonium chloride inhibited the growth of microbes with less extent. Based on the results, it can be concluded that, the test disinfectants can be ordered from the most effective to the least effective ones are as follows: carbolic acid at 10% concentration, calcium hypochlorite at 10% concentration, Benzalkonium chloride 80 at 2.5%, and Sodium hypochlorite at 6% concentration.