Abstract

EVALUATION OF THE EFFICACY OF CLEANING AND DISINFECTION IN BROILER FARMS BETWEEN REST PERIODS IN KHARTOUM STATE, SUDAN.

Elniema A. Mustafa* and Haytham Adam Abdullkaream Babeker

ABSTRACT

This study was carried out during the period from November 2015 to November 2017 in Bahri locality, Sudan. The objectives of the study were to determine the efficacy of cleaning and disinfection of broiler farms between production cycles and evaluating the present biosecurity measures in poultry houses during rest period. A structured and standardized checklist containing the major aspects of Good Hygienic Practices (GHPs) and related factors was designed and conducted. In addition, a total of 60 samples were collected from 4 different broiler farms (each 15) which comprised 5 swab samples from suspended different ground surface areas after disinfection and before new litter were applied, 5 samples from the newly introduced litter and 5 water samples. Samples were collected before introducing new flock using systemic random sample technique. All samples were, serially diluted, spread plated into agar plates, incubated for 48 hr, at 37°C and enumerated. Total bacterial count (TBC) was investigated for each sample. Data was coded and analyzed using SPSS program. The study disclosed that all farms (100%) didn't apply appropriate cleaning and disinfection practices or water quality testing or saw dust (litter) fumigation. Whereas, all farms (100%) didn't perform bacteriological testing to verify the efficacy of cleaning and disinfection, 75% of them didn't apply longer period between two production cycles. The study also revealed a significant difference in the mean of bacterial count in different samples (water, litter And swab) with p<0.05 (0.007). Whereas, there was a significant difference in total bacterial count (TBC) between swab, water, swab and litter (p =0.007 and 0.045), respectively, the difference in total coliform count (TCC) between samples from different farms p>0.05(0.199) was insignificant. It could be concluded that all farms (100%) didn't apply appropriate GHPs between production cycles and that the swab sample method was considered as main source of bacterial contamination in broiler farms between rest periods.

Keywords: Biosecurity, Broiler Farm, rest period, cleaning and disinfection.