Microbial Food Safety Risk to Humans Associated with Poultry Feed: The Role of Irradiation

Table 1

Microbiological counts (log₁₀ cfu/g) of compounded feed before and after gamma irradiation.

Parameters determined	Permissible levels of contamination	Radiation Dose (KGy)
		0	5	10	15	20
TVC	≤6. 48	5.98	NDT	NDT	NDT	NDT
CC	≤ 4.0	4.76	NDT	NDT	NDT	NDT
STC	≤ 4.0	2.89	NDT	NDT	NDT	NDT
SC	absence per gram	NDT	NDT	NDT	NDT	NDT
YMC	≤5. 3	4.57	NDT	NDT	NDT	NDT

Values are means of two replicate determinations, TVC: total viable count, CC: coliform count, STC: Staphylococcus count, SC: Salmonella count, YMC: yeast and mold count, and NDT: not detected
Permissible levels of contamination [17].