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Abstract
A total of one hundred swab samples of fresh broiler carcasses were collected from private shops at Alexandria province to be examined bacteriologically.
This study was planned out to determine whether any relationship exists between Mesophilic Aerobic bacteria and the human enteropathogens as Salmonellae and Campylobacter through determination of:-
a- Total Aerobic Bacterial Count.
b- Isolation and identification of Salmonellae.
c- Isolation and identification of Campylobacter.
The obtained results revealed the following:
1- Total Aerobic bacterial count:
The incidence of Mesophilic Aerobic bacteria was 100% in fresh broiler carcasses samples. The total Aerobic bacterial count ranged from 9.5X104 to 1.1X109 with a mean value of 1.1X107cfu/cm2.
2- Detection and Isolation of Salmonella:
The incidence of Salmonella in the examined fresh broiler carcasses was found as 32%. Salmonella Enteritidis, Salmonella Typhi, Salmonella Paratyphi, Salmonella Typhimurium, Salmonella Gallinarum and Salmonella Pullorum were isolated at an incidence of 11, 2, 1, 5, 9 and 4% respectively.
3- Detection and Isolation of Campylobacter:
The incidence of Campylobacter in the examined fresh broiler carcasses was found as 86%. Campylobacter species were isolated at an incidence of Campylobacter jejuni was 73% and Campylobacter coli was 13%.
4- Relationship between total Aerobic bacterial count, Salmonella and Campylobacter on broiler carcasses.
a- Relation between total Aerobic bacterial count and Salmonella on broiler carcasses:
The results indicate that there is no significant difference in the total Aerobic bacterial count between Salmonella positive samples and Salmonella negative samples which mean that there is not significant relationship between Mesophilic Aerobic bacteria and Salmonella on broiler carcasses.
b- Relation between total Aerobic bacterial count and Campylobacter on broiler carcasses:
The results indicate that there is no significant difference in the total Aerobic bacterial count between Campylobacter positive samples and Campylobacter negative samples which mean that there is no significant relationship between Mesophilic Aerobic bacteria and Campylobacter on broiler carcasses.
c- Relation between Salmonella and Campylobacter on broiler carcasses:
The relationship between incidence of Campylobacter species and incidence of Salmonella species on broiler carcasses is weak and non-significant relationship.
from the previous results there was no significant differences in total Aerobic bacterial count between Salmonella positive and Salmonella negative carcasses or between Campylobacter positive and Campylobacter negative carcasses. So there was no indication that Mesophilic Aerobic bacteria on carcasses could predict incidence of Salmonella or Campylobacter species on the examined fresh broiler carcasses samples.
Also there was no indication that total Aerobic bacterial count or Campylobacter prevalence on carcasses could be used to predict Salmonella incidence.
Finally there is no interrelationships were demonstrated between Mesophilic Aerobic bacteria, Salmonellae, and Campylobacter on broiler carcasses.