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Detection and Isolation of Campylobacter spp. from Raw Meat
Published on: February 23, 2024
The paternal effect of Campylobacter jejuni colonization in ceca in broilers
X Li1, C L Swaggerty, M H Kogut
1Department of Poultry Science, Texas A&M University, College Station 77843, USA.
Poultry Science
|August 30, 2008
Summary
Host genetics influence broiler resistance to Campylobacter jejuni colonization. Line A broilers showed significantly lower C. jejuni colonization than line B and cross C, suggesting a paternal genetic effect on resistance.
Area of Science:
- Poultry Science
- Microbiology
- Genetics
Background:
- Campylobacter jejuni is a leading cause of bacterial gastroenteritis globally.
- Chickens serve as a primary reservoir for C. jejuni, posing a food safety concern.
- The genetic basis for broiler susceptibility to C. jejuni colonization remains largely uncharacterized.
Purpose of the Study:
- To investigate the role of host genetics in broiler resistance and susceptibility to C. jejuni colonization.
- To determine if genetic factors influence the level of C. jejuni colonization in broilers.
Main Methods:
- Day-old broilers from two parental lines (A and B) and their reciprocal crosses (C and D) were orally inoculated with C. jejuni.
- C. jejuni colonization was quantified by culturing cloacal swabs and cecal contents at multiple time points post-inoculation (dpi).
- Statistical analysis was performed to compare bacterial counts between different genetic lines and crosses.
Main Results:
- Line A broilers exhibited significantly lower C. jejuni counts in cecal contents compared to line B and cross D at 7 and 14 dpi.
- Cross D (A male x B female) showed significantly lower C. jejuni colonization than cross C (A female x B male).
- A significant positive correlation was observed between C. jejuni levels in cloacal swabs and cecal contents.
Conclusions:
- Host genetics significantly impact C. jejuni colonization levels in broilers.
- A paternal genetic effect appears to play a crucial role in broiler resistance to C. jejuni.
- These findings suggest potential for genetic selection to enhance broiler resistance against C. jejuni.
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