Detection and Study of Chicken Anemia Virus in Broiler Breeder Chickens
Author Information
Author(s): Hailemariam Zerihun, Omar Abdul Rahman, Hair-Bejo Mohd, Giap Tan Ching
Primary Institution: Haramaya University, Ethiopia and Universiti Putra Malaysia, Malaysia
Hypothesis
The study aimed to detect chicken anemia virus (CAV) from commercial broiler breeder farms and characterize CAV positive samples based on genetic analysis.
Conclusion
CAV is widespread in commercial broiler breeder farms in Malaysia, with significant genetic variability among local isolates.
Supporting Evidence
- 75% of spleen samples tested positive for CAV DNA.
- 96.15% of blood samples were positive for antibodies against CAV.
- CAV DNA was detected in embryos from broiler breeder chickens.
- Isolates showed genetic variability based on amino acid substitutions.
- Two distinct clusters of CAV isolates were identified.
- All CAV isolates demonstrated negative selection based on omega values.
Takeaway
The study found that a virus affecting chickens is common in farms, and it can change a little bit over time.
Methodology
The study involved collecting tissue and blood samples from 60 broiler breeder hens and testing for CAV DNA using nested PCR and ELISA.
Limitations
The study was limited to three states in Malaysia and did not include vaccinated farms.
Participant Demographics
Commercial broiler breeder hens aged 25–35 weeks from unvaccinated farms.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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