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http://dx.doi.org/10.5536/KJPS.2011.38.3.181

Monitoring of Major Viral Pathogen Contamination in New and Reused Broiler Farm Litter  

Choi, Kang-Seuk (Avian Disease Division, National Veterinary Research and Quarantine Service)
Jeon, Woo-Jin (Avian Disease Division, National Veterinary Research and Quarantine Service)
Lee, Eun-Kyoung (Avian Disease Division, National Veterinary Research and Quarantine Service)
Kwon, Jun-Hun (Avian Disease Division, National Veterinary Research and Quarantine Service)
Lee, Jin-Hwa (College of Veterinary Medicine, Kangwon National University)
Sung, Haan-Woo (College of Veterinary Medicine, Kangwon National University)
Publication Information
Korean Journal of Poultry Science / v.38, no.3, 2011 , pp. 181-189 More about this Journal
Abstract
A 5-month (May to November in 2009) monitoring program for five viral pathogens in litter, such as avian influenza virus A (AIV), infectious bronchitis virus (IBV), infectious bursal disease virus (IBDV), fowl adenovirus (FAdV), and chicken infectious anemia virus (CIAV) was conducted in 62 flocks at 31 broiler farms (two flocks in each farm) in Korea in 2009. Viral pathogens were examined twice (before and at the end of the rearing period) at 31 broiler farms, and included fresh litter (n = 16) and recycled litter (n = 15) farms. Thirty-seven viruses (14 IBVs, 2 IBDVs, 9 FAdVs, and 12 CIAVs) were isolated from 75% (12/16) and 73% (11/15) of fresh litter and reused litter farms during the period, respectively, indicating no difference in viral contamination rate between farms using new and reused litter. Of these isolates, three (two CIAVs and one IBDV) were isolated from recycled litter samples collected before the rearing period at three broiler farms, whereas the others (n=34) were isolated from fresh and recycled litter samples collected at the end of the rearing period. When the performances, involving viability, body weight, and feed conversion ratio, were compared, no significant differences were found between farms using fresh and recycled litter during the period.
Keywords
broiler; litter; production index; viral pathogen;
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