• Title/Summary/Keyword: breeding.

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Plant Breeding in the 21st Century

  • Phillips, Ronald L.
    • Korean Journal of Breeding Science
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    • v.41 no.3
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    • pp.187-193
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    • 2009
  • Congratulations to the Korean Society of Breeding Science on the occasion of the $40^{th}$ anniversary. Such scientific societies serve an important role in disseminating scientific information, encouraging world class research, and integrating related disciplines. Plant breeding is a solution-driven science to meet ever-increasing needs with the ultimate application in mind throughout the process. Plant breeding will continue to involve both the lab and field even as more molecular technologies are applied to the improvement of plants and animals. Today and into the future, genetics and genomics will play major roles. This keynote talk first presents plant breeding in the context of the need to meet future food supplies, then reviews some of the emerging and important technologies, documents some of the traits improved through the new technologies, and finally adds some philosophical points with special emphasis on the younger scientist.

Aspergillosis in breeding ducks

  • Mi Na Han;Mun Hui Chae;Seong Tae Han
    • Korean Journal of Veterinary Service
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    • v.46 no.3
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    • pp.203-210
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    • 2023
  • Breeding ducks are susceptible to fungal infections due to being bred in confined spaces for long periods. The objective of this study was to show the real state of the clinical fungal contamination of 22 duck breeding farms in Chungcheongbuk-do, South Korea. Out of the 430 carcasses obtained from the 22 duck breeding farms, 80 were diagnosed with invasive pulmonary aspergillosis (IPA). Aspergillus spp. were detected as the causative agents, including 26 cases of A. fumigatus, 35 cases of A. flavus, and 19 cases of A. terreus. The clinical lesions in the breeding ducks had circumscribed cream-and-yellow-colored plaques and/or white-to-greenish mycelium. Septate hyphae with parallel walls and dichotomous branching were observed in the histopathological lesions. AGMAg ELISA was performed to determine the overall positive rate of Aspergillus spp. in duck breeding farms. These results showed a positive rate of 58.97% for Aspergillus spp. Additionally, the positive rate increased with the age of the host.