What do biosecurity assessments and oral fluids reveal on Hong Kong pig farms?
Across 18 Hong Kong pig farms, biosecurity scores were modest and several major swine viruses were detected, but the cross-sectional design does not establish causality.
Concise summaries of published swine health and production research, organized for quick discovery.
Across 18 Hong Kong pig farms, biosecurity scores were modest and several major swine viruses were detected, but the cross-sectional design does not establish causality.
In an experimental trial involving ten SPF miniature pigs, a PCV2d virus-like-particle vaccine markedly reduced viral detection after challenge, but farm effectiveness remains unproven.
Landrace pig T-lymphoblasts were more permissive to PCV2 than Piétrain cells, with endolysosomal trafficking differences that may contribute to cellular susceptibility.
Across three commercial farms, a bivalent PCV2d–M. hyopneumoniae vaccine improved ADG and several health indicators compared with unvaccinated controls.
PPV2 was common in lungs from Colombian pigs, but coinfections predominated and direct localization in lesions was uncommon, so detection did not establish causation.