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(November 30, 2022) Webinar: Molecular Mechanisms Behind Lameness in Meat Chickens – Alterations to Bone Homeostasis and Bacterial Immune Responses
Key Points:

-Bone health in meat-type birds is essential and consequential for poultry welfare and production

-Bacterial infections of the long bones that lead to lameness in meat-type birds derive from dysregulation of molecular pathways at the cellular level

-Impaired bone health results in a systemic, pro-inflammatory state that is detectable via non-invasive measures

-Future work must address the rise of subclinical bone infections and the need for improved means of detecting, describing, and selecting for bone health in meat-type birds

Overview:

Today, poultry meat is at the top of consumers’ lists as an affordable, nutritious, and healthy protein source. The modern meat-type chicken’s highly efficient growth rate and outstanding meat yield account for much of the poultry industry’s success, but many of today’s consumers care more than the price tag. As concerns for animal welfare, health, and sustainability grow along with the global population’s craving for animal protein, effectively addressing lameness incidence in meat birds is of key interest. A major obstacle in tackling lameness is the lack of understanding of the mechanistic underpinnings involved in a common cause of lameness, femur head necrosis (FHN), also called bacterial chondronecrosis with osteomyelitis (BCO).

The work of Dr. Alison Ramer’s lab has been to identify mechanisms by which bacteria induce the symptoms of FHN/BCO, bone attrition, inflammation, and infection through both in vivo and in vitro studies. Their quest to better define and diagnose this consequential skeletal disease also means seeking new means of measuring and visualizing bone health in meat-type birds to feed the future healthily and sustainably.

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