Latest News


Assessing keel bone damage in laying hens by palpation: effects of assessor experience on accuracy, inter-rater agreement and intra-rater consistency

In a recent study published in Poultry Science, researchers from Belgium, the Netherlands, and the UK describe that experience improves… read more »


A standardized method to assess radiographs of keel fractures

A new study investigating the reliability of a scoring system for keel bone fractures has been published in Frontiers of… read more »



The 2nd Keel Bone Damage (kbd) Training School will be held on June 14th at the Experimental Poultry Centre in Geel,… read more »

Radiographic examination detects differences in KBD between layer lines and housing systems

A new study using radiography to examine the keel bone throughout the laying period has recently been published in PLOS… read more »

Keel bone fractures in broiler breeders too!

New research from the University of Bern, Switzerland led by Dr. Sabine Gebhardt and published in Applied Animal Behaviour Science identified for the first time that keel bone fractures occur in broiler breeders as well.  The study’s principal focus was to identify appropriate perching structures for hens through the provision of aerial perches and aviary tiers. Using two distinct genetic lines – Sasso and the smaller, Ross 308 – within a commercial operation, Dr. Gebhardt found that in pens provided perching structures, 10% and 50% or more of Sasso and Ross 308 hens, respectively, had moderately or severely deformed keels by 46 weeks of age. Fractures were seen in Control pens as well where at least 10% of hens had fractures.  Although rates are considerably less than that seen in laying hens, the manuscript confirms that the problem of keel bone fractures extends to broiler breeders as well.

The research was funded by the Federal Safety and Veterinary Office of Switzerland (Project Number: 2.13.10) and is available at: