Cargill has developed a new service, called Reveal Layers, which is now available for UK producers, which uses near-infra-red (NIR) technology to monitor the body condition of laying hens.
“Laying hen body condition can be linked to liver function and long-term egg production,” said Cargill UK poultry technology specialist Luke Barnard. “By measuring body fat, we can identify deviations from the optimum and adjust diet composition to support egg production and improve laying persistency.”
The technique involves measuring the fat pad in a random sample of 50 to 100 hens. Results are logged directly via Bluetooth to a mobile device. Monitoring is best carried out routinely and a log kept of the flock’s body condition over time. However, ad hoc monitoring can be carried out where appropriate.
“It is believed that over-developed fat pads in laying hens are problematic for long-term egg production and optimal liver function,” said Barnard. “Keeping the bird in a good condition is crucial for the longevity of lay.”
The monitoring data provides producers and nutritionists with immediate access to body composition assessments of their hens. These results are assessed and benchmarked against the optimum body score range for their age.
Cargill has collated a large database to calibrate body condition against productivity relative to hen age, breed and colour. It has used this and in-depth knowledge to develop accurate algorithms. This information allows for corrective measures to be taken when flock data deviates from expectation.
“We can use these benchmarks and the flock’s data to suggest nutritional changes and management changes to support future performance,” said Barnard. “These decisions are in real-time and help to support the flock’s long-term performance. Reveal Layers gives us a new window into the bird’s condition and potential performance and provides insights that were not previously obtainable.”
Laying hens with the optimal body condition score have been found to have an extended production cycle. As hens approach the end of their laying period, egg production becomes less efficient, and margins are eroded making the unit less viable.
“By optimising body condition, the hen’s productive period can be extended and egg production increased, making older flocks viable. An assessment of body condition can also pinpoint any issues during the bird’s productive life.”