International Egg Commission

Celebrating 50 Years 1964 to 2014

Site Navigaton

 

Section Navigation

Bell - 1999

Environment Enrichment Devices for Caged Laying Hens

Two experiments were conducted to determine the efficacy and possible economic benefits of using environmental enrichment devices (EED) to alter the behavior of two White Leghorn strains in laying cages. The first experiement compared using EEDs with beak-trimmed (BT) and non-beak-trimmed (non-BT) birds; the second experiement compared three different cage densities with and without EEDs. The devices failed to show significant effects within experiements, but when the two experiements were combined, eliminating then non-BT and seven birds per cage treatments, a significant (P=.013) improvement in economic returns was observed. BT resulted in depressed performance in the early stages of production, but subsequent economic results favored the BT treatment. Egg production in the BT birds improved, and they displayed 5.2% lower feed consumption over the entire experiment. Overall profitability of the two treatments was equal, but the BT birds had a $0.13/bird higher flock index than the controls during the last 12 wk of the experiment. Most measures of performance except egg weight and feed consumption were adversely affected by increasing the number of birds per cage. Economic returns favored five and six birds per cage over seven birds per cage.

Download Summary

Stop

This item is only available to IEC members.

Login now

Join the IEC now!


PDF File
PDF File
605.39 KB
17 August 2010

 

To view this file you will need software capable of reading PDF files, such as the free Adobe Reader.