Assessing Activity and Location of Individual Laying Hens in Large Groups Using Modern Technology

Tracking individual animals within large groups is increasingly possible, offering an exciting opportunity to researchers. Whereas previously only relatively indistinguishable groups of individual animals could be observed and combined into pen level data, we can now focus on individual actors within these large groups and track their activities across time and space with minimal intervention and disturbance. The development is particularly relevant to the poultry industry as, due to a shift away from battery cages, flock sizes are increasingly becoming larger and environments more complex. Many efforts have been made to track individual bird behavior and activity in large groups using a variety of methodologies with variable success. Of the technologies in use, each has associated benefits and detriments, which can make the approach more or less suitable for certain environments and experiments. Within this article, we have divided several tracking systems that are currently available into two major categories (radio frequency identification and radio signal strength) and review the strengths and weaknesses of each, as well as environments or conditions for which they may be most suitable. We also describe related topics including types of analysis for the data and concerns with selecting focal birds.

The location of the Chicago portage route of the seventeenth century;

Mode of access: Internet.

Development of warrants for the use and location of truck escape ramps. Volume II - appendices.

West Virginia Department of Highways, Charleston

Development of warrants for the use and location of truck escape ramps. Volume I - final report.

West Virginia Department of Highways, Charleston

Selling to the military : Army, Navy, Air Force, Marine Corps, joint agencies : general information, items purchased, location of military purchasing offices.

Cover title.

Location of uranium deposits in southwestern North Dakota and the Cave Hills and Slim Buttes Areas, Harding County, South Dakota.

"July, 1956."

List and location of snow courses and snotel sites /

Mode of access: Internet.

Records of wells, drillers' logs, water analyses, and maps showing location of wells. Works Progress Administration ground water survey project. Analyses made, maps prepared, data assembled and report mimeographed by Works Progress Administration ...

Title varies.

The Gael = An gaeḋal : a monthly bi-lingual magazine devoted to the promotion of the literature, history, language, art, music, industries, etc. of Ireland ...

Editors: -Oct. 1901, Geraldine M. Haverty.- S.J. Richardson.