Effect of fluorescent vs. poultry-specific light-emitting diode lights on production performance and egg quality of W-36 laying hens

More energy-efficient, durable, affordable, and dimmable light-emitting diode (LED) lights are finding applications in poultry production. However, data are lacking on controlled comparative studies concerning the impact of such lights during the pullet rearing and subsequent laying phase. This study evaluated two types of poultry-specific LED light (PS-LED) vs. fluorescent light (FL) with regards to their effects on hen laying performance. A total of 432 Hy-Line W-36 laying hens were tested in two batches using four environmental chambers (nine cages per chamber and 6 birds per cage) from 17 to 41 weeks of age (WOA). Dim-to-red PS-LED and warm-white FL were used in the laying phase. The hens had been reared under a dim-to-blue PS-LED or a warm-white FL from 1 to 16 WOA. The measured performance variables included 1) timing of sexual maturity, 2) egg production performance, 3) egg quality, and 4) egg yolk cholesterol. Results showed that the two types of light used during the laying phase had comparable performance responses for all response parameters (P \u3e 0.05) with a few exceptions. Specifically, eggs laid from hens in the PS-LED treatment had lower shell thickness (P = 0.01) and strength (P = 0.03) than those in the FL treatment at 41 WOA. The two types of light used during the rearing phase did not influence the 17 to 41 WOA laying performance, except that hens reared under the PS-LED laid eggs with lower shell thickness (P = 0.02) at 32 WOA as compared to hens reared under the FL. This study demonstrates that the emerging poultry-specific LED lights yield comparable production performance and egg quality of W-36 laying hens to the traditional fluorescent lights

Illinois grain production and trade

Mode of access: Internet

DESART

A long poem in sections

Shaw\u27s Boarding House in Monson is a 30-year-old landmark on the Appalachian Tra

Shaw\u27s Boarding House in Monson is a 30-year-old landmark on the Appalachian Trail (AT) run by Keith and Pat Shaw and their son, Keith Jr., 21, who is in the process of taking over for his father, who is 72. The Shaws, both previously married, first met at Keith\u27s 47th birthday party. Keith Shaw Sr. has heart and lung problems but continues to be the face of the operation. The way station began with the Shaw\u27s hospitality to one hiker. Within a month, they were accommodating 20 hikers a night and have now housed over 34,000 hikers. In 1988, they appeared in National Geographic as the featured stop on the AT. Their\u27s is the last stop before the Hundred Mile Wilderness between Monson and Mount Katahdin, the end of the trail

Marketing southern Illinois corn, wheat, soybeans : a report of research /

Cover title.Includes bibliographical references

Relation of wheat acreage and production to wheat, corn, oat, and soybean prices in Illinois /

Cover title

Competition in the Transport Industries: A Review and Prospects

The transportation industry has passed into an extremely competitive era. There is intense competition both among the different modes of common carriers, and among private carriers of all kinds and common carriers for freight and passenger. The intense controversy in Congress and before the regulatory commissions recently has been largely over rate reductions and rate-making procedures that intensify competition. Rates have been relatively stable for the past 3 years, and rail rates have actually declined slightly for farm products. Three areas of major difference have developed: (1) The Interstate Commerce Commission's interpretation of the Transportation Act of 1958 has made it somewhat less difficult for railroads to justify their competitive rate reductions; (2) the ICC and court interpretations of the new piggyback proposals (Plans III and IV) of the railroads have permitted some experimentation with all-commodity rates as opposed to the historic classification and commodity rate making; (3) finally, the competition from private autos and trucks has compelled common carriers of both freight and passengers to seek ways of reducing rates and fares through volume freight rates and heavier loading of freight cars and trucks, air bus and shuttle fares, and other devices

Competition in the Transport Industries: A Review and Prospects

The transportation industry has passed into an extremely competitive era. There is intense competition both among the different modes of common carriers, and among private carriers of all kinds and common carriers for freight and passenger. The intense controversy in Congress and before the regulatory commissions recently has been largely over rate reductions and rate-making procedures that intensify competition. Rates have been relatively stable for the past 3 years, and rail rates have actually declined slightly for farm products. Three areas of major difference have developed: (1) The Interstate Commerce Commission's interpretation of the Transportation Act of 1958 has made it somewhat less difficult for railroads to justify their competitive rate reductions; (2) the ICC and court interpretations of the new piggyback proposals (Plans III and IV) of the railroads have permitted some experimentation with all-commodity rates as opposed to the historic classification and commodity rate making; (3) finally, the competition from private autos and trucks has compelled common carriers of both freight and passengers to seek ways of reducing rates and fares through volume freight rates and heavier loading of freight cars and trucks, air bus and shuttle fares, and other devices

An Analysis and Evaluation of the Grain Marketing System in Southern Illinois

151 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1954.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD