fbpx
Sign up now!
Don't show this again

Thank you for confirming your subscription!

(And remember, if ever you want to change your email preferences or unsubscribe, just click on the links at the bottom of any email.)
Tap to download the app
X
Share
X

REPORTS

Collect articles and features into your own report to read later, print or share with others

Create a New Report

Favorites

Read Later

Create a new report

Report title (required) Brief description (optional)
CREATE
X
NEXT
POULTRY PORK
follow us


You must be logged in to edit your profile.

Favorites Read Later My Reports PHT Special Reports
Poultry Health Today is equipped with some amazing (and free) tools for organizing and sharing content, as well as creating your own magazines and special reports. To access them, please register today.
Sponsored by Zoetis

Sponsored By Zoetis

.

Impact of lighting types on broiler performance

A study at the University of Delaware shows that broiler performance in terms of breast and body weights was similar for two poultry-specific LED lamps and incandescent lamps and better than for CCFL.

Alternative lighting has the potential to reduce electrical consumption, but questions remain as to the impact on bird performance, according to E.R. Benson, R.L. Alphin, H. Li and C.J. Schmidt of the University of Delaware.

The goal of their project, sponsored by the US Poultry and Egg Association, was to study the impact of conventional and alternative lighting technologies on production growth parameters, organ weight and stress under controlled conditions.

In the initial proposal, incandescent, cathode fluorescent lamps (CFL), cold cathode fluorescent (CCFL) and one light-emitting diode (LED) technology were to be compared. However, after discussions with industry, this was altered to incandescent, CCFL and two agriculture-specific LED lamps.

The project had two objectives:

  • to evaluate the impact of incandescent, cold cathode fluorescent (CCFL) and light emitting diode (LED) on broiler performance during 42 day grow-outs, and
  • to determine the interaction between lighting programmes and lamp technology.

This study raised commercial broilers under one of four alternative lighting technologies with two replications per trial and four trials timed to balance across seasons. CCFL and incandescent lamps were used along with two poultry-specific LED lamps.

Bird numbers – approximately 84 per replication – were standardised to provide a balance between manageability and a large enough sample size to be significant. Selections of birds were euthanised and organ weights collected during necropsy at regular intervals.

The researchers found differences in performance between technologies.

Overall bodyweight was statistically similar for both LED lamps and incandescent but was lower for CCFL lamps. Lower body weight under CCFL lighting is consistent with field observations.

Controlled field trials with other LED lamps show lower bodyweight, which raises questions about the differences between different types of LED lamps, said Benson and colleagues.

In both laboratory and field trials, incandescent lamps tend to produce the highest bodyweight. There was a strong seasonal effect with the bodyweights.

No significant differences were observed for feed conversion, breast muscle weight or organ weights. Heterophil:lymphocyte ratio results show separation between some technologies, indicating potential differences in stress between technologies and/or lamps.

Based on the results of this study, CCFL lamps should not be used for broiler production, concluded the Newark-based researchers. They added that two types of LED lamps and incandescent lamps showed statistically similar body and breast weights.

Although not specifically measured in this study, Benson et al. (2013) documented the reduced energy consumption of LED lamps for poultry production. The two poultry-specific lamps tested in this study showed similar performance to incandescent lamps and can be expected to provide materially reduced energy consumption and warrant strong but careful consideration for production applications.

October 2013

Article courtesy of thepoultrysite.com.





tags: ,
RELATED NEWS
  • More collaboration needed to drive housing welfare standards

    Greater collaboration between producers, veterinarians, engineers and scientists is needed to design housing systems that offer the highest levels of hen welfare, according to a leading geneticist.

  • Taking a holistic approach to poultry health

    Poultry companies need to adopt a "more holistic approach" to poultry medicine — one that considers the birds' environment and other variables that can affect vaccine and antibiotic performance, according to Marco Quiroz, DVM, a veterinarian at Zoetis.

  • Waste-heat recovery system could save millions annually while improving air quality

    A team of researchers and engineers from the University of Missouri has developed a waste-heat recovery system that could lead to significant savings in propane costs for producers heating their poultry barns.

  • Temperature, relative humidity, bird size affect broiler-house ventilation

    Optimal air quality in tunnel-ventilated broiler houses is a function of temperature, relative humidity, bird heat production and air velocity, according to new research conducted at the University of Georgia and funded by the US Poultry and Egg Association.




You must be logged in to edit your profile.

Google Translate is provided on this website as a reference tool. However, Poultry Health Today and its sponsor and affiliates do not guarantee in any way the accuracy of the translated content and are not responsible for any event resulting from the use of the translation provided by Google. By choosing a language other than English from the Google Translate menu, the user agrees to withhold all liability and/or damage that may occur to the user by depending on or using the translation by Google.