Sign up now!
Don't show this again
Sweepstakes Rules

We’re glad you’re enjoying Poultry Health Today.
Access is free but you’ll need to register to view more content.
Already registered? Sign In
Tap to download the app
REPORTSCollect articles and features into your own report to read later, print or share with others

Create a New Report


Read Later

Create a new report

Report title (required) Brief description (optional)
follow us

You must be logged in to edit your profile.

Sponsored by Zoetis

Sponsored By Zoetis

Crowded Chickens

High stocking density predisposes broilers to NE

Sound Science Logo 111x108High stocking density has adverse effects on broiler welfare and intestinal health and predisposes the birds to necrotic enteritis (NE), according to the results of an experiment conducted by researchers from the Aristotle University of Thessaloniki.1

For their study, investigators randomly assigned 240 day-old broilers to one of four groups. Two groups had normal stocking density, defined as 15 birds/square meter (10.7 square feet), and two more groups had high stocking density, defined as 30 birds/square meter.

Researchers challenged one of the normal and one of the high stocking-density groups with a 10-fold oral dose of an attenuated anticococcidal vaccine plus multiple oral inoculations with a strain of Clostridium perfringens. The remaining two groups were not challenged and were used as controls.

The researchers then collected and scored the birds for gross lesions; they also collected intestinal digesta to test for pH and viscosity, and caeca for microbiological analysis.

Investigators found a “significant interaction” between high stocking density and challenge based on their evaluation (p ≤ 0.05). Compared to unchallenged controls, high stocking density in challenged birds also increased the gross lesion score in the intestines, they reported in the April 2015 issue of Avian Pathology.


1 Tsiouris V, et al. High stocking density as a predisposing factor for necrotic enteritis in broiler chicks. Avian Pathol. 2015 april;44(2):59-66.

Posted on September 28, 2015

tags: , ,

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.