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.)

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


Collect 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.

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


Adapt feeding programs to reduce summer heat stress

website builder Adjusting broiler feeding programs in the summer months can help avoid the health and growth challenges associated with heat stress.

Writing in WattAgNet, nutritionist Ioannis Mavromichalis said the process of eating, digesting and metabolizing feed generates heat.

In a bid to reduce discomfort by limiting an internal heat source, birds will stop eating — leading to detrimental effects on performance as well as health and welfare.

To tackle the problem, Mavromichalis recommends four measures which can be used in combination on farms, depending on their circumstances:

1. Adjust feeding management

During intense heat, limit access to feeders — it might not help with growth, but it will avoid mortality spikes. Make sure birds have access to cool water, and consider switching from meal to pellets to increase nutrient ingestion, as birds fill up more slowly with pellets.

2. Adjust feed formulations

Energy, protein and fiber each require attention. Energy should be increased by adding highly-digestible oils, whole protein should be reduced by adding more feed-grade amino acids. Changing fiber profiles can also limit heat production, as guts with less fiber will contain less heat-generating bacteria.

3. Adjust water supplements

Adding supplements should be done before changes to feed. Birds will try to drink before they eat, so if stress is alleviated through water it could be a less-expensive solution.

4. Adjust feed additives

In general, the more antioxidants added to feed the better, as heat stress causes an increase of oxidative species in the gut. Additives such as potassium chloride and sodium carbonate are also used frequently during heat stress.

Full article






Posted on September 17, 2018

tags: ,
  • 5 steps to preventing heat stress in layers

    By John Brown, DVM, Senior Technical Services Veterinarian Zoetis

  • Special report: Helping broiler chickens keep their cool

    The scorching days of summer are almost here. In this special report, Poultry Health Today looks at the impact of heat stress and ways to prevent it.In this special report, Poultry Health Today looks at the impact of heat stress and ways to prevent it.

  • Check equipment now to help birds withstand summer heat

    By Jess Campbell, Jeremiah Davis and Kelly Griggs, National Poultry Technology Center, Auburn University

  • Prepare now for summer heat, humidity

    By Tom Tabler, PhD, Extension Professor, Mississippi State University Extension Service, Poultry Science Department, Mississippi State, Mississippi

You must be logged in to edit your profile.

website builder

Share It
Genotypes of infectious bronchitis virus (IBV) found in California between 2012 and 2020 have seen a “major shift,” according to a study investigating patterns of IBV in the state.

Click an icon to share this information with your industry contacts.
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.