News published on July 23, 2025
CHAMPAIGN, Ill. – The Poultry Science Association (PSA) is pleased to announce the newly elected members of its Board of Directors, introduced during the 114th PSA Annual Meeting held July 14–17, 2025, in Raleigh, North Carolina.
The new board members bring a wealth of academic, research, and industry expertise, reinforcing PSA’s mission to advance poultry science and the glob ...
Article published the May 2, 2024
IntroductionFood safety is a central concern in the poultry industry, with pathogens such as Salmonella causing outbreaks associated with meat and eggs [1]. Nearly 1 in 25 packages of chicken products at the average grocery store are contaminated with Salmonella, and Salmonella causes 1.35 million cases of infection every year in the United States (US) [1]. A multi-state Salmonella Enteritidis out ...
Participation in Forum on August 28, 2023
Hello Alvaro:In this study, we made the decision to use an available P level that would be based on a consistent standard - the breed management guide. Arguments can be made (and I make this argument on a regular basis) that in general, management guides recommend available P well in excess of the actual hen requirements. However, the guide is a consistent standard or point of reference. In our cu ...
Article published the August 22, 2023
About the studyPhytase supplementation has become a standard practice for poultry diets to enhance phosphorus (P) utilization and subsequently reduce P excretion. Previous phytase studies on hen performance, eggshell and bone quality have been done over short durations and using hens of varying ages.The knowledge gap is that there are no long-term phytase studies covering the rearing period throug ...
Article published the August 22, 2023
SummaryThe short-term study was conducted to test the effects of phytase supplementation in laying hen diets during peak production on bone characteristics as well as phosphorus (P) and calcium (Ca) digestibility.ProblemA large portion of dietary phosphorus is not utilized by laying hens and is excreted in feces, which leads to phosphorus pollution in the environment. Adding inorganic phosphorus t ...
Article published the August 22, 2023
SummaryThis study was conducted to test the efficacy of phytase in low phosphorus and calcium diets in the late production cycle for maintaining the productivity, eggshell and bone quality of hens fed low phosphorus and calcium.ProblemExogenous phytase supplementation has become a standard practice for poultry diets to liberate available phosphorus and reduce excretion of phosphorus in manure. Man ...
This member gave a presentation on July 10, 2023
At the following event:
This member gave a presentation on July 10, 2023
At the following event:
Participation in Forum on February 14, 2023
Mike Stahl
Hi Mike, good to hear from you. Feed intake ranged from 97 to 113 g per bird per day. If you have the original paper, this information can be found in Table 3. We didn't report feed intake before and after the trial, other than to make sure the birds were eating and producing well before the start of the trial. If you don't have the original paper, you can send me an email at doug.k ...
Article published the December 28, 2022