HOME >> BIOLOGY >> NEWS
Chickens dieting to help Delaware waterways

Dieting to lose weight and improve your health?

Millions of chickens in Delaware--one of the nation's top poultry producers--have been on a diet to reduce their impact on the environment and improve the health of the state's waterways, and it appears to be working.

Extensive research led by William Saylor, professor of animal and food sciences at the University of Delaware, has confirmed that Delaware chickens now digest more of the phosphorus, an essential nutrient, in their feed, thanks to the addition of a natural enzyme called phytase. As a result, about 23 percent less phosphorus is output in chicken manure.

So now when poultry litter is used to fertilize a farm field, a lot less phosphorus is available to potentially leach from the soil or be carried off in storm water to a river or bay.

And that's good news for waterways like Delaware's Inland Bays, where overloads of nutrients, particularly phosphorus and nitrogen, have contributed to serious water-quality problems, such as massive blooms of algae and fish kills.

To put it in perspective, in 2006, Delaware farmers produced over 269 million broiler chickens--1.8 billion pounds of poultry--valued at more than $739 million, according to the Delmarva Poultry Industry. Those chickens produced more than 280,000 tons of waste.

According to recent analyses by David Hansen, UD assistant professor of soil and environmental quality, there are now about 19 pounds of phosphorus in a ton of Delaware poultry litter compared to 25 to 30 pounds of phosphorus per ton of litter just five years ago. The 30-40 percent reduction is credited to phytase-modified diets and other nutrient management practices adopted by poultry farmers under Delaware's Nutrient Management Law of 1999. That reduction means that the phosphorus load to the environment has been reduced by some 2 million to 3 million pounds per year.

Addressing a weighty problem

Phos
'"/>

Contact: Tracey Bryant
tbryant@udel.edu
302-831-8185
University of Delaware
31-Jul-2007


Page: 1 2 3 4

Related biology news :

1. Chickens also orient themselves by the Earths magnetic field
2. Chickens orient using a magnetic compass
3. Furry-clawed Asian crabs found in Delaware and Chesapeake Bays
4. University of Delaware researchers develop cancer nanobomb
5. Delaware scientists make significant advance in study of small RNAs
6. The Academy of Natural Sciences investigates effects of climate change on Delaware tidal marshes
7. Anti-bacterial additive widespread in U.S. waterways

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/16/2019)... ... June 14, 2019 , ... Emtec, Inc.®, ... deliver a joint presentation with Versiti’s CIO at the Healthcare Industry User ... Shingle Creek Resort. , Versiti Vice President and Chief Information Officer, Lynne Briggs, ...
(Date:6/11/2019)... ... June 12, 2019 , ... ... services, Abveris plans to leverage the Geneious Biologics platform as a premium hub ... Technology Officer at Abveris, says: “The Geneious team has done an excellent job ...
(Date:6/6/2019)... ... June 05, 2019 , ... Ziegler, a specialty investment ... Pathologists Bio-Medical Laboratories (PBM) on its recent acquisition by PathGroup. , Headquartered ... services to more than one dozen hospitals and surgery centers in the Dallas-Fort ...
Breaking Biology News(10 mins):
(Date:7/17/2019)... ... July 16, 2019 , ... Quidel ... report from Kalorama Information. Abbott, Roche and Siemens Healthineers and Response Biomedical also ... report, Worldwide Market for Point-of-Care (POC) Diagnostics . , Quidel is a ...
(Date:7/9/2019)... ... July 08, 2019 , ... ... SmartLight Indicator was recognized as the 2019 Innovative Product of the Year which ... prestigious awards were during Sensors Expo & Conference 2019, held this ...
(Date:6/18/2019)... YORK and SOMERSET, N.J. (PRWEB) , ... June ... ... Catalent Biologics, today announced that they have entered into an agreement for production ... product candidates, IC-100 for the treatment of rhodopsin-mediated autosomal dominant retinitis pigmentosa (RHO-adRP) ...
(Date:6/11/2019)... , ... June 10, 2019 , ... ... its distribution network with the appointment of Biofeedback Tech Ltd as ... systems are an essential part of many therapeutic treatments and clinical assessment protocols ...
Breaking Biology Technology:
Cached News: