Navigation Links
Calculating phosphorus and calcium concentrations in meat and bone meal for pig diets
Date:4/23/2013

URBANA Following the drought of 2012, the prices of corn and soybean meal for livestock diets have increased significantly. In an effort to reduce their costs, pork producers are looking for alternative sources of calcium (Ca) and phosphorus (P). Researchers at the University of Illinois have developed equations for calculating the concentrations of these minerals in byproducts from the rendering industry.

Professor of animal sciences Hans H. Stein and his team determined the digestibility of Ca and P in meat and bone meal (MBM), which is traditionally used as a source of protein in animal diets. MBM contains greater concentrations of Ca and P than all plant feed ingredients, so it can replace inorganic phosphates in swine diets without harming the bones or negatively affecting growth of the animals.

However, to use MBM effectively as a source of P and Ca, producers need an accurate assessment of the digestibility of these minerals when fed to pigs.

"There is quite a bit of variability in meat and bone meal, which is probably caused by different types of raw materials going into it," Stein said.

The researchers formulated eight diets using MBM from five companies in the United States. The ninth diet was P-free and was used to determine the endogenous losses of P from the animals. This value was used to calculate the standardized total tract digestibility (STTD) of P in the eight sources of MBM.

Results indicated that there is a negative correlation between ash content in MBM and digestibility of Ca and P, but all sources of MBM had a relatively high digestibility of Ca and P. Moreover, Ca and P concentrations varied two to four times more among the batches of MBM than protein and acid hydrolyzed ether extract concentrations. However, ash content had a highly significant positive correlation with Ca and P concentrations.

"Thus, if you know the concentration of ash, you can calculate the concentration of calcium and phosphorus," Stein said. "Ash is easy and inexpensive to analyze."

Stein and his team also developed equations to calculate Ca and P concentrations in MBM and proposed models for estimating STTD of P and Apparent Total Tract Digestibility (ATTD) of Ca.


'/>"/>

Contact: Susan Jongeneel
sjongene@illinois.edu
217-333-3291
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert

Related biology news :

1. When the soil holds not enough phosphorus
2. Helping pigs to digest phosphorus
3. The Phosphorus Index: Changes afoot
4. Researchers identify a simple way to precipitate phosphorus from the wastewater of a pulp mill
5. Dietary shifts driving up phosphorus use
6. Phosphorus starvation linked to symptoms of citrus disease Huanglongbing in new study
7. Heart study suggests city center pollution doubles risk of calcium build-up in arteries
8. Vitamin D with calcium shown to reduce mortality in elderly
9. Diets high in salt could deplete calcium in the body: UAlberta research
10. New research: Soluble corn fiber plays important role in gut health and calcium absorption
11. Danish researchers release ground-breaking knowledge about calcium pumps in cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/21/2017)... N.Y. and PORTLAND, Ore. ... ) and the Avamere Family of Companies (Avamere Health ... today announced a six-month research study that will apply ... improve eldercare at senior living and health centers. By ... Avamere hopes to gain insights into physical and environmental ...
(Date:2/16/2017)... 16, 2017  Genos, a community for personal ... has received Laboratory Accreditation from the College of ... to laboratories that meet stringent requirements around quality, ... processes. "Genos is committed to maintaining ... We,re honored to be receiving CAP accreditation," said ...
(Date:2/13/2017)...  RSA Conference -- RSA, a Dell Technologies business, ... enhance fraud detection and investigation across digital environments ... & Risk Intelligence Suite. The new platform is ... from internal and external sources as well as ... from targeted cybercrime attacks. "Fraudsters are ...
Breaking Biology News(10 mins):
(Date:2/21/2017)... ... 21, 2017 , ... Cancer diagnostics workflow solution provider Inspirata, ... team to lead the development and commercialization of its Cancer Information Data Trust ... and treatment of cancer. The CIDT addresses the need for curated and structured ...
(Date:2/21/2017)... ... February 21, 2017 , ... ... and manufacturing solutions for original equipment manufacturers (OEMs) , today announced it has ... Technologies’ third consecutive year winning in its category of electronics manufacturing services (EMS) ...
(Date:2/21/2017)... , February 21, 2017 ... Technology for Adoption by Plastic Industry  ... STEER, creator ... functionalise materials in the fields of plastics, pharmaceuticals, food and ... with Merck, a leading science & technology company, on ...
(Date:2/20/2017)... , Feb. 20, 2017 /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ... President and CEO and Fabrice Orecchioni, the company,s COO, has been ... COO over the past four years, Fabrice has overseen the construction, ... and the management of the Mitsui JV.  Fabrice has ... the proposed China JV. ...
Breaking Biology Technology: