Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Calculating phosphorus and calcium concentrations in meat and bone meal for pig diets

24.04.2013
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.

The equations are presented and the research described in detail in the article "Digestibility of phosphorus and calcium in meat and bone meal fed to growing pigs" by R. C. Sulabo and H. H. Stein, which was recently published in the Journal of Animal Sciences (2013.91:1285-1294) and is available online at http://www.journalofanimalscience.org/content/91/3/1285.long.

Susan Jongeneel | EurekAlert!
Further information:
http://www.illinois.edu

Further reports about: Calcium Calculating bone meal phosphorus raw material soybean meal

More articles from Agricultural and Forestry Science:

nachricht Raiding the rape field
23.05.2018 | Julius-Maximilians-Universität Würzburg

nachricht New technique reveals details of forest fire recovery
17.05.2018 | DOE/Brookhaven National Laboratory

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

When corals eat plastics

24.05.2018 | Ecology, The Environment and Conservation

Surgery involving ultrasound energy found to treat high blood pressure

24.05.2018 | Medical Engineering

First chip-scale broadband optical system that can sense molecules in the mid-IR

24.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>