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

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
University of Illinois College of Agricultural, Consumer and Environmental Sciences

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:
(Date:12/1/2015)... , Dec. 1, 2015 Synaptics Incorporated (NASDAQ: ... solutions, today announced a new agreement with Nok ... real-world test and development environments that combine FIDO Certified ... partnership reduces the complexity of FIDO certification for Synaptics, ... Synaptics and OEMs to verify FIDO enabled devices in ...
(Date:11/30/2015)... Nov. 30, 2015  BIOCLAIM announced today that ... year,s Fierce Innovation Awards:  Healthcare Edition, an awards ... , FierceHealthcare , and ... finalist in the category of "Privacy and Cybersecurity." ... --> Photo - ...
(Date:11/26/2015)... , Nov. 26, 2015 Research and ... the "Capacitive Fingerprint Sensors - Technology and Patent ... --> --> Fingerprint ... especially in smartphones. The fingerprint sensor vendor Idex forecasts ... sensor units in mobile devices and of the fingerprint ...
Breaking Biology News(10 mins):
(Date:12/1/2015)... 1, 2015 Vancouver ... lancet that features Owen Mumford,s unique Comfort Zone Technology®. ... Unistik® Touch is a touch activated lancet that features ... Owen Mumford, a leading medical device manufacturer, today unveils ... available initially in the US before expanding out to ...
(Date:12/1/2015)... , Dec. 1, 2015 Today the Allen ... Seattle,s South Lake Union neighborhood, ... of Mercer Street and Westlake Avenue North, the 270,000 ... Allen Institute for Brain Science and the Allen Institute ... philanthropist and founder of the Allen Institute. "We started ...
(Date:12/1/2015)... CAMBRIDGE, Mass. , Dec. 1, 2015 ... and the McGovern Institute for Brain Research at MIT ... system that significantly cut down on "off-target" editing errors. ... issues in the use of genome editing. ... report that changing three of the approximately 1,400 amino ...
(Date:12/1/2015)... Dec. 1, 2015  Twist Bioscience, a company focused on ... , Ph.D., has been selected as one of Foreign ... fast-tracking the building blocks of life . Each year, ... whose contributions and work have changed lives and are shaping ... "It is an honor to be recognized among these incredible ...
Breaking Biology Technology: