PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Using lysine estimates to detect heat damage in DDGS

2013-01-14
(Press-News.org) URBANA – Distillers dried grains with solubles (DDGS) are a good source of energy and protein in swine diets. However, they can be damaged by excessive heat during processing, compromising their nutritional value. University of Illinois researchers have found that it is possible to assess heat damage by predicting the digestibility of lysine in DDGS.

Excessive heat causes some of the lysine in DDGS to bond with sugars and form Amadori compounds. The lysine bound in these compounds is called unreactive lysine; pigs cannot digest it. Lysine that is not bound is referred to as reactive lysine; pigs can use it for protein synthesis.

"Some sources of DDGS are heat damaged. And, therefore, the digestibility of the lysine in particular is poor," said animal sciences professor Hans Stein. "If you know up front that a particular source is heat damaged, then you can add synthetic lysine to compensate. But the question is, how do you know whether or not a specific source is heat damaged?"

To answer this question, Stein and his team predicted the digestibility of lysine in 21 samples of corn DDGS based on several different methods of analysis: total crude protein concentration, total analyzed lysine concentration, reactive lysine concentration as determined using the furosine procedure, and lysine to crude protein ratio.

After making the predictions, they determined ileal lysine digestibility in the 21 samples using cannulated pigs and compared the predicted values for lysine digestibility with results obtained in the animals. Results indicated that the concentration of analyzed lysine in the sample was a good predictor of lysine digestibility (r2 = 0.849), but using the concentration of reactive lysine rather than the concentration of analyzed lysine improved the prediction accuracy (r2 = 0.898). Using the lysine to crude protein ratio as a second independent variable in the regression equation improved the predictions. Researchers could not accurately predict lysine digestibility using the concentration of crude protein alone.

"The practical outcome of this is that you can't analyze only for crude protein. You will need to have some kind of an estimate of lysine or furosine to know if your source of DDGS is heat damaged," Stein said. "However, if the concentration of lysine or furosine in a given source of DDGS is known, the digestibility of lysine can be predicted fairly accurately."

### The study was published in the Journal of Animal Science and was co-authored with Beob Gyun Kim and Dong Yong Kil, both former members of the Stein Monogastric Nutrition Laboratory at Illinois, and Yanhong Zhang of the National Corn to Ethanol Research Center in Edwardsville. The Illinois Corn Marketing Board and the feed company Agrifirm from the Netherlands provided funding for this research. END



ELSE PRESS RELEASES FROM THIS DATE:

Amino acid studies may aid battle against citrus greening disease

2013-01-14
This press release is available in Spanish.Amino acids in orange juice might reveal secrets to the successful attack strategy of the plant pathogen that causes citrus greening disease, also known as Huanglongbing or HLB. Studies of these amino acids by U.S. Department of Agriculture (USDA) chemist Andrew P. Breksa III and University of California-Davis professor Carolyn M. Slupsky may pave the way to a safe, effective, environmentally friendly approach to undermine Candidatus Liberibacter asiaticus, the microbial culprit behind HLB. The scientists used nuclear magnetic ...

ASH international clinical collaboration replicates high cure rate of APL in developing countries

2013-01-14
(WASHINGTON) – Data published online today in Blood, the Journal of the American Society of Hematology (ASH) describe the work of an ASH international clinical network collaborative focused on modernizing treatment protocols for patients in the developing world with acute promyeloctyic leukemia (APL) that has drastically improved cure rates in patients in Central and South America, achieving comparable outcomes to those observed in patients in the United States and in Europe. APL is a rare, aggressive cancer of the blood and bone marrow that can be fatal in a matter ...

Better care from doctors who are culturally aware

2013-01-14
HIV patients from ethnic minorities receive better quality of care from doctors and other primary healthcare professionals who are the most competent at caring for patients from diverse backgrounds – those who are "culturally competent." These patients also tend to manage both their treatment and condition better, according to a new study¹ by Somnath Saha from Portland VA Medical Center, and the Oregon Health & Science University in the US, and colleagues. Their findings appear in the Journal of General Internal Medicine², published by Springer. The authors explored whether ...

The secret sex life of the penicillin-producing fungus could make it more productive

2013-01-14
New and more effective strains of the fungus used to produce penicillin could be developed after a team of international scientists unearthed the secret sex life of Sir Alexander Fleming's fungus Penicillium chrysogenum (P. chrysogenum). The scientists from The University of Nottingham, Ruhr-University Bochum, The University of Göttingen, and Sandoz GmbH have announced a major breakthrough in our understanding of the sex life of the fungus P. chrysogenum. Their research looks sets to lead to the introduction of new and more effective strains of the world's first antibiotic ...

Parkinson's treatment can trigger creativity

Parkinsons treatment can trigger creativity
2013-01-14
Parkinson's experts across the world have been reporting a remarkable phenomenon — many patients treated with drugs to increase the activity of dopamine in the brain as a therapy for motor symptoms such as tremors and muscle rigidity are developing new creative talents, including painting, sculpting, writing, and more. Prof. Rivka Inzelberg of Tel Aviv University's Sackler Faculty of Medicine first noticed the trend in her own Sheba Medical Center clinic when the usual holiday presents from patients — typically chocolates or similar gifts — took a surprising turn. "Instead, ...

Team finds gene that promotes drug resistance in cancer

2013-01-14
Scientists from the University of Iowa and Brigham Young University (BYU) have identified a gene that may be a target for overcoming drug resistance in cancer. The finding could not only improve prognostic and diagnostic tools for evaluating cancer and monitoring patients' response to treatment but also could lead to new therapies directed at eradicating drug-resistant cancer cells. Drug resistance is a common problem in many metastatic cancers. It leads to failure of chemotherapy treatments and is associated with poor patient outcomes, including rapid relapse and death. The ...

American College of Physicians calls for immunizations for all health care providers

2013-01-14
PHILADELPHIA, January 14, 2013 -- The American College of Physicians (ACP) has approved a policy recommendation that all health care providers (HCPs) be immunized against influenza; diphtheria; hepatitis B; measles, mumps, and rubella; pertussis (whooping cough); and varicella (chickenpox) according to the Advisory Committee on Immunization Practices (ACIP) Adult Immunization Schedule. ACP's policy exempts HCPs for medical reasons or a religious objection to immunization. "These transmissible infectious diseases represent a threat to health care providers and the patients ...

Are some patients too heavy for a new kidney?

2013-01-14
ST. LOUIS – In a research review article published in the American Journal of Nephrology, Saint Louis University investigators examined data from multiple studies to better understand how obesity, an epidemic in the U.S., impacts kidney transplant patients. The authors report that, even as some connections between weight and health outcomes are unknown or contradictory, there is evidence that obese kidney transplant patients don't do as well after surgery, experiencing more adverse outcomes, including wound infections, delayed graft function, graft failure, cardiac disease ...

Noise protection – multifunctional and aesthetical

Noise protection – multifunctional and aesthetical
2013-01-14
Too much noise causes illness. This is as an undisputed fact nowadays, and yet we're still constantly assailed by noise as we go about our daily lives, be it from traffic or voices in large open-plan offices. Noise pollution can be reduced with the help of structural solutions; we've all seen noise barriers along busy roads and train lines, and there are special acoustic structural components, so-called sound absorbers, which are used inside buildings to keep noise levels down. But there's a problem. The construction components used up until now may well be effective at ...

Can acupuncture improve exercise performance and post-exercise recovery?

Can acupuncture improve exercise performance and post-exercise recovery?
2013-01-14
New Rochelle, NY, January 14, 2013—The effects of acute acupuncture applied during exercise on performance factors such as power and blood pressure and on the body's ability to recover post-exercise were evaluated in a review article published in The Journal of Alternative and Complementary Medicine, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the Journal website at http://www.liebertpub.com/acm. A review of the literature uncovered four studies designed to test whether a person receiving acupuncture while exercising ...

LAST 30 PRESS RELEASES:

iRECODE: A new computational method that brings clarity to single-cell analysis

New NUS-MOH study: Singapore’s healthcare sector carbon emissions 18% lower than expected, a milestone in the city-state’s net zero journey

QUT scientists create material to turn waste heat into clean power

Major new report sets out how to tackle the ‘profound and lasting impact’ of COVID-19 on cardiovascular health

Cosmic crime scene: White dwarf found devouring Pluto-like icy world

Major report tackles Covid’s cardiovascular crisis head-on

A third of licensed GPs in England not working in NHS general practice

ChatGPT “thought on the fly” when put through Ancient Greek maths puzzle

Engineers uncover why tiny particles form clusters in turbulent air

GLP-1RA drugs dramatically reduce death and cardiovascular risk in psoriasis patients

Psoriasis linked to increased risk of vision-threatening eye disease, study finds

Reprogramming obesity: New drug from Italian biotech aims to treat the underlying causes of obesity

Type 2 diabetes may accelerate development of multiple chronic diseases, particularly in the early stages, UK Biobank study suggests

Resistance training may improve nerve health, slow aging process, study shows

Common and inexpensive medicine halves the risk of recurrence in patients with colorectal cancer

SwRI-built instruments to monitor, provide advanced warning of space weather events

Breakthrough advances sodium-based battery design

New targeted radiation therapy shows near-complete response in rare sarcoma patients

Does physical frailty contribute to dementia?

Soccer headers and brain health: Study finds changes within folds of the brain

Decoding plants’ language of light

UNC Greensboro study finds ticks carrying Lyme disease moving into western NC

New implant restores blood pressure balance after spinal cord injury

New York City's medical specialist advantage may be an illusion, new NYU Tandon research shows

Could a local anesthetic that doesn’t impair motor function be within reach?

1 in 8 Italian cetacean strandings show evidence of fishery interactions, with bottlenose and striped dolphins most commonly affected, according to analysis across four decades of data and more than 5

In the wild, chimpanzees likely ingest the equivalent of several alcoholic drinks every day

Warming of 2°C intensifies Arctic carbon sink but weakens Alpine sink, study finds

Bronze and Iron Age cultures in the Middle East were committed to wine production

Indian adolescents are mostly starting their periods at an earlier age than 25 years ago

[Press-News.org] Using lysine estimates to detect heat damage in DDGS