Navigation Links
Model developed for manipulating vitamin D levels in calves
Date:5/25/2010

This press release is available in Spanish.

A new model for manipulating vitamin D levels in young calves has been developed by Agricultural Research Service (ARS) scientists who say it could help establish just how much of this important nutrient the young animals need to promote optimal growth and health.

Newborn dairy calves get crucial vitamin D in the colostrum from their mothers as they nurse during the first few days after birth. Later, the neonatal calf often receives vitamin D in commercial milk replacers. But levels of vitamin D in these supplements may need to be reevaluated, given recent evidence suggesting vitamin D status influences not only bone growth, but also immune function.

ARS microbiologist Brian Nonnecke and others at the ARS National Animal Disease Center in Ames, Iowa, are examining the effects of vitamin D on the calf's immune systemespecially relevant given the animal's susceptibility to infectious respiratory and intestinal diseases during its first weeks of life.

Nonnecke and his colleagues Tim Reinhardt and Ray Waters used the neonatal dairy calf as a model for evaluating the vitamin D status of calves. In the study, vitamin D status was controlled by vitamin D injections given to calves fed a vitamin-D-free milk replacer. They injected half the calves with 8,600 international units (IU) of vitamin D, and the rest with 54,000 IU of the vitamin. Using this approach, they found that vitamin D levels in the bloodstream of the young calf could be controlled in a predictable fashion.

The researchers also found that this model could be adapted to examine effects of subclinical vitamin D deficiency on the immune system of the calf. This is important, given that 8 to 10 percent of neonatal dairy calves in the United States die during the first months of life, and more than 30 percent are diagnosed with some form of clinical disease.

New studies using this model might provide support for revision of the National Research Council's current vitamin D recommendation for calves. It has the potential to allow researchers to take the next step toward determining the effects of vitamin D on the calf's immune system.


'/>"/>

Contact: Chris Guy
Chris.Guy@ars.usda.gov
301-504-1654
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Related biology news :

1. Genetics Society of America to host Model Organisms to Human Biology Meeting, June 12-15, 2010
2. Study paves way for new biofuels models, technologies
3. Species distribution models can exaggerate differences in environmental requirements
4. Modeling reef ecosystems focus of workshop
5. Model predicts shifts in carbon absorption by forest canopies
6. New mathematical model helps biologists understand how coral dies in warming waters
7. GENETICS 2010: Model Organisms to Human Biology Meeting
8. Stem cells used to model infant birth defect
9. Caltech and UCSD scientists establish leech as model for study of reproductive behavior
10. Model may offer better understanding of embryonic development
11. Cool model for a hot planet
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2017)... UBM,s Advanced Design and Manufacturing event in ... and evolving technology through its 3D Printing and Smart ... the expo portion of the event and feature a ... on trending topics within 3D printing and smart manufacturing. ... will take place June 13-15, 2017 at the Jacob K. ...
(Date:4/11/2017)... , April 11, 2017 No ... but researchers at the New York University Tandon ... of Engineering have found that partial similarities between ... systems used in mobile phones and other electronic ... The vulnerability lies in the fact ...
(Date:4/5/2017)... , April 5, 2017 Today HYPR ... that the server component of the HYPR platform is ... providing the end-to-end security architecture that empowers biometric authentication ... HYPR has already secured over 15 million users across ... manufacturers of connected home product suites and physical access ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... (PRWEB) , ... October 10, ... ... development-stage cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed ... targeted HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed in collaboration with ...
(Date:10/10/2017)... ... October 10, 2017 , ... USDM Life Sciences , ... life sciences and healthcare industries, announces a presentation by Subbu Viswanathan and Jennifer ... “Automating GxP Validation for Agile Cloud Platforms,” will present a revolutionary approach to ...
(Date:10/9/2017)... ... October 09, 2017 , ... The Giving Tree ... products targeting the needs of consumers who are incorporating medical marijuana into their ... Phoenix, Arizona. , As operators of two successful Valley dispensaries, The Giving Tree’s ...
(Date:10/6/2017)... ... October 06, 2017 , ... ... the healthcare and technology sector at their fourth annual Conference where founders, investors, ... inspiring speakers and the ELEVATE pitch competition showcasing early stage digital health and ...
Breaking Biology Technology: