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:2/8/2017)... 2017 Report Highlights The global ... $8.3 billion in 2016 at a compound annual growth ... Report Includes - An overview of the global market ... data from 2015 and 2016, and projections of compound ... the market on the basis of product type, source, ...
(Date:2/3/2017)... 3, 2017  Texas Biomedical Research Institute announced that its ... Schlesinger as the Institute,s new President and CEO. Dr. ... 31, 2017. He is currently the Chair of the Department ... for Microbial Interface Biology at Ohio State University. ... President and CEO of Texas Biomed," said Dr. James ...
(Date:2/1/2017)... 2017 IDTechEx Research, a leading provider of ... the availability of a new report, Sensors for Robotics: Technologies, ... Reading ... ... Source: IDTechEx Report "Sensors for Robotics: Technologies, Markets and Forecasts 2017-2027: ...
Breaking Biology News(10 mins):
(Date:2/23/2017)... upscale Capitol Hill neighborhood, with its swanky shops, parks and cafés, ... treatment salon to set up shop. But there,s Hair ... bistro on E Madison Ave, and CEO Maria Botham ... clinic, we pride ourselves on being a destination for parents ... stigma associated with lice. Everyone can get lice – it ...
(Date:2/23/2017)... ... , ... Today, researchers can fast-track sample collection and analysis ... biomarkers or SNPs of interest) using one, easy-to-collect saliva sample. With the addition ... insulin and other relevant biomarkers can be extensively studied through a non-invasive sample ...
(Date:2/23/2017)... BELLINGHAM, Washington, USA, and CARDIFF, UK (PRWEB) , ... ... ... SPIE, the international society for optics and photonics , have been named Fellows ... each individual’s significant scientific and technical contributions in the multidisciplinary fields of optics, ...
(Date:2/22/2017)... , Feb. 22, 2017 Scientists propose ... inflammation and organ damage in Gaucher and maybe other ... risks and lower costs than current therapies. ... Hospital Medical Center , which also included investigators from ... , report their data Feb. 22. The study was ...
Breaking Biology Technology: