Featured Research

from universities, journals, and other organizations

Anti-Stress Formula Gives Calves A Boost

Date:
March 31, 2005
Source:
USDA / Agricultural Research Service
Summary:
An "infant formula" for calves that may help them fight infection from Salmonella and other microbes--especially during stressful times--has been developed by Agricultural Research Service (ARS) scientist Susan Eicher.

Purdue University graduate student Danielle Cary (left) and immunologist Susan Eicher feed a calf a fluorescently labeled supplement that will enable them to determine where the supplement acts to boost the immune system.
Credit: Photo by Peggy Greb

An "infant formula" for calves that may help them fight infection from Salmonella and other microbes--especially during stressful times--has been developed by Agricultural Research Service (ARS) scientist Susan Eicher.

The dietary supplement alters calves' immunity enough to help them cope with transport stress, which appears to be among the worst sources of stress early in an animal's life.

The formula contains beta-glucan from yeast cell walls and vitamin C. Studies showed it reduced stress in Holstein dairy calves taken from their mothers within 24 hours after birth and transported.

To mimic commercial operations, Eicher and colleagues took Holstein dairy calves--usually 3 to 10 days old--on 6- to 8-hour trips every Monday, to measure stress. They treated half of the calves in each truckload with one of two versions of the experimental formula. Eicher is an immunologist in the ARS Livestock Behavior Research Unit at West Lafayette, Ind.

Formula-fed calves regained their appetites and resumed normal growth--with improved nutrient utilization--faster than those not fed the formula. They were also more active and had lower levels of fibrinogen, a liver protein that typically increases with transport stress.

The formula seems to work with the mother's colostrum, a fluid produced by the mother's mammary glands in the first hours after birth. Colstrum provides nutrients as well as substances that help protect the newborn animal against disease until the young animal's own immune system begins to function. Calves given the formula had higher levels of immunoglobulins, which are transferred in colostrum and are indicators of a good immune system.

Another possible connection to colostrum was that untreated calves experienced less stress if they were trucked before or after the fourth day following birth. According to Eicher, this may be because calves are making the metabolic transition from colostrum to milk at around day four.

As part of an effort to find out exactly how the anti-stress formula works, Eicher is now studying calves' immune cells under a microscope to see where beta-glucan moves and where it accumulates.

ARS is the U.S. Department of Agriculture's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA / Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA / Agricultural Research Service. "Anti-Stress Formula Gives Calves A Boost." ScienceDaily. ScienceDaily, 31 March 2005. <www.sciencedaily.com/releases/2005/03/050325184123.htm>.
USDA / Agricultural Research Service. (2005, March 31). Anti-Stress Formula Gives Calves A Boost. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2005/03/050325184123.htm
USDA / Agricultural Research Service. "Anti-Stress Formula Gives Calves A Boost." ScienceDaily. www.sciencedaily.com/releases/2005/03/050325184123.htm (accessed September 17, 2014).

Share This



More Plants & Animals News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins