Featured Research

from universities, journals, and other organizations

Making the most of colostrum

Date:
March 28, 2012
Source:
Teagasc
Summary:
Acquisition of sufficient immunoglobulins from colostrum immediately after birth is the single most important factor in ensuring the health and productivity of the calf.

Acquisition of sufficient immunoglobulins from colostrum immediately after birth is the single most important factor in ensuring the health and productivity of the calf.

Related Articles


The highest quality colostrum was obtained from cows in their fifth lactation. For all parities, IgG concentration in milk declined rapidly with each successive milking post-calving: the concentration at least halved between first and second milking. Only the colostrum from the first milking had an IgG concentration above the threshold of 50mg/ml IgG.

Colostrum is the milk produced at the first milking post-calving and contains a host of vital immunological and nutritional substances that are crucial to ensure the health of the newborn calf. The most important of these are the immunoglobulins, cells of the immune system that protect the newborn calf from the environmental pathogens it will encounter as soon as it is born. The bovine placenta does not allow the transfer of immunoglobulins from the mother to the calf while the calf is in utero so the calf is born with no circulating immunoglobulins, and depends entirely on colostrum to provide it with immunological protection.

"Without adequate immunological protection, the newborn calf is more vulnerable to infection, more likely to develop disease and die in the pre- and post-weaning periods, has a slower growth rate and even reduced milk production during the first and second lactation," explains Dr Emer Kennedy, Teagasc Animal and Grassland Research & Innovation Centre.

Researchers at Teagasc Moorepark, analysed the concentration of immunoglobulin G (IgG) in colostrum of 642 spring-calving dairy cows using an ELISA method. "The concentration of immunoglobulin G (IgG) in the colostrum determines its quality; the higher the IgG concentration, the better the quality," explains Dr Kennedy. The researchers found that the quality of colostrum was high (greater than 50mg/ml) in 96% of the samples.

The study found that older parity cows produced colostrum with a higher IgG concentration at the first milking. The highest quality colostrum was obtained from cows in their fifth lactation. For all parities, IgG concentration in milk declined rapidly with each successive milking post-calving: the concentration at least halved between first and second milking. Only the colostrum from the first milking had an IgG concentration above the threshold of 50mg/ml IgG.

"This study highlights the importance of using only the colostrum obtained at the first milking as a source of colostrum for newborn calves regardless of which parity the cow is," concludes Dr Kennedy.


Story Source:

The above story is based on materials provided by Teagasc. Note: Materials may be edited for content and length.


Cite This Page:

Teagasc. "Making the most of colostrum." ScienceDaily. ScienceDaily, 28 March 2012. <www.sciencedaily.com/releases/2012/03/120328122845.htm>.
Teagasc. (2012, March 28). Making the most of colostrum. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2012/03/120328122845.htm
Teagasc. "Making the most of colostrum." ScienceDaily. www.sciencedaily.com/releases/2012/03/120328122845.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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