Featured Research

from universities, journals, and other organizations

Horse racing: The performance of young, cold-blooded trotters – heredity, environment and muscular characteristics

Date:
June 27, 2011
Source:
Norwegian School of Veterinary Science
Summary:
Heredity is of more importance than environment when it comes to young, cold-blooded horses' chances of performing well in races. In spite of large individual variations in muscular characteristics, it seems that the muscles of young, cold-blooded trotters have a relatively low oxidative capacity, which may be one of the reasons why this breed of horses often has a late debut on the horse-racing track.

Trotter. Heredity is of more importance than environment when it comes to young, cold-blooded horses' chances of performing well in races.
Credit: Eugen Wais / Fotolia

Heredity is of more importance than environment when it comes to young, cold-blooded horses' chances of performing well in races.

Related Articles


In spite of large individual variations in muscular characteristics, it seems that the muscles of young, cold-blooded trotters have a relatively low oxidative capacity, which may be one of the reasons why this breed of horses often has a late debut on the horse-racing track.

This is one of the findings of Tobias Revold's doctoral research, in which he has studied factors affecting the probability of good racing performances in young, cold-blooded trotters. His thesis also describes the horses' muscular characteristics and how these can change as a result of training.

Less than a third of registered cold-blooded trotters will start participating in ordinary trotting races during the three-year season, even though the trotting speed of this breed has gradually increased over the last few decades.

Revold has studied 144 cold-blooded trotters born in 2005: the conditions in which they grew up, their size and the breeding index of their parents. He found that the parents' breeding index was the factor that had the greatest effect on whether a young horse began racing and on its chances of performing well during the three-year season.

In addition, Revold took tissue samples of the horses' posterior pelvic muscle (musculus glutaeus medius) and analysed the composition of muscle fibre types, the blood supply to the muscles and the activity of major muscle enzymes. His research showed that there were large individual variations in muscular characteristics amongst the horses in the trial, but that the oxidative capacity of the muscles (i.e. their aerobic combustion capacity) was generally lower amongst these horses than that previously seen in comparable breeds.

Revold also looked at how the muscular characteristics of 8 cold-blooded trotters changed during a two-year training period and how lactate transporters were positioned in the muscle tissue of these horses. In the course of the training period, Revold discovered that the composition of the muscle fibres changed into fibre types with a slower contraction speed and a higher oxidative capacity. The lactate transporter MCT1 was chiefly proven to be present in muscle fibre with a high oxidative capacity.

The research work was carried out at The Norwegian School of Veterinary Science (NVH) and at The Swedish University of Agricultural Sciences. Some analyses were also conducted at the University of Helsinki.

Tobias defended his doctoral thesis on 4th June 2011 at The Norwegian School of Veterinary Science. The thesis is entitled: "Performance predictors and muscle characteristics in young Norwegian-Swedish Cold-blooded Trotters."


Story Source:

The above story is based on materials provided by Norwegian School of Veterinary Science. Note: Materials may be edited for content and length.


Cite This Page:

Norwegian School of Veterinary Science. "Horse racing: The performance of young, cold-blooded trotters – heredity, environment and muscular characteristics." ScienceDaily. ScienceDaily, 27 June 2011. <www.sciencedaily.com/releases/2011/06/110627095415.htm>.
Norwegian School of Veterinary Science. (2011, June 27). Horse racing: The performance of young, cold-blooded trotters – heredity, environment and muscular characteristics. ScienceDaily. Retrieved March 3, 2015 from www.sciencedaily.com/releases/2011/06/110627095415.htm
Norwegian School of Veterinary Science. "Horse racing: The performance of young, cold-blooded trotters – heredity, environment and muscular characteristics." ScienceDaily. www.sciencedaily.com/releases/2011/06/110627095415.htm (accessed March 3, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Tuesday, March 3, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Rare Goblin Shark Found in Australia

Rare Goblin Shark Found in Australia

AFP (Mar. 3, 2015) A goblin shark, a rare sea creature described as an &apos;alien of the deep&apos; is found off Australia and delivered to the Australian Museum in Sydney. Duration: 01:25 Video provided by AFP
Powered by NewsLook.com
500 Snakes Surprise Construction Workers In Canada

500 Snakes Surprise Construction Workers In Canada

Newsy (Mar. 2, 2015) Hundreds of snakes, disturbed by a construction project, were relocated to a wildlife rescue association in Canada. Video provided by Newsy
Powered by NewsLook.com
Going Gluten-Free Could Get You A Tax Break

Going Gluten-Free Could Get You A Tax Break

Newsy (Mar. 2, 2015) If a doctor advises you to remove gluten from your diet, you could get a tax deduction on the amount you spend on gluten-free foods. Video provided by Newsy
Powered by NewsLook.com
Zookeepers Copy Animal Poses In Hilarious Viral Photos

Zookeepers Copy Animal Poses In Hilarious Viral Photos

Buzz60 (Mar. 2, 2015) Zookeepers at the Symbio Wildlife Park in Helensburgh, Australia decided to take some of their favorite animal photos and recreate them by posing just like the animals. Jen Markham (@jenmarkham) has the story. Video provided by Buzz60
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