Featured Research

from universities, journals, and other organizations

Exercise during gestation might affect future fertility

Date:
March 12, 2013
Source:
American Society of Animal Science
Summary:
Researchers have found that exercising pregnant sows could affect ovarian development in their fetuses. Fetuses from exercised sows had greater cell proliferation in their ovaries.

A short walk around the barn might improve the future fertility of Yorkshire pigs. According to research presented by Samantha Kaminski, a graduate student at North Dakota State University, swine fetuses showed significant ovarian development after their mothers exercised.

Related Articles


Kaminski and fellow researchers already knew that uterine blood flow could affect blood flow to the ovaries of developing fetuses. To further study the relationship between uterine blood flow and ovary development, Kaminski and fellow researchers designed an experiment to increase blood flow through exercise.

The team selected 15 female pigs and bred them to a boar. They then exercised the pregnant sows between days 40 and 105 of gestation. For exercise, the sows were walked for 30 minutes a day, three times a week. The researchers used this exercise regimen with two generations of pigs.

With the first generation, Kaminski and fellow researchers studied ovaries from neonate piglets, adolescent piglets and gilts at six months of age. They looked at ovarian weight, cell proliferation and types of developing cells to compare how exercise might affect ovarian development.

They found that the effects of exercise seemed to decrease as the female pigs grew. In an analysis of heavier weight neonates, Kaminski saw more cell proliferation in the group from the exercised sows.

The adolescent pigs showed no differences in ovarian weight or overall cell proliferation. Kaminski did find a difference in the types of cells in the ovaries between treatment groups. The pigs from exercised sows had a greater proliferation of cells in the antral healthy follicles. The proliferation of antral healthy follicles has been used in previous studies as an indicator of healthy ooyctes and follicles.

With the second generation, the researchers studied the ovaries from developing fetuses on day 94 of gestation. Though she found no difference in fetal ovarian weight, Kaminiski did see more cell proliferation in the ovaries of fetuses from the exercised sows.

Kaminski acknowledged that it would be impractical to walk individual sows in a production setting. She said the exercise regimen of 30 minutes of exercise three times a week could be compared with any "moderate" amount of movement.

"This would be very similar to what a group house setting would be like for sows," said Kaminski.

Kaminski recommended future studies to determine if cell proliferation is a good indicator of future fertility. She would also like to know why there were not significant differences in ovarian weight or cell proliferation in neonatal and adolescent pigs.

Kaminski's abstract was titled "Impact of maternal exercise on ovarian development in the pig." The presentation was part of the Graduate Student Competition at the 2013 American Dairy Science Association Midwest Branch / American Society of Animal Science Midwest Section Meeting.


Story Source:

The above story is based on materials provided by American Society of Animal Science. The original article was written by Madeline McCurry-Schmidt. Note: Materials may be edited for content and length.


Cite This Page:

American Society of Animal Science. "Exercise during gestation might affect future fertility." ScienceDaily. ScienceDaily, 12 March 2013. <www.sciencedaily.com/releases/2013/03/130312102551.htm>.
American Society of Animal Science. (2013, March 12). Exercise during gestation might affect future fertility. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2013/03/130312102551.htm
American Society of Animal Science. "Exercise during gestation might affect future fertility." ScienceDaily. www.sciencedaily.com/releases/2013/03/130312102551.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Texas Nurse Nina Pham Cured of Ebola

Texas Nurse Nina Pham Cured of Ebola

AFP (Oct. 25, 2014) — An American nurse who contracted Ebola while caring for a Liberian patient in Texas has been declared free of the virus and will leave the hospital. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) — The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) Video provided by AP
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

 

Health & Medicine

Mind & Brain

Living & Well

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