Featured Research

from universities, journals, and other organizations

Saturated fats do not yield better bacon

Date:
May 28, 2013
Source:
American Society of Animal Science
Summary:
Researchers have found that adding saturated fats to a pig's diet does not change pork firmness. Many pork producers have added saturated fats to counteract the effects of feeding distiller's dried grains with solubles.

A recent paper published in the Journal of Animal Science suggests producers may want to adjust pig diets when including distillers dried grains with solubles (DDGS). Some producers believe that feeding pigs saturated fats will undo the fat-softening effects of DDGS. Firmer fat means longer-lasting pork.

Related Articles


But researchers from the University of Illinois found that including saturated fats in DDGS diets makes no difference in fat quality.

The researchers formulated six corn-soybean meal diets to test the effects of saturated fat additives on carcass fat quality in pigs. Five of these diets contained DDGS.

According to the researchers, pork produced from pigs fed DDGS have reduced shelf life and increased susceptibility to oxidative damage. Oxidative damage affects texture, color, juiciness and the overall flavor of pork products.

"Distillers dried grains contain unsaturated fatty acids and those fatty acids are deposited into the fat of the animal," said Hans-Henrik Stein, study co-author and Department of Animal Science professor at the University of Illinois. "From a health standpoint, that's a good thing, but it can be a problem when producing pork products like bacon."

According to Stein, high levels of unsaturated fats make pork belly fat too soft to slice for bacon. To counteract this problem, producers have included saturated fats such as corn germ, beef tallow, palm kernel oil and glycerol in diets containing DDGS in order to make the fat firmer.

For this study, corn germ, beef tallow, palm kernel oil and glycerol were each added to a diet containing DDGS. The researchers compared the performance of pigs fed each of these diets to the performance of pigs fed a diet containing DDGS with no saturated fats added and a control diet containing corn-soybean meal but no DDGS.

Firmness of fat was tested by measuring the distance of "belly flop." This was done by draping the belly of the carcasses over a metal rod with the skin facing down. Ten centimeters below the rod, distance was measured between the two sides. The larger the distance was, the firmer the fat.

The researchers found that pigs fed the control diet containing no DDGS had greater belly flop distances than the pigs fed the other diets. There was no difference among the pigs fed the five diets containing DDGS.

This led researchers to conclude that adding saturated fats to diets containing DDGS has no effect on the fat quality of pigs.

Stein suggested that producers feeding high levels of DDGS reduce the amount fed in the last 3 to 4 weeks before harvest to avoid the softening of fat.


Story Source:

The above story is based on materials provided by American Society of Animal Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. J. W. Lee, D. Y. Kil, B. D. Keever, J. Killefer, F. K. McKeith, R. C. Sulabo, H. H. Stein. Carcass fat quality of pigs is not improved by adding corn germ, beef tallow, palm kernel oil, or glycerol to finishing diets containing distillers dried grains with solubles (DDGS). Journal of Animal Science, 2013; DOI: 10.2527/jas.2012-5328

Cite This Page:

American Society of Animal Science. "Saturated fats do not yield better bacon." ScienceDaily. ScienceDaily, 28 May 2013. <www.sciencedaily.com/releases/2013/05/130528143731.htm>.
American Society of Animal Science. (2013, May 28). Saturated fats do not yield better bacon. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2013/05/130528143731.htm
American Society of Animal Science. "Saturated fats do not yield better bacon." ScienceDaily. www.sciencedaily.com/releases/2013/05/130528143731.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Research on Bats Could Help Develop Drugs Against Ebola

Research on Bats Could Help Develop Drugs Against Ebola

AFP (Nov. 28, 2014) In Africa's only biosafety level 4 laboratory, scientists have been carrying out experiments on bats to understand how virus like Ebola are being transmitted, and how some of them resist to it. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
New Dinosaur Species Found in Museum Collection

New Dinosaur Species Found in Museum Collection

Reuters - Innovations Video Online (Nov. 27, 2014) A British palaeontologist has discovered a new species of dinosaur while studying fossils in a Canadian museum. Pentaceratops aquilonius was related to Triceratops and lived at the end of the Cretaceous Period, around 75 million years ago. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Tryptophan Isn't Making You Sleepy On Thanksgiving

Tryptophan Isn't Making You Sleepy On Thanksgiving

Newsy (Nov. 27, 2014) Tryptophan, a chemical found naturally in turkey meat, gets blamed for sleepiness after Thanksgiving meals. But science points to other culprits. Video provided by Newsy
Powered by NewsLook.com
Classic Hollywood Memorabilia Goes Under the Hammer

Classic Hollywood Memorabilia Goes Under the Hammer

Reuters - Entertainment Video Online (Nov. 26, 2014) The iconic piano from "Casablanca" and the Cowardly Lion suit from "The Wizard of Oz" fetch millions at auction. Sara Hemrajani reports. Video provided by Reuters
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