Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Establishing nutritional value in copra and palm products fed to pigs

05.06.2013
Products derived from coconuts and oil palm trees are the primary protein sources in swine diets in parts of Africa, southeast Asia, South America, and Europe. New research from the University of Illinois is helping to establish the nutritional value of these products.

"In many countries in the world, and particularly in the tropics, copra and palm kernel products are the main protein sources for livestock. You also see palm kernel products and copra products fed throughout Latin America and in some countries in Europe," said Hans H. Stein, a U of I professor in animal sciences. "However, there are no recent values on energy and amino acid digestibility so we wanted to get those established."

Copra meal is produced when coconut oil is removed by solvent extraction from the meat of the coconut. Similarly, palm kernel meal is produced by solvent extraction of oil from oil palm seeds. When palm oil is instead removed by mechanical expelling, the resulting product is called palm kernel expellers.

Stein's research team conducted two studies. In the first, they determined that copra meal contains 22 percent crude protein whereas palm kernel meal and palm kernel expellers contain about 14 percent crude protein. The standard used for comparison was soybean meal, which contains about 47 percent crude protein. The difference is largely the result of the high fiber content of copra and palm kernel products.

The standardized ileal digestibility (SID) of crude protein and amino acids was also determined and compared with values obtained for soybean meal.

"The SID was between 10 and 20 percentage units less for many of the amino acids, in particular for lysine and threonine," Stein said. However, the SID of methionine in copra and palm kernel products was only 5 to 10 percent less than that of soybean meal.

In the second experiment, the concentrations of digestible and metabolizable energy in copra meal, palm kernel meal, and two sources of palm kernel expellers were determined. Copra meal contained 3,692 kcal/kg digestible energy, palm kernel meal 2,905 kcal/kg, Asian palm kernel expellers 3,304 kcal/kg, and African palm kernel expellers 2,994 kcal/kg. Metabolizable energy concentrations in copra meal, palm kernel meal, Asian palm kernel expellers, and African palm kernel expellers were 3,496, 2,766, 3,184, and 2,883 kcal/kg, respectively.

These values were 15 to 30 percent less than the concentrations of digestible and metabolizable energy in soybean meal. Stein said that the reduced energy concentration in copra and palm kernel products, like the reduced protein concentration, is due to the high fiber concentration in these ingredients.

"We have high concentrations of NDF, in particular, in the palm kernel products," Stein said. "That limits the inclusion rate in diets for pigs. And that is the biggest drawback to these ingredients."

Stein added that establishing inclusion rates in diets for weanling pigs and for growing-finishing pigs and sows is a possible direction for future research.

The study, "Amino acid digestibility and concentration of digestible and metabolizable energy in copra meal, palm kernel expellers, and palm kernel meal fed to growing pigs," was published in the Journal of Animal Science and was co-authored by Won Seok Ju, a former visiting scholar in the Stein Monogastric Nutrition Laboratory at U of I, and Rommel Sulabo of the National University of the Philippines. The manuscript is available at http://www.journalofanimalscience.org/content/91/3/1391.full.

Stephanie Henry | EurekAlert!
Further information:
http://www.illinois.edu

More articles from Agricultural and Forestry Science:

nachricht Raiding the rape field
23.05.2018 | Julius-Maximilians-Universität Würzburg

nachricht New technique reveals details of forest fire recovery
17.05.2018 | DOE/Brookhaven National Laboratory

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>