2023
Evaluating the use of gums and soapstocks in swine diets
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Contributor/Checkoff:
United Soybean Board
Category:
Feed
Keywords:
Animal nutritionEnergyMacronutritional bundleProcessing co-productsSwine
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Bob Goodband, Kansas State University
Co-Principal Investigators:
Project Code:
23-107-D-F-1-G
Contributing Organization (Checkoff):
United Soybean Board
$152,793
Institution Funded:
Kansas State University
$152,793
Brief Project Summary:
Soybean meal (SBM) is a fundamental protein source in animal diets, and as a result, SBM processing has been extensively outlined in past literature. Despite previous research, the industry has not fully characterized specific areas of the manufacturing process such as the nutritional value of processing by-products (gums, phospholipids, etc.). Past literature has shown the potential for by-products to serve as an affordable energy source for swine due to their residual oil content. However, more research is needed to evaluate the composition of gums and soapstock and their inclusion in swine diets. This proposal aims to understand the analytical composition and variation in by-products from soybean processing plants throughout the United States as well as investigate how their potential inclusion in swine diets influences nursery pig growth performance. With an expected increase in soybean crushing facilities in the next 5 years, more by-products will need to find a potential market. Understanding the composition and use of gums and soapstocks in swine diets could potentially assist in finding new uses for these two by-products. Overall, this project will generate information on t
Information And Results
Project Summary

Project Objectives

Project Deliverables

Progress Of Work

Final Project Results

This project had 3 deliverables, 1) a literature review of soybean meal processing including steps where by-products are produced and if they are added back to soybean meal. 2) A survey of 13 soy crush plants for analysis of the chemical composition of soybean meal, gums, soapstocks. 3) A nursery pig growth trial evaluating soybean meal with added gums and soapstocks on growth performance, dry matter digestibility and fecal dry matter. All portions of the project have been completed on time and are included in the attachments.

Benefit To Soybean Farmers

The results of these studies indicate that soybean meal "add-backs" like gums and soapstocks do not negatively affect pig growth performance and may offer some potential to improve feed efficiency. This indicates that soybean meal "add backs" can be utilized in soybean meal and do not risk or adversely affect pig growth. The chemical composition of soybean meal gums and soapstocks vary significantly among soy crush plants.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.