Soybeans represent the world¡ãOs most important oilseed as a source of vegetable oil and protein. I is grown extensively in the United States, Brazil, Argentina and China. The beans can be processed into flour for food and meal for feeds. In China, Japan and Southeast Asian countries, soybeans are used primarily in the preparation of various food products. In the U.S. and Europe, soybeans are used mainly for production of oil and meal. There are hundreds of soybean cultivars found in different parts of the world but only dozens are in commercial cultivation.
In all livestock operations, the production performance depends very heavily on just how well the diet provided meets the nutritional requirements of the animals. There are many aspects of feed quality, feed manufacturing practice and feeding management that interact to secure success in this area but fundamental to the equation is the control of ingredient quality. The whole effort of feed formulation becomes futile if the nutrient composition and integrity of raw materials is not as assumed in the computer matrix.
This paper focusses on some of the basic and also advanced opportunities available to a typical oilseed crusher, primarily on a soybean processor, although many of the concepts discussed are applicable to others in the feed and grains processing industry.
The objectives are to examine some of the cost-reduction opportunities for an existing crushing and refining operation. As the products of these plants are generally sold in the commodity markets, processing plants are generally price-takers as opposed to a price-setter. It is assumed that any modern processor will produce a product of nearly identical quality and quantifiable characteristics, which is the nature of a commodity-based operation. Hence, we will focus on primarily on opportunities to reduce operational costs, although no discussion would be complete without some emphasis on new value-added opportunities. In addition, this paper will touch on some new technologies and market trends that are either already in place or expected to come into force soon.
A series of 4 experiments evaluated effects of mash conditioning temperature from a pellet mill or expander on performance of broilers fed pelleted diets containing spray-dried plasma (SDP). All experiments utilized Ross x Ross 308 male broilers randomly assigned to their respective treatments (6 or 10 broilers/pen and 8 or 10 pens/treatment). Treatments in Exp. 1 consisted of a control (0% SDP), SDP coated postpelleting, or SDP blended into the meal prepelleting. Experiment 2 and 3 included the same 3 treatments as in Exp. 1 but with additional treatments of SDP blended into the meal and conditioned at 90 or 95°C before pelleting. In Exp. 4, treatments consisted of a control (0% SDP) or SDP blended into the meal and pelleted (85°C conditioning temperature) or expanded (149°C final effective temperature) and then pelleted.