North Dakota State University * Dickinson Research Extension Center
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Landblom, D. G., W.W. Poland. North Dakota State University Dickinson Research Extension Center, Dickinson, ND. 1998 Journal of Animal Science Vol. 76 (suppl. 1), pp 67. Weanling pig response when naked oat and extruded field pea replace corn and soybean meal in pig starter diets.
Field pea (Pisum sativum subsp. hortense) and naked oat (Avena sativa) are two crops being grown in North Dakota for human and livestock consumption. Previous pig starter studies have determined that a portion of the soybean meal and corn could be replaced with extruded pea. Furthermore, all of the corn fraction in pig starter diets could be replaced with naked oat. The present study was designed to evaluate the complementary effect of combining field pea (var. Trapper) and naked oat (var. Paul) on pig performance and growth economics in a 28-day pig starter study. One-hundred-sixty, 5.95 kg, 19 day old, PIC weanling pigs were assigned to either nutrient dense corn or naked oat diets supplemented with either soybean meal or 20% extruded field pea using 4 pen replicates/treatment and 10 pigs/pen. Pigs were transferred to a segregated early weaning facility immediately after weaning and started on a 4-phase feeding program. Pea grain was processed using an Insta-Pro extruder. Prior to extrusion, pea grain was ground through a #4 full circle screen and 5% sunflower oil was added to reduce starch expansion. Temperature of the extruded pea material, as it left the extruding barrel was 135°. No significant differences were observed between treatments. Feeding a 100% naked oat/20% extruded pea blend resulted in pig response that was equal to feeding a conventional nutrient dense corn/SBM starter. Daily gain, daily feed intake, feed to gain ratio, and feed cost/lb of gain were, .75, .73, .73 and .75; 1.27, 1.18, 1.23 and 1.24; .59, .62, .59 and .61; $.35, $.34, $.34 and $.35 for the corn/SBM control, corn/20% extruded pea, naked oat/SBM and naked oat/20% extruded pea diets, respectively. We conclude no difference exists between feeding either corn or naked oat as grain sources or between either soybean meal or extruded pea as protein sources in the diets of weanling pigs.
Keywords: pig starter, naked oat, extruded field pea
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