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SunFlower Seeds as a Fat Source in Sow Gestation and Lactation Diets¹

South Dakota State University, Brookings 57007

Abstract

The crossbred sows used in this experiment were fed 0, 25 or 50% ground, high oil sun flower seeds in diets equalized in N, lysine, minerals and vitamins. The diets were fed at a level of 2.27 kg daily from d 100 of gestation to farrowing and ad libitum throughout a 14-d lactation. Sunflower seeds had no affect on sow reproductive performance. Diets containing 50% sunflower seeds were less palatable initially, but there were no differences in consumption of diets during lactation. Milk samples collected at 1 and 2 wk of lactation increased linearly (P<.01) in percentage fat with increasing dietary levels of sunflower seeds. However, piglet weaning weight and percentage survival were unaffected. Plasma glucose concentrations of piglets at 24 h did not differ among treatments. Plasma glucose at 24 h was significantly higher in piglets that survived to 14 d than in those that died between d 1 and 14. Although reproductive performance was unaffected by feeding diets of 25 or 50% sunflower seeds, feeding 50% sunflower seed diets should not be recommended because of the initial consumption problems.

¹ Published with the approval of the Director of the South Dakota Agr. Exp. Sta. as Publication No. 1796 of the Journal Series.

² Present address: Seeco Inc., Willmar, MN 56201.

³ Dept. of Anim. Sci.