Abstract
Two experiments were conducted to evaluate the effects of XFE Liquid Energy (XFE Products, Des Moines, IA) and choice white grease (CWG) on growth performance of nursery pigs. In Exp. 1, a total of 150 nursery pigs (TR4 × 1050, initially 27.0 lb) were used in a 21-d experiment. Pens of pigs were balanced by initial BW and randomly allotted to 1 of 5 dietary treatments with 6 replications per treatment. The 5 dietary treatments included a control corn-soybean meal-based diet, the control diet with 2 or 4% CWG, or the control diet with 2 or 4% liquid energy. Overall (d 0 to 21), pigs fed diets containing liquid energy had improved ADG (P < 0.02) and ADFI (P < 0.04) with no change in F/G compared with control pigs. Pigs fed CWG had greater (P < 0.04) ADG and improved (P < 0.01) F/G compared with pigs fed the control diet. The responses tended to be linear (P < 0.09) for liquid energy and were linear (P < 0.05) for CWG. Finally, pigs fed CWG had improved (P < 0.02) F/G compared with pigs fed liquid energy.
Highlights
Adding energy to nursery diets via fat sources is a common practice
Two experiments were conducted to evaluate the effects of XFE Liquid Energy (XFE Products, Des Moines, IA) and choice white grease (CWG) on growth performance of nursery pigs
Overall (d 0 to 21), pigs fed diets containing liquid energy had improved ADG (P < 0.02) and ADFI (P < 0.04) with no change in F/G compared with control pigs
Summary
Two experiments were conducted to evaluate the effects of XFE Liquid Energy (XFE Products, Des Moines, IA) and choice white grease (CWG) on growth performance of nursery pigs. Overall (d 0 to 21), pigs fed diets containing liquid energy had improved ADG (P < 0.02) and ADFI (P < 0.04) with no change in F/G compared with control pigs. Pigs fed CWG had greater (P < 0.04) ADG and improved (P < 0.01) F/G compared with pigs fed the control diet. Pigs fed CWG had decreased ADG (P < 0.05) and ADFI (P < 0.02) compared with the pigs fed diets without CWG. ADG was improved in one experiment for pigs fed liquid energy, no differences were found in feed efficiency. These trials indicate additional research is needed to understand the effects of XFE liquid energy in nursery diets
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