Evaluation of glycerol, a biodiesel coproduct, in grow-finish pig diets to support growth and pork quality

Journal of Animal Science
S J SchieckL J Johnston

Abstract

Crossbred pigs (n = 216; BW = 31.3 ± 1.8 kg) were used to determine the effects of long- and short-term feeding of crude glycerol on growth performance, carcass traits, and pork quality of grow-finish pigs. Pigs were blocked by initial BW, and pens within blocks were assigned randomly to 1 of 3 dietary treatments (24 pens; 9 pigs/pen). Dietary treatments were control, a corn-soybean meal-based diet (CON); long-term, CON + 8% glycerol fed throughout the experiment (LT); and short-term, pigs fed CON for the first 6 wk followed by CON + 8% glycerol fed during the last 8 wk of the experiment (ShT). Pigs fed LT had greater (P < 0.05) ADG, whereas pigs fed ShT tended (P < 0.10) to grow faster than CON (CON = 0.962 kg/d, LT = 0.996 kg/d, and ShT = 0.992 kg/d; SE = 0.01). Pigs assigned to LT had greater (P < 0.05) ADFI compared with CON, whereas ShT-fed pigs had similar ADFI to CON (CON = 2.78 kg/d, LT = 2.93 kg/d, and ShT = 2.86 kg/d; SE = 0.03). Gain:feed tended (P < 0.10) to be greater for CON- and ShT-fed pigs compared with LT-fed pigs (CON = 0.346, LT = 0.339, and ShT = 0.346; SE = 0.002). Hot carcass weight was greater (P < 0.05) for LT-fed pigs compared with CON, whereas ShT-fed pigs had HCW similar to both LT- and CON-fed pigs ...Continue Reading

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Citations

Sep 22, 2012·Journal of Agricultural and Food Chemistry·Tomé S SilvaPedro M Rodrigues
Mar 15, 2012·Biotechnology for Biofuels·Fangxia YangRuncang Sun
Mar 1, 2014·Water, Air, and Soil Pollution·M A Redmile-GordonP C Brookes
Dec 24, 2015·Animal : an International Journal of Animal Bioscience·F HernándezJ Madrid
Jul 6, 2014·Journal of Animal Physiology and Animal Nutrition·K G LisenkoL J Pereira
Aug 28, 2021·Animals : an Open Access Journal From MDPI·Silvia Martínez-MiróFuensanta Hernández

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