Pig food research. Animal nutritionist adding crude glycerin (the dark liquid) to pig feed for the piglets at right. Crude glycerin,also called glycerol,is a sweet-tasting organic compound produced during biodiesel production. It has been shown to be an excellent source of energy for animals,but processing is needed to remove toxic components | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Ausmus, Stephen / US Department of Agriculture |
Bildgröße: | 4919 px × 3661 px |
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