Enzymatically Digested Food Waste Altered Fecal Microbiota But Not Meat Quality and Carcass Characteristics of Growing-Finishing Pigs

• Published in: Animals (Basel) 2019-11, Vol.9 (11), p.970
• Main Authors: Jinno, Cynthia, Saelao, Perot, Maga, Elizabeth A, King, Annie, Morash, Dan, Zicari, Steve, Yang, Xiang, Liu, Yanhong
• Format: Article
• Language: English
• Subjects: Abundance; Amino acids; Animal experimentation; Body weight; Carcasses; Consumers; Corn; Diet; Docosahexaenoic acid; Eicosapentaenoic acid; Enzymes; Family; Fatty acids; Fecal microflora; Feces; Feeding; Finishing; Food; Food and nutrition; Food production; Food waste; Food wastes; Health aspects; Hogs; Human populations; Laboratories; Lachnospiraceae; Landfill; Legal fees; Meat; Meat quality; Microbiomes; Microbiota; Microbiota (Symbiotic organisms); Moisture content; Nutrients; Omega 3 fatty acids; Pens; Physiological aspects; Pork; Recycling; Relative abundance; RNA; rRNA 16S; Soybeans; Sustainability; Sustainable agriculture; Sustainable development; Swine; Unsaturated fatty acids
• ISSN: 2076-2615; 2076-2615
• DOI: 10.3390/ani9110970

This experiment aimed to evaluate meat quality, fatty acid profile in back-fat, and fecal microbiota of growing-finishing pigs fed with liquid enzymatically digested food waste. Fifty-six crossbred pigs (approximately 32.99 kg body weight) were assigned to one of two treatments with seven replicate pens and four pigs per pen. Pigs were fed with control (corn-soybean meal diets) or food waste from d 0 to 53, while all pigs were fed with the control diet from d 53 to 79. The 16S rRNA sequencing was used to analyze microbiota of feces collected on d 0, 28, 53, and 79. Meat quality and carcass characteristics were measured in one pig per pen at the end of the experiment. Pigs fed with food waste contained more ( < 0.05) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in back-fat. Feeding food waste increased ( < 0.05) the relative abundances of and , but decreased ( < 0.05) the relative abundances of and in feces on d 29 or d 53. In conclusion, feeding enzymatically digested food waste did not affect pork quality, but provided more beneficial fatty acids to pork consumers and altered the fecal microbiota in growing-finishing pigs.