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Interpretive Summary: Sustainable pig diets: partial grain replacement with former food products and its impact on meat quality

By: Marco Tretola, Sharon Mazzoleni, Paolo Silacci, Sébastien Dubois, Cristina Proserpio, Ella Pagliarini, Cristian E M Bernardi, Luciano Pinotti, Giuseppe Bee

Pigs are ideal species to convert food losses, also named former food products (FFPs), into animal proteins. The present study investigated the impact of incorporating sugary and salty FFPs into the diets of growing and finishing pigs on meat quality and its sensory characteristics. Our study showed that, while technological meat quality remained largely unaffected, the dietary treatments led to slight alterations of meat and backfat fatty acids profile. Moreover, a panel test for sensory analyses revealed that loins from both the sugary and salty ingredients-fed pigs were perceived as sweeter, and loins from pigs fed salty ingredients were noted for increased tenderness, intense pork aroma, and flavor. Overall, FFPs inclusion into pig diets had no detrimental effects on technological or nutritional aspects of the meat, confirming their potential use as alternative animal feed.

Read the full article in the Journal of Animal Science.