Effect of including sweet potato (Ipomoea batatas Lam) meal in finishing pig diets on growth performance, carcass traits and pork quality

Animal Science Journal = Nihon Chikusan Gakkaihō
Silvana PietrosemoliMaria Jesús Villamide

Abstract

The partial replacement of a commercial concentrate at 10-20% and 15-30% (the first percentage of each dietary treatment corresponded to weeks 1-3 and the second to weeks 4-7 of the experiment, respectively) by sweet potato meal (SPM; 70% foliage: 30% roots) was evaluated for growth performance, carcass yield, instrumental and sensory pork quality using 36 commercial crossbred pigs (56.8 ± 1.3 kg initial body weight). Three dietary treatments were compared in a randomized complete block design. Most growth, carcass traits and pork quality variables were not affected by the SPM inclusion. Growth performance averaged 868 g/day and feed efficiency 0.24 kg/kg. However, feed intake increased 2.2% (P = 0.04) in pigs fed the 10-20% SPM diets, in a similar order of magnitude as the decrease in dietary energy. Despite an increase in gastrointestinal tract as a percent of hot carcass weight (+14.7%) (P = 0.03) with SPM inclusion, carcass yield averaged 69.4%. Conversely, decreases in loin yield (-4.2%) (P = 0.05), backfat thickness (-6.0%) (P < 0.01) and pork tenderness (-13%) (P = 0.02) were observed with 15-30% SPM inclusion. Results suggest that up to 20% SPM inclusion is a viable feed strategy for finishing pigs, easily replicable in...Continue Reading

References

Mar 1, 1997·Meat Science·R D WarnerM L Greaser
Jul 1, 2003·Meat Science·Katja Rosenvold, Henrik J Andersen
May 19, 2012·Journal of Environmental Management·K ReckmannJ Krieter
Nov 23, 2013·Animal Science Journal = Nihon Chikusan Gakkaihō·Keisuke MaedaMasakazu Irie
Mar 4, 2014·Journal of Animal Science and Biotechnology·Jan Erik Lindberg
Jul 23, 2014·Asian-Australasian Journal of Animal Sciences·Y X LiK S Seo

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