Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8502418 | Meat Science | 2018 | 8 Pages |
Abstract
The effects of dietary methionine (Met) supplies above growth requirements on tissue biology and pork quality were studied. At 70â¯kg, 45 crossbred pigs were fed a control (CONT) diet adequate in Met (0.22% Met) up to 105â¯kg. For the last 14â¯days before slaughter, pigs were fed with the CONT diet or with diets where the Met level was increased to Met3 (0.66% Met) or Met5 (1.10% Met). Growth performance and carcass composition did not change with the treatment. Pigs fed the Met5 treatment displayed lower TBARS and higher glutathione levels (Pâ¯â¤â¯.05), along with higher ultimate pH (Pâ¯<â¯.01) and lower drip, lightness and hue (Pâ¯â¤â¯.10) in the longissimus muscle, compared to the CONT and Met3 pigs. Extra-dietary Met improved ham's technological quality in the Met3 and Met5 groups (Pâ¯â¤â¯.05). Thus, dietary Met supplementation improves pork quality without impairing growth or carcass traits.
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Authors
Bénédicte Lebret, Dolores I. Batonon-Alavo, Marie-Hélène Perruchot, Yves Mercier, Florence Gondret,