Digestible lysine levels in low-protein diets supplemented with synthetic amino acids for nursery, growing, and finishing barrows

Digestible lysine levels in low-protein diets supplemented with synthetic amino acids for nursery, growing, and finishing barrows

To investigate the effect of lysine level in low-protein diets (LPD) an experiment was conducted with 36 barrows fed 174,140 and 118 g/kg of crude protein (CP), and three digestible lysine levels. Low-protein diets were supplemented with crystalline amino acids (AA) to the same concentration as in t...

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Veröffentlicht in:Irish journal of agricultural and food research 2012-01, Vol.51 (1), p.33-44
Hauptverfasser: Figueroa, J.L., Estrada, J., Zamora, V., Cordero, J.L., Sánchez-Torres, M.T., Nieto, R., Copado, J.M.F.
Format: Artikel
Sprache:eng
Schlagworte:
Animal science
Body weight
Carcass characteristics
Diet
Finishing
Low protein diets
Nitrogen
Phosphorus metabolism
Puns
Swine
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Zusammenfassung:To investigate the effect of lysine level in low-protein diets (LPD) an experiment was conducted with 36 barrows fed 174,140 and 118 g/kg of crude protein (CP), and three digestible lysine levels. Low-protein diets were supplemented with crystalline amino acids (AA) to the same concentration as in the standard CP diet. Growth performance, carcass characteristics and plasma urea nitrogen concentration were evaluated. In nursery pigs, the addition of lysine to LPD quadratically increased backfat thickness (BF; P
ISSN:0791-6833