[Performance dependence of the lysine requirement of fattening sows. 1. Effect of energy and amino acid consumption on fattening performance].
Seven variants with graduated energy and amino acid levels were tested at 105 growing sows in a live weight range between 30 and 120 kg. The weight increase and the energy expenditure showed a distinct dependence on the energy level of the ration and are mainly determined by the energy intake. Up to a live weight of 90 kg a 20% lysine over- or undersupply in comparison with the norm had no influence on the growth intensity of the animals. On the low and medium energy levels there was a tendency of superiority of the animals which received feeds rich in protein in the section between 90 and 120 kg. In the variant with a high energy level, however, a diminishing increase was detected in the last third of the fattening period in connection with the growing lysine level. The overall most suitable result was achieved in variant M 120 with a daily increase of 675 g and an energy expenditure of 2.04 kilo energetic feed units for pigs per kg increase.
D000596:Amino Acids / Q000008:administration & dosage*; D000818:Animals; D002149:Energy Intake; D004734:Energy Metabolism; D005260:Female; D008239:Lysine / Q000008:administration & dosage*; D009751:Nutritional Requirements; D013552:Swine / Q000254:growth & development*
D000596:Amino Acids; D008239:Lysine
Untersuchungen zum leistungsabhängigen Lysinbedarf von Mastsauen. 1. Mitteilung. Einfluss des Energie- und Aminosäurenverzehrs auf die Mastleistungen.