title: [Lysine requirement of fattening sows depending on their performance. 2. Relations between energy consumption and live weight increase].
abstract: 105 growing sows in the live weight range were fed with 7 test rations with graduated energy and amino acid levels. The growth intensity was very much influenced by the daily energy consumption. On the basis of regression analysis the following linear relation between daily weight increase (y in g per kg live weight0,75) and the daily energy consumption (x in energetic feed units for pigs per kg live weight0,75) was calculated: y = -13,79 + 0,7037 x (r = 0,84, sb -0,0295). The interpolation with regard to live weight balance resulted in a maintenance requirement of 19,8 energetic feed units for pigs resp. 70 kcal net energy fat for pigs per kg live weight0,75. The methods of assessment chosen showed an increase of the energy requirement per 100 g additional live weight increase per day of a constant amount, independent of the live weight, of 142 energetic feed units for pigs resp. 497 kcal net energy fat for pigs.
mesh_terms: D000596:Amino Acids; D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D002151:Calorimetry; D004734:Energy Metabolism; D005260:Female; D008239:Lysine; D013552:Swine
chemical_list: D000596:Amino Acids; D008239:Lysine
vernacular_title: Untersuchungen zum leistungsabhängigen Lysinbedarf von Mastsauen. 2. Mitteilung. Die Beziehungen zwischen Energieverzehr Lebendmassezunahme.