Studies on energy and nitrogen metabolism of pregnant and lactating sows and sucking piglets. 4. Chemical composition and energy content of the conception products, the reproductive organs as well as liveweight gains or losses of pregnant and lactating sows
Beyer, M.; Jentsch, W.; Hoffmann, L.; Schiemann, R.; Klein, M.
Archives of Animal Nutrition 46(1): 7-36
ISSN/ISBN: 1745-039X Accession: 002702099
Chemical composition and energy content of the conceptus, reproductive organs and liveweight changes of pregnant and lactating sows were estimated in relation to litter number (1, 2 and 4) and energy supply (120, 100 and 80% of NRC) and course of pregnancy and lactation. The results can be used as a basis for factorial derivation of energy requirements. Protein and energy retention in the conceptus are characterized exponentially by pregnancy and lactation stage.