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Influence of various lysine and threonine levels in feed mixtures for lactating sows on milk quality and piglet growth

Author

Listed:
  • J. Bojčuková

    (Research Institute of Animal Production, Prague-Uhříněves, Kostelec nad Orlicí Workplace, Czech Republic)

  • F. Krátký

    (Research Institute of Animal Production, Prague-Uhříněves, Kostelec nad Orlicí Workplace, Czech Republic)

Abstract

The quality of produced milk and piglet growth were investigated in three groups of lactating Large White sows fed three mixtures containing different levels of lysine, threonine and crude protein. Piglets were weighed immediately after delivery and then in weekly intervals. At the age of 21 days the litter weight was the highest in group B (67.96 kg; P < 0.05), i.e. in the group with the highest dietary content of amino acids. Milk from lactating sows was sampled and analysed. An increased level of dietary amino acids became evident in milk at the first milk sampling (i.e. three days after delivery), when the content of lysine and threonine in milk was significantly the highest in group B (lysine 11.96 g/16 g N; threonine 6.72 g/16 g N; P < 0.05). The level of amino acids in milk and the differences between groups diminished in the following samplings. The changes of crude protein in milk were similar.

Suggested Citation

  • J. Bojčuková & F. Krátký, 2006. "Influence of various lysine and threonine levels in feed mixtures for lactating sows on milk quality and piglet growth," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 51(1), pages 24-30.
    • Handle: RePEc:caa:jnlcjs:v:51:y:2006:i:1:id:3905-cjas
    DOI: 10.17221/3905-CJAS
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