Bioavailability of methionine-hydroxy-analog free acid and S-methyl-methionine in the growing rat.

M. Hegedüs, S. Fekete, E. Andrásofszky, J. Tamás, L. Kövári

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5 Citations (Scopus)

Abstract

The biological utilization of DL-methionine (MET), DL-methionine-hydroxy-analog and DL-S-methyl-methionine-sulphonium-chloride (SMM) was tested in rat growth assay. Weight gain, feed efficiency, protein efficiency ratio (PER), net protein ratio (NPR) and net protein utilization (NPU) were applied as criteria. A test diet containing soybean meal as sole protein source was fortified with MET, MHA or SMM at 1.5 and 3.0 g/kg levels, respectively. All fortifications had a significant (p < 0.05) positive influence on weight gain, feed conversion and protein utilization. SMM showed the highest activity. MET and MHA were almost equally well utilized at 3.0 g/kg fortification level, however MHA proved slightly less efficient at 1.5 g/kg level than MET.

Original languageEnglish
Pages (from-to)145-150
Number of pages6
JournalActa veterinaria Hungarica
Volume40
Issue number3
Publication statusPublished - 1992

ASJC Scopus subject areas

  • veterinary(all)

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