Untersuchungen zur Bestimmung der endogenen N-Sekretion im Dünndarm bei Schweinen

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Abstract
Isotope dilution was used to determine endogenous N-secretion in 3 pigs (live weight 15-27 kg). They were provided with simple cannulae at the end of the small intestines. The test animals received a single dose of a semi-synthetic ration with 15N-labeled dried curds as sole source of protein. The passage rate to the ielum (ascertained with 51Cr2O3) was 70% in 24 h. During the 24 h, test period the amount of endogenous N in the ileum chyme was 1.11 g (56.6 mg/kg live weight). Of that, 60% were absorbed in the chyme at the end of the small intestines.