Nitrogen metabolism in forage-fed ruminants

What is it about?

In this study, net portal release of dietary and intestinal available amino acids (AA) varied with dry matter intake (DMI). However, the pattern of variation was not uniform among AA and across treatments and did not follow the same pattern of change in DMI. This may be because of the impact of other factors such as the nature and amount of available substrates (AA and energy) in the gut as well as the AA/energy balance across treatments. These factors should be taken into account when building predictive models for portal absorption of AA in ruminants.

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Why is it important?

. These results indicated that DMI affects net recovery of AA available in the small intestine of mature sheep. These data may be incorporated into nutritional models for accurately predicting nutrient delivery to post-absorptive tissues, hence predicting animal performance.