Journal article

Purine derivative excretion and ruminal microbial yield in growing lambs fed raw and dry roasted legume seeds as protein supplements

P Yu, AR Egan, L Boon-ek, BJ Leury

Animal Feed Science and Technology | ELSEVIER | Published : 2002

Abstract

Urinary excretion of purine derivatives was used to estimate the microbial N supply to growing lambs in an experiment designed to examine the effect of raw and dry roasting whole lupin (lupinus angustifolius) seeds (WLS) and whole faba (vicia faba) beans (WFB) as protein supplements. Lambs were fed a fixed quantity of oat straw and alfalfa hay plus a daily legume seeds of either of the following: no legume seeds (CTRL), raw WLS, roasted WLS, raw WFB, or roasted WFB. Legume seeds were dry roasted at 150°C for 45 min. Diets were isonitrogenous 15.9% CP. In supplemented diets, about 55% of protein was supplied by WLS or WFB protein. Excretions of the purine derivative allantoin, uric acid plus ..

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