@article{Astigarraga_1994,<br/><span class="tab"></span> title={Effect of level of nitrogen fertilization and protein supplementation on herbage utilization by grazing dairy cows. II. Faecal and urine nitrogen excretion},<br/><span class="tab"></span> volume={43},<br/><span class="tab"></span> ISSN={0003-424X},<br/><span class="tab"></span> url={http://dx.doi.org/10.1051/animres:19940359},<br/><span class="tab"></span> DOI={10.1051/animres:19940359},<br/><span class="tab"></span> number={3},<br/><span class="tab"></span> journal={Annales de Zootechnie},<br/><span class="tab"></span> publisher={EDP Sciences},<br/><span class="tab"></span> author={Astigarraga,<br/><span class="tab"></span> L. and Peyraud,<br/><span class="tab"></span> JL and Le Bars,<br/><span class="tab"></span> M.},<br/><span class="tab"></span> year={1994},<br/><span class="tab"></span> pages={292–292} }