<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">King, D.</style></author><author><style face="normal" font="default" size="100%">Fredrickson, E. L.</style></author><author><style face="normal" font="default" size="100%">Estell, R. E.</style></author><author><style face="normal" font="default" size="100%">Havstad, KM</style></author><author><style face="normal" font="default" size="100%">Wallace, J. D.</style></author><author><style face="normal" font="default" size="100%">Murray, L.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of Flourensia cernua ingestion on nitrogen balance of sheep consuming tobosa</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">JRN</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1996</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">bibliography/497.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">331-335</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;i&gt;Flourensia cernua &lt;/i&gt;DC. (tarbush) is a deciduous shrub with potential as a high-protein forage source for livestock. Twenty-four Polypay x Rambouillet wethers housed in metabolism crates were used to evaluate tarbush as a N source for sheep fed a low quality grass diet. Treatments were 100% ground tobosa grass &lt;i&gt;(Pleuraphis mutica &lt;/i&gt;Buckl.) or tobosa substituted with 10, 20, or 30% whole pre-bloom tarbush leaves &lt;i&gt;(n &lt;/i&gt;= 5) or 26% ground alfalfa &lt;i&gt;(n &lt;/i&gt;= 4, &lt;i&gt;Medicago sativa &lt;/i&gt;L.) on a dry matter basis (dmb). Sheep were fed &lt;i&gt;ad libitum &lt;/i&gt;for 11 days, after which feed was restricted to 1 % (dmb) of body weight for 11 days to reduce sorting and maintain uniform intake. Apparent dry matter digestibility was not improved &lt;i&gt;(P &lt;/i&gt;= 0.2646) with tarbush or alfalfa. Fecal N was similar &lt;i&gt;(P = &lt;/i&gt;0.1626), but urinary N varied &lt;i&gt;(P = &lt;/i&gt;0.0008) among treatments. Apparent N digestibility differed &lt;i&gt;(P = &lt;/i&gt;0.0042) among treatments (43, 46, 50, 56, and 63% for sheep consuming 0, 10, 20, or 30% tarbush or alfalfa, respectively). All treatments resulted in similar &lt;i&gt;(P = &lt;/i&gt;0.1569) but negative N retentions (-2.4, -2.2, -2.8, -2.0, and -1.5 g day&lt;sup&gt;-1&lt;/sup&gt; for sheep consuming 0, 10, 20, or 30% tarbush or alfalfa, respectively). Serum clinical profiles (day 22) confirmed all sheep were nutritionally stressed, but did not indicate toxicosis. Although neither tarbush nor alfalfa N compensated for the low quality basal diet, N from 30% tarbush was utilized with similar efficiency to alfalfa N. The major impediment for using tarbush as a N source appeared to be low palatability.</style></abstract><accession-num><style face="normal" font="default" size="100%">LTER.1996-91406</style></accession-num></record></records></xml>