Daily and alternate-day supplementation of urea or biuret to ruminants consuming low-quality forage: II. Effects on site of digestion and microbial efficiency in steers1,2

Autor:	S. J. Falck, Christopher S. Schauer, T. A. Currier, S. J. Bartle, D. W. Bohnert
Rok vydání:	2004
Předmět:	business.industry Forage General Medicine Biology Straw Biuret test Biotechnology chemistry.chemical_compound Rumen Animal science chemistry Fodder Latin square Genetics Urea Animal Science and Zoology Digestion business Food Science
Zdroj:	Journal of Animal Science. 82:1518-1527
ISSN:	1525-3163 0021-8812
DOI:	10.2527/2004.8251518x
Popis:	Five steers (491 ± 21 kg BW) were used in an incomplete 5 × 4 Latin square with four 24-d periods to determine the influence of supplemental non- protein N (NPN) source and supplementation frequency (SF) on nutrient intake and site of digestion in steers consuming low-quality grass straw (4% CP). Treat- ments (TRT) included an unsupplemented control and a urea- or biuret-containing supplement placed directly into the rumen daily (D) or every other day (2D) at 0700. The NPN treatments were formulated to provide 90% of the estimated degradable intake protein require- ment. Daily TRT were supplemented CP at 0.04% of BW/d, whereas the 2D TRT were supplemented at 0.08% of BW every other day. Therefore, all supple- mented TRT received the same quantity of supplemen
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4cb4527e87db4992f1f67d13fb14e5fc https://doi.org/10.2527/2004.8251518x Zobrazit plný text záznamu