TY  - JOUR
T1  - Effect of Urea Treatment on Chemical Composition and Digestion of <I>Cenchrus ciliaris</I> and <I>Cynodon dactylon</I> Hays and <I>Zea mays</I> Residues
AU - , G. R. Ramirez AU - , J. C. Aguilera Gonzalez AU - , G. Garcia Diaz AU - , A. M. Nunez Gonzalez 
JO  - Journal of Animal and Veterinary Advances
VL  - 6
IS  - 8
SP  - 1036
EP  - 1041
PY  - 2007
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2007.1036.1041
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2007.1036.1041
KW  - Cenchrus ciliaris hay
KW  -Cynodon dactylon hay
KW  -corn stover
KW  -urea ammoniation
KW  -chemical composition
KW  -effective degradability
AB  - Buffelgrass (<I>Cenchrus ciliaris</I>), bermudagrass (<I>Cynodon dactylon</I>) hays, corn stover and corn cobs (<I>Zea mays</I>), with a moisture content of 50%, were ammoniated with feed grade urea at 0, 4.5 and 6.0% DM. Ammonia-treated forages were stored in plastic bags during 21 days. Crude Protein (CP), Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), Acid Detergent Lignin (ADL), hemicellulose and cellulose were determined. The rate and extent of dry matter and NDF loss was estimated using the nylon bag technique. Rumen cannulated PelibueyxRambouillet sheep were used to incubate the nylon bags. During the trial, sheep were fed <I>ad libitum</I> 70% sorghum Sudan hay and 30% alfalfa hay. The CP content in buffelgrass hay (4.4, 9.9 and  16.3%,  respectively)  bermudagrass  hay  (6.2, 13.8, 22.9%), corn stover (7.4, 12.3, 15.6%) and corn cobs (3.0, 11.2, 16.7%) increased as urea treatment augmented. However, NDF was reduced as treatment increased (80.6, 74.7, 75.8; 79.9, 77.8, 75.5; 75.4, 66.0, 69.3; 92.5, 85.6 and 88.4%, respectively). Similar, pattern as NDF was found in hemicellulose content. Effective Degradability of Dry Matter (EDDM) and NDF (EDNDF) in buffelgrass hay (26, 42, 31; 20, 33 and 24%, respectively) and corn cobs 23, 36, 32; 25, 34, 31%, respectively) increased quadratically (p< 0.01) as urea treatment augmented. Whereas, EDDM and EDNDF in bermudagrass hay (30, 38, 39; 25, 32, 33%, respectively) and corn stover (42, 48, 53; 38, 41, 45%, respectively) increased linearly (p< 0.01). Urea ammoniation  altered  the chemical composition and  digestibility  of  forages  improving  their  nutritive  value.
ER  -