TY - JOUR T1 - Ruminal and Post-Ruminal Protein Disappearance of Chemically Treated Alfalfa Silage and the Effect of the Silage Containing Diets on Performance of Holstien Lactating Dairy Cows AU - Tavallaei, J. AU - Vakili, A. AU - Mesgaran, M. Danesh JO - Journal of Animal and Veterinary Advances VL - 9 IS - 21 SP - 2691 EP - 2694 PY - 2010 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2010.2691.2694 UR - https://makhillpublications.co/view-article.php?doi=javaa.2010.2691.2694 KW - degradability KW -urea KW -formic acid KW -Alfalfa silage KW -ASFU KW -glucose AB - Alfalfa hay (30% dry matter) was ensiled as untreated (AS) or treated with formic acid (ASF, 24 mL kg-1 DM) or formic acid+urea (ASFU, 24 mL and 4 g kg-1 DM, respectively). Disappearance of protein and dry matter from the samples was determined using the in situ mobile bag procedure. In lactation trail, 12 Holstein cows received diets containing 28.5% AS or ASF or ASFU, 30% corn silage, 7% alfalfa hay and 34.5% concentrate for 8 weeks. The chemically processed applied caused a significant decrease in ruminal and an increase in post-ruminal dry matter disappearances of the silages evaluated (p<0.05). Dry matter intake and yields of milk did not influenced by the experimental diets. Milk urea nitrogen concentration of the cows received the diet containing ASFU were significantly lower than the others (p<0.05). Blood plasma concentration of glucose was increased when the diet containing of ASF was fed to the animals (p<0.05) compared with the others. ER -