TY - JOUR T1 - Estimation of Microbial Protein Synthesis and Urinary Excretion of Purine Derivatives in Sheep Offered Alfalfa AU - , Ali Mirza-Aghazadeh AU - , Afshar Mirzaei-Aghsaghali AU - , Naser Maheri-Sis AU - , Abolfazl Asadi-Dizaji AU - , Abdulahad Shaddel JO - Journal of Animal and Veterinary Advances VL - 6 IS - 9 SP - 1140 EP - 1145 PY - 2007 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2007.1140.1145 UR - https://makhillpublications.co/view-article.php?doi=javaa.2007.1140.1145 KW - Microbial protein KW -purine derivative KW -alfalfa KW -sheep KW -urinary excretion KW -estimation AB - The aim of the present study was to estimate the Microbial N yield (MN), Efficiency of Microbial Protein Supply (EMNS), amounts of Purine absorbed (Pa) and Purine Derivatives excretion (PDe) in gezel sheep fed Hamedani (HAM) and Kareyonge (KAR) hays. Digestible Organic Matter fermented in the Rumen (DOMR) of KAR (0.473 kg d 1) was lower than that of HAM hay (0.713 kg d 1). The MN was higher for HAM (22.8 g d 1) hay, than that of KAR hay (15.1 g d 1); but EMNS was similar (32 g N kg 1 DOMR). The Pa and PDe contents of HAM hay were higher than that of KAR hay (31.6 vs. 20.8 and 28.5 vs. 19.5 mmol d 1, respectively). In conclusion,it seems that, HAM hay can have a higher inclusion than of KAR hay in diets for sheep because of greater MN and PDe. ER -