پردیس کشاورزی و منابع طبیعی دانشگاه تهران Iranian Journal of animal Science 2008-4773 47 1 2016 05 21 Effect of reducing metabolizable protein with added rumen-protected lysine and methionine on the performance of the pregnant Afshari ewes Effect of reducing metabolizable protein with added rumen-protected lysine and methionine on the performance of the pregnant Afshari ewes 89 102 61673 10.22059/ijas.2016.61673 FA Seyyed Saeid Mousavi Ph.D. Student, Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran Hamid Amanlou Professor, Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran Ali Nikkhah Professor, Department of Animal Science, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran Ali Moustafa Tehrani Assistant Professor, Department of Nutrition and Physiology, Animal Science Research Institute, Karaj, Iran Hamid Reza Mirzaei Alamouti Assistant Professor, Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran Journal Article 2015 10 18 The aim of this study was to investigate the effect of reducing metabolizable protein with rumen-protected Lysine and Methionine in diet during the last 5 weeks of gestation on performance and blood parameters of Afshari ewes and lambs. Twenty five mature (once lambing) ewes in a Unbalanced complete randomized design fed with diets containing low metabolizable protein but containing rumen-protected lysine and methionine (LMP + LMRP) and high (HMP), respectively, 20 percent less than and equal to recommendations of NRC (2007), The results showed no difference between the treatments regarding dry matter intake, body weight of ewes at the end of gestation, body weight changes from start of the experiment until the birth, body weight after lambing and 20 days post lambing (p>0.05). Decline changes in Body weight at lambing was increased in the HMP group rather than LMP+LMRP group and the difference was tend to significant (p The aim of this study was to investigate the effect of reducing metabolizable protein with rumen-protected Lysine and Methionine in diet during the last 5 weeks of gestation on performance and blood parameters of Afshari ewes and lambs. Twenty five mature (once lambing) ewes in a Unbalanced complete randomized design fed with diets containing low metabolizable protein but containing rumen-protected lysine and methionine (LMP + LMRP) and high (HMP), respectively, 20 percent less than and equal to recommendations of NRC (2007), The results showed no difference between the treatments regarding dry matter intake, body weight of ewes at the end of gestation, body weight changes from start of the experiment until the birth, body weight after lambing and 20 days post lambing (p>0.05). Decline changes in Body weight at lambing was increased in the HMP group rather than LMP+LMRP group and the difference was tend to significant (p https://ijas.ut.ac.ir/article_61673_7f15214dfb5b335b1571c6eeb3b3146b.pdf