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Articles by Ali Mirza-Aghazadeh
Total Records ( 5 ) for Ali Mirza-Aghazadeh
  Afshar Mirzaei-Aghsaghali , Naser Maheri-Sis , Ali Mirza-Aghazadeh , Yahya Ebrahimnezhad , Mohammad Reza Dastouri and Abolfazl Aghajanzadeh Golshani
  This study was conducted to compare methane production in legume (two common Iranian alfalfa varieties) and grass (quackgrass; QCK) as forage sources in sheep nutrition by using nutrient composition of the diet. Each of the 2 hays of legume (Hamedani; HAM and Kareyonge; KAR varieties) and grass (QCK) were offered ad libitum to three Gezel rams. No significant difference found between Dry Matter (DM), Crude Protein (CP), Ash and Ether Extract (EE) of 2 alfalfa varieties, although the difference for Crude Fiber (CF) was significant (p<0.01). The Organic Matter (OM), DM, CP, CF, Ash contents of 2 species (legume and grass) were significantly different (p<0.05). Methane production (g per day, g per kg BW and g per kg BW0.75) were similar in HAM and KAR hays (p>0.05), whereas methane production (g per day, g per kg BW and g per kg BW0.75) in grass hay were significantly (p<0.01) higher than that of legume hay. Calculations based on nutrient composition of the diet indicate that grass hay can have a higher methane production than legume resulting to gross energy lost as CH4.
  Ali Mirza-Aghazadeh , Afshar Mirzaei-Aghsaghali , Naser Maheri-Sis , Abolfazl Asadi-Dizaji and Abdulahad Shaddel
  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.
  Naser Maheri-Sis , Amir Reza Safaei , Afshar Mirzaei-Aghsaghali , Ali Mirza-Aghazadeh and Mohammad Reza Dastoori
  The objective of this study, was to assess the nutritive value of two forage species include Alfalfa (ALF) and Quackgrass (QCK) grown in Iran by using the chemical composition, in vitro gas production kinetics, Organic Matter Digestibility (OMD) and Metabolisable Energy (ME) contents. Rrumen mixed microbe inoculums were taken from two fistulated Gezel rams. Samples of forages were incubated with rumen fluid to determine gas production. Gas productions were measured at 2, 4, 6, 8, 12, 24, 48, 72 and 96 h. No significant differences were found between Organic Matter (OM), Ether Extract (EE), ash and Acid Detergent fiber (ADL) contents of experimental forages, although the differences for Dry Matter (DM), Crude Protein (CP), Crude Fiber (CF), Neutral Detergent Fiber (NDF), ADF and Gross Energy (GE) were significant (p<0.01). Gas production at all incubation times and gas production constants (a, b, c and a + b) were significantly (p<0.01) higher in ALF hay. The OMD and ME for ALF and QCK hays were 71.2, 43.45% and 10.96, 6.58 MJ per Kg DM, respectively. Under the climatic conditions of the 2005 growing season, the nutritive value of ALF hay was higher to that of QCK hay, because of lower NDF, greater cell content, OMD and ME.
  Naser Maheri-Sis , Mohamad Chamani , Ali-Asghar Sadeghi , Ali Mirza-Aghazadeh and Amir-Reza Safaei
  The present study determines the chemical composition and estimation of nutritive value of 2 types of chickpea wastes including Culled Chickpea (CCP) and Chickpea Dehulling by-Products (CDP) using in vitro gas production technique in sheep. The samples were collected from 10 pea packaging and processing factories. The feed samples (200 mg from each ) were incubated with rumen liquor taken from three fistulated Ghezel rams at 2, 4, 6, 8, 12, 24, 48, 72 and 96 h. The results showed that Organic Matter (OM), Ether Extract (EE), Non Fibrous Carbohydrates (NFC), starch and Total Phenolic Compounds (TPC) were significantly (p<0.05) greater in CCP than that of CDP, but Neutral Detergent Fiber (NDF) were higher in CDP (p<0.05). The Crud Protein (CP) and tannins of two feed samples were similar. There were significant differences (p<0.05) in Dry Matter Digestibility (DMD), Organic Matter Digestibility (OMD), Short Chain Fatty Acids (SCFA) and Metabolizable Energy (ME) contents (p<0.01) of 2 experimental wastes. Gas productions for 24 h were significantly (p<0.05) higher in CCP than CDP (75.6 vs. 60.6 mL). The gas production constants values (a, b and c) for CCP were 4.6, 85.3 and 0.05 while for CDP were 4.9, 78.6 and 0.05, respectively. In an overall conclusion it seems that, the nutritive value of CCP was higher than that of CDP.
  Naser Maheri-Sis , Afshar Mirzaei-Aghsaghali , Amir Reza Safaei , Ali Mirza-Aghazadeh and Ghassem Habibi Bibalani
  The nutritive value of quackgrass (Agropyron repens L.) was evaluated at late maturity. Rumen mixed microbe inoculums were taken from two fistulated Gezel rams. Samples of quackgrass were incubated with rumen fluid to determine gas production. Gas production was measured at 2, 4, 6, 8, 12, 24, 48, 72 and 96 h. The results showed that the Crude Protein (CP), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) content of quackgrass hay were 8.9, 69.5 and 38.3%, respectively. Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) content were 43.54% and 6.58 MJ kg1 DM, respectively. In conclusion, it seems that quackgrass could be used as an efficient ruminant feed.
 
 
 
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