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Articles by A. Mirza Aghazadeh
Total Records ( 2 ) for A. Mirza Aghazadeh
  A. Mirzaei Aghsaghali , N. Maheri Sis , A. Mirza Aghazadeh and A. R. Safaei
  The nutritive value of alfalfa (variety of Hamedani) was evaluated at late maturity (mid to late bloom). The in vivo digestibility of the hay was determined by conducting digestibility and respiration trials in three Gezel rams. Dry matter, organic matter and protein degradability of the hay was determined by nylon bag technique and in vitro Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) content were determined by Gas production technique. The results showed that the crude protein, Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) content of alfalfa hay were 15.8, 43.1 and 29.4%, respectively. In vivo Dry Matter (DMD), Organic Matter (OMD), Crude Protein (CPD) digestibilities and ME content in alfalfa hay were 65, 66.7, 64% and 9.6 MJ per kg DM, respectively. In situ DM, OM and CP effective degradability at a rate 0.02 h 1 were 64, 61.23 and 49.6%, respectively. Gas production technique OMD and ME content were 71.2% and 10.69 MJ per kg DM. Results obtained with nylon bag technique were confirmed by the in vivo experiments involving the alfalfa hay samples.
  A. Mirzaei Aghsaghali , N. Maheri Sis , A. Mirza Aghazadeh and A. R. Safaei
  This study was conducted to evaluate quality indices in two common Iranian alfalfa varieties as a forage source in sheep nutrition. The studied alfalfa varieties were Hamedani (HAM) and Kareyonge (KAR). Chemical composition, Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), Acid Detergent Lignin (ADL), leaf to stem ratio and predicted Dry Matter Intake (DMI), Dry Matter Digestibility (DMD) were determined and Total Digestible Nutrients (TDN), Net Energy for Lactation (NEL), Relative Feed Value (RFV), Relative Forage Quality (RFQ), of feeds were estimated. Three ruminal fistulated Gezel rams, were used for in vivo and in situ trials. The NDF and ADF contents of two alfalfa varieties were significantly different (p< 0.01). No significant difference found between CP, ADL and leaf to stem ratio of two alfalfa hays (p>0.05). The TDN and NEL contents of two varieties and DMI (% of BW and g per kg BW0.75) and DMD (%) had significant differences (p< 0.01). The RFV and RFQ values for experimental varieties were significantly different (p< 0.01). It can be concluded that HAM hay can have a higher nutritional quality than KAR hay because of lower cell wall and higher TDN contents and therefore, HAM hay may be evaluated more accurately when tested for RFQ instead of RFV.
 
 
 
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