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Articles by Abolfazl Aghajanzadeh-Golshani
Total Records ( 5 ) for Abolfazl Aghajanzadeh-Golshani
  Afshar Mirzaei-Aghsaghali , Naser Maheri-sis , Ali Mirza-Aghazadeh , Amir Reza Safaei , Amir-Farhang Houshangi and Abolfazl Aghajanzadeh-Golshani
  The aim of the study was to determine the chemical composition and ruminal degradation characteristics of two alfalfa varieties including Kareyonge (KAR) and Hamedani (HAM) grown in West Azerbaijan in Iran, using in situ technique. The nutritional parameters were Dry Matter (DM), Organic Matter (OM) and Crude Protein (CP). Nylon bags filled with 5 g of each forage were suspended in the rumen of three cannulated Gezel rams immediately before feeding and incubated for 7 different times (0, 4, 8, 16, 24, 48 and 72 h). Parameters for degradation kinetics included readily degraded fraction, slowly degraded fraction, lag time and fractional rate of passage. No significant difference found between DM, CP, Ash and Ether Extract (EE) of two alfalfa varieties although the difference for Crude Fiber (CF), Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) were significant (p<0.01).The degradability of DM, OM, CP and Effective Rumen Degradable Protein (ERDP) at a rate of 0.05/h for KAR and HAM varieties were 54.2, 52.16, 40.1%, 72.57 g kg-1 DM and 56.97, 54.9, 39.25%, 89.4 g kg-1 DM, respectively. Calculations based on in situ degradability indicate that HAM alfalfa can have a higher inclusion than KAR alfalfa in diets for ruminants because of lower NDF, greater cell contents and ERDP.
  Naser Maheri-Sis , Mohammad Chamani , Ali Asghar Sadeghi , Ali Mirzaaghazadeh , Kambiz Nazeradl and Abolfazl Aghajanzadeh-Golshani
  This study was carried out to evaluate effects of drying and ensiling on ruminal cell wall (neutral detergent fibre; NDF) degradation of tomato pomace using in situ technique. Nylon bags filled with 5 g (on dry matter basis) of each wet, dried and ensiled tomato pomace were suspended in the rumen of three fistulated Ghezel rams for 0, 2, 4, 8, 12, 24, 48 and 72 h and obtained data were fitted to a non-linear degradation model to calculate ruminal degradation characteristics. Results showed that drying and ensiling, cause significant decrease in cell wall degradation of tomato pomace at all incubation times. Cell wall water soluble fraction (a) was decreased and potentially degradable fraction (b) was increased, while rate of degradation (c) and potential degradability (a+b) were not significantly affected by drying and ensiling of tomato pomace. Effective rumen degradability of cell wall was significantly reduced by the processing. In an overall conclusion, cell wall degradability of fresh tomato pomace was higher than that of dried and ensiled form. In other word, ensiling and drying can exert negative effects on cell wall degradation of tomato pomace in the rumen.
  Yahya Ebrahimnezhad , Naser Maheri-Sis , Abolfazl Aghajanzadeh-Golshani , Jamshid Ghiasi Galekandi , Masoud Sarikhan and Akbar Darvishi
  This experiment was conducted to evaluate the combined effects of Citric Acid (CA) and Microbial Phytase (MP) on the serum concentration and digestibility of some minerals in broiler chicks. This experiment was conducted using 360 Ross-308 male broiler chicks in a completely randomized design with a 3x2 factorial arrangement (0, 2.5 and 5% CA and 0 and 500 FTU MP). Four replicate of 15 chicks per each were fed dietary treatments. The concentration of zinc, copper and manganese of serum and their digestibility and also digestibility of apparent metabolizable energy (AMEn) was evaluated. The results showed that interaction effect of CA and MP on concentration of copper, zinc and manganese in serum of broilers fed with low available phosphorus diets was significant (p<0.05). Adding 2.5% CA into low available phosphorus diets increased digestibility of zinc in comparison to diets without CA and with 5% CA in broiler. Adding CA into low available phosphorus diets increased manganese digestibility on based corn-soybean meal diets (p<0.01).
  Naser Maheri-Sis , Bayaz Abdollahi-Ziveh , Ramin Salamatdoustnobar , Alireza Ahmadzadeh , Abolfazl Aghajanzadeh-Golshani and Mehdi Mohebbizadeh
  This study was carried out to determine the chemical composition and ruminal degradability of Soybean Straw (SBS). Samples were collected from several soybean grain threshing farms in Moghan, Iran. Chemical composition for Dry Matter (DM), Crude Protein (CP), Ether Extract (EE), Organic Matter (OM), Neutral Detergent Fibre (NDF), Acid Detergent Fibre (ADF) and Acid Detergent Lignin (ADL) of pooled samples were 89.18, 5.10, 2.85, 96.90, 80.80, 63.20 and 13.00%, respectively. Degradation procedure was performed using nylon bags filled with 5 g of SBS and suspended in the rumen of three fistulated Gezel rams for 0, 2, 4, 8, 16, 24, 48 and 72 h and obtained data were fitted to a non-linear degradation model to calculate ruminal degradation characteristics. Results showed that soluble fraction (a) of SBS were very low, especially in case of DM and OM. Potential degradability (a + b) of SBS for DM, OM and CP were 36.97, 37.74 and 68.07% and for effective degradability (Out flow rate 0.02 h-1) were 21.40, 22.27 and 48.30%, respectively. It is conclude that, SBS have low DM and OM degradability and higher CP degradability in the rumen. Based on chemical composition and degradation characteristics, untreated SBS can be used in the ration of ruminant in limited levels.
  Naser Maheri-Sis , Abolfazl Aghajanzadeh-Golshani , Hosein Cheraghi , Yahya Ebrahimnezhad , Jamshid Ghiasi Ghalehkandi and Abolfazl Asaadi-Dizaji
  Chickpea straw is the main by-product which is produced in large amounts after chickpea grain threshing. There is a little information about its nutritive value. This experiment was carried out to determine the fiber and non-fibre component, ruminal dry matter degradability and Metabolizable Energy (ME) of chickpea straws using nylon bags (in situ) technique. Replicated samples were incubated at 0, 2, 4, 8, 12, 24, 48 and 72 h in 3 rumen canulated male Ghezel rams with 50±3 kg body weight. Dry Matter (DM), Neutral Detergent Fibre (NDF), Acid Detergent Fibre (ADF) and Non-Fibrous Carbohydrates (NFC) content of chickpea straws were 92.18, 57.80, 37.40 and 22.65%, respectively. The dry matter soluble fraction (a), non-soluble but potentially degradable fraction (b) and potential degradability (a+b) of chickpea straws were 19.50, 38.60 and 58.10%, respectively. Effective degradability at different passage rates (2, 5 and 8% h-1) were 53.70, 48.60 and 44.80%, respectively. Estimated metabolizable energy of chickpea straw was 8.55 MJ kg-1 DM. Based on the DM degradation kinetics and energy content, beseems chickpea straw could be used as a valuable feedstuff in ruminants diet.
 
 
 
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