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Articles by Rasoul Pirmohammadi
Total Records ( 6 ) for Rasoul Pirmohammadi
  Massoud Jafari , Rasoul Pirmohammadi and Vasileios Bampidis
  In an experiment with 288 laying hens from a commercial strain (Hy-line W36), the effect of partial and total replacement of soybean meal, corn grain, wheat grain and wheat bran with dried tomato pulp (DTP) on performance and egg quality was determined. In the 12 week experiment, hens (27 to 38 weeks of age) were allocated to four dietary treatments being: DTP0, DTP50, DTP100 and DTP150 of 72 birds each, and received a diet ad libitum. The diet for DTP0 treatment had no DTP (control), while those for treatments DTP50, DTP100 and DTP150 included 50, 100 and 150 kg/t of DTP, respectively. Inclusion of DTP at levels up to 100 kg/t in diets of laying hens increased egg production and egg mass by 2.7% and 4.1%, respectively, compared to the control and resulted in similar traits, relative to final BW, egg weight, daily feed consumption, egg shell weight, egg shell thickness, haugh units and yolk color. However, inclusion of DTP at higher level (150 kg/t of diet) decreased egg production and egg mass by 3.6% and 3.0%, respectively, and increased feed efficiency by 2.9% compared to the control. Thus, DTP can be used as an alternative feedstuff in laying hen diets, at inclusion levels up to 100 kg/t without negative effects on performance and egg quality.
  Sayid Fazlollah Ghoreishi , Rasoul Pirmohammadi and Asadollah Teimouri yansari
  Most developing countries are facing difficulties in providing sufficient food for their animals. Apple Pomace (AP) is a by-product obtained when apples are pressed to make juice. Using such by-products for animal feeding is a means of recycling which otherwise, if accumulated, might cause environmental pollution. The purposes of the current study were to determine the effect of Ensiled Apple Pomace (EAP) on milk production, milk composition and DM intake of Holstein dairy cows. Three multiparous lactating Holstein dairy cows were allocated to 3 diet treatments according to a 3-period cycling change over design in a 33 (3 periods and 3 diets) with Latin Square arrangement. The treatments were 1, control diet (no EAP), 2 (15% EAP) and 3 (30% EAP) DM basis. There were no significant differences between treatments on milk yield and milk composition. DMI (Dry Matter Intake) was lower (p< 0.01) for treatment 2 compared to treatment 1 or treatment 3. The effects of treatments were significant on FCR (Feed Conversion Ratio) and FE (Feed Efficiency). Treatment 2 had lower (p< 0.05) FCR and higher (p< 0.05) FE than the others. According to results of this study it may conclude that EAP can substitute successfully at diets up to 30% without negative effect on milk yield and milk composition (percentage of fat, protein and SNF).
  Rasoul Pirmohammadi , Ahad Golgasemgarebagh and Ali Mohsenpur Azari
  Grape Pomace (GP) is an agro-industrial by-product that can be utilized as a feed resource in ruminant diets. This study was done to determine the effects of ensiling and drying on degradability and digestibility of GP. Crude protein content in EGP and DGP was 144 and 132 g kg 1 DM, respectively. DM and NDF concentration of DGP was 497 g kg 1 and 504 g kg 1 and for EGP were 225 and 69.3 g kg 1, respectively. Total Tannins (TT) and Total Phenols (TP) concentration of DGP (186 and 236 g kg 1) was higher than EGP (92 and 132 g kg 1). The soluble components of EGP (a fraction) were 16.6% while this value for DGP was 24.3%. Rapidly degraded fraction of EGP was significantly (p< 0.05) lower than DGP. The insoluble but fermentable component (b fraction) in DGP (26.3%) was significantly (p< 0.05) higher than that of EGP (14.2%). Also dry matter Effective Degradability (ED) of EGP was significantly (p< 0.01) lower than that of DGP. ED value for DGP and EGP were 35.9 and 22.9%, respectively. Rate of degradation(c fraction) was not significant among DGP and EGP. DMD and OMD values obtained for DGP and EGP was 345, 285, 247 and 197 (g kg 1 DM), respectively.
  Latif Zalikarenab , Rasoul Pirmohammadi and Asadollah Teimuriyansari
  Due to a shortage of ruminant feeds, especially in developing countries, agro-industrial by products is of important to animal production because they do not compete with human food and also are cheep. The aim of this study was to assess digestibility value dried Grape Pomace (GP) originating from either white or red wine species. The white GP had higher protein, but lower neutral detergent fiber concentration than the red GP. Four mature wether sheep used for determination of digestibility. For measurement of digestibility, GP was mixed with a basal diet and digestibility was considered for the basal diet and test diets containing GP. Animals were allowed 14 day adjustment before a 5 day collection period. The inclusion of GP in the diet significantly decreased the apparent Digestibility of Dry Matter (DMD), Organic Matter (OMD), Dry Matter in Organic Matter (DOMD), Crude Protein (CPD) and Neutral Detergent Fiber (NDFD) (p< 0.01), this decrease were more for red GP than that of white. DMD, OMD, DOMD, CPD, NDFD and content ME calculated by difference for red (and white) GP were 31.64% (38.97%), 30.28% (37.17%), 28.3% (34.31%), 8.61% (35.o1%) and 14.94% (22.39%), 4.53 (5.48) MJ Kg 1, respectively.
  Rasoul Pirmohammadi , Omid Hamidi and Ali Mohsenpur Azari
  The Grape Pomace (GP) is one of the agro-industrial by-products that can be used in ruminant feeding. But it has anti-nutritional factors such as tannins. An experiment was carried out to study the effect of Polyethylene Glycol (PEG) addition on chemical composition, degradability and digestibility of white grape pomace for ruminants. Inclusion rate of PEG to GP was done at 4 levels. The nylon bag technique was used to determine the rate of degradability of DM with 3 rumen-fistulated Azeri buffaloes. Dry Matter and Organic Matter Digestibility (DMD and OMD) were determined using in vitro methods. Results showed that NDF content of WGP increased with PEG inclusion. Crude Protein (CP) concentration of untreated WGP (No PEG) was 13.25% and for WGP1 (15.60 g kg 1 PEG), WGP2 (31.21 g kg 1 PEG) and WGP3 (46.80g kg 1PEG) were 11.41, 10.80 and 10.56%, respectively. TEPH (total extractable phenol) concentration of WGP (No PEG), WGP1 (15.60 g kg 1 PEG), WGP2 (31.21 g kg 1 PEG) and WGP3 (46.80g kg 1PEG) were 2.36, 1.43, 1.65 and 1.49%, respectively. These observations may show the positive effects of PEG addition to increase degradability value of WGP. According to results of this study it may conclude that inclusion of PEG to WPG can make a progress in degradability and digestibility values and the optimum effect was obtained at WGP2 (31.21 PEG g kg 1 DM of WPG) inclusion level.
  Sattar Bageridizaj , Rasoul Pirmohammadi and Vasileios Bampidis
  In an experiment with 112 laying hens from a commercial strain (Hy-line W36), the effects of probiotics Biosaf SC 47 (SC) containing a minimum of 5109 colony forming units (cfu) g 1 Saccharomyces cerevisiae (strain NCYC Sc 47) and BioPlus 2B (BP) containing a minimum of 3.2109 cfu g 1 of Bacillus licheniformis (strain CH200) and B. subtilis (strain CH201) on performance, egg quality and yolk/serum cholesterol was determined. In the 10 week experiment, hens (46 to 55 weeks of age) were allocated to seven dietary treatments being: SCBP0, SC200, SC300, SC400, BP400, BP800 and BP1200 of 16 birds each and received a diet ad libitum. The diet for SCBP0 treatment had no probiotic (control), while those for treatments SC200, SC300 and SC400 included 200, 300 and 400 g t 1 of probiotic SC, respectively and those for treatments BP400, BP800 and BP1200 included 400, 800 and 1200 g t 1 of probiotic BP, respectively. Inclusion of the probiotics SC at levels up to 400 g t 1 and BP at levels up to 1200 g t 1 in diets of laying hens resulted in similar traits, relative to final BW, DFC, egg weight, egg mass, egg shell breaking strength, haugh units, albumen index, yolk color, and yolk and serum cholesterol. Egg production and egg shell weight did not differ (p>0.05) between treatment SCBP0 and all other treatments, but egg production was higher (p<0.05) in treatment SC400 compared to treatment BP1200 and egg shell weight was higher (p<0.05) in treatments SC300, SC400, BP800 and BP1200 compared to treatment BP400. Feed efficiency was higher (p<0.05) in treatments SC200, SC300 and BP800 compared to treatment SCBP0 and egg shell thickness was higher (p<0.05) in treatment SC200 compared to treatments SCBP0 and BP400, whilst no other differences were observed among treatments. No deaths occurred during the experiment.
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