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Articles by M. Bojarpour
Total Records ( 18 ) for M. Bojarpour
  N. Dabiri , A. Ashayerizadeh , O. Ashayerizadeh , K.H. Mirzadeh , H. Roshanfekr , M. Bojarpour and M.R. Ghorbani
  This study was conducted for comparison the effect of some feed growth promoter additives on performance and gut microflora population of 21 days old broiler chickens. Based on randomized completely design, 300 days old Ross 308 broilers were distributed into 30 floor pens and reared for 21 days. The basal diet was also supplemented with Flavomycin, Primalac, Biolex-MB and mixture of Primalac plus Biolex-MB, resulting 5 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 6 replicate group of 10 bird at the bigining of rearing period. The result of experiment indicate that diets containing growth promoters improved broilers performance. This improvement was only significant (p<0.05) between control group and both Biolex-MB and synbiotic treatment groups, for body weight gain and between control group and 3 bird groups fed Flavomycin, Biolex-MB and synbiotic dietary treatments for feed conversion raito. Compared with control birds group, all other treatment groups fed growth promoter diets had relatively lower total bacterial population in crop except for Primalac treatment, but this differences was significant (p<0.05) only between Flavomycin and control group treatments. Birds fed diets containing growth promoter had greater lactic acid bacteria populations in crop compared with control group, but this priority was significant (p<0.05) only for synbiotic group. A reversed trend were found for coliforms population in ileum, where all growth promoter groups, except Flavomycin, had significantly (p<0.05) lower population compared with control group. Additionally, such feed additives altered the pH content of crop and ileum.
  E. Rahmatnejad , M. Bojarpour , KH. Mirzadeh , M. Chaji and T. Mohammadabadi
  This study was designed to evaluate the effect of Dried Tomato Pomace (DTP) on hematological indices of broiler chickens. Based a randomized completely design, 160 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The basal diet was also supplemented with 8, 16 and 24% dried tomato pomace, resulting 4 dietary treatments were prepared including control group. Each dietary treatment was fed ad-libitum to 4 replicates group of 10 birds at the beginning of rearing period. Inclusion of 24% DTP into the diet significantly decreased concentration of total protein, cholesterol and Low Density Lipoprotein (LDL) in serum (p<0.05). The highest High Density Lipoprotein (HDL) were recorded for birds fed diets supplemented with 16 and 24% DTP (p<0.05).
  R. Yaeghoobi , H. Roshanfekr , M. Mamooee , J. Fayazi , A. Ashayerizadeh , M. Bojarpour and M.T. Beigi Nasiri
  This study was carried for investigation interaction between genotype and environment for milk and fat production traits of Holstein cattle in western provinces of Iran. In this study, used 2213 records of first lactation Holstein dairy cattle in this zone of Iran. These data get from Iranian Animal Breeding Center from 1996-2006. The edited sets include 2213 first lactation for milk and fat. Records were divided in two climates. Heritability estimates using REML method and derivative-free algorithm for milk and fat yield in semidry climate and Mediterranean climate 0.2014±0.06 and 0.2468±0.03, respectively. For estimation of Genetic correlation were used from multivariate animal model. Genetic correlation was -0.04 and 0.013 for milk yield and fat yield, respectively. EBVes correlation mean was -0.019 and 0.031 for proofs between climate for milk and fat traits, respectively. Low genetic correlation and EBVes correlation for milk and fat traits between climates Indicate to proofs have not same difference performance in both climates. In addition, Germany Sperms cause increase milk and fat yield in both climate and Iranian and American Sperms decrease milk and fat yield in both climate.
  A. Azarnik , M. Bojarpour , M. Eslami , M.R. Ghorbani and K. Mirzadeh
  The effect of different levels of diet protein and feed restriction was studied in broiler chicken. A total of 240 (Ros-308) day-old broiler chickens were randomly assigned to nine treatments each in 3 replicates of 10 birds per pen. The 2 protein level, 4 feed restriction level were used in 2x4 factorial arrangements in isoenergitic diets. The experiments lasted for 6 weeks. The feed consumption, body weight gain and Feed Conversion Ratio (FCR) were measured weekly. At the end experiment tow chickens from per pen were randomly selected, weighted, slaughtered and used to determine body parameters and data analysed. Feed restriction reduced significantly (p<0.05) body weight gain and feed consumption. Feed restriction had no significant effect on FCR. Diet protein level had no significant effect on performace. Feed restriction reduced carcass weight, breast weight and tigh weight.
  L. Ghaemnia , M. Bojarpour , Kh. Mirzadeh , M. Chaji and M. Eslami
  In this study effect of different levels of zeolite on digestibility and some blood parameters in Arabic lambs investigated. In this experiment a change-over design with eigth Arabic lambs with an average live weight of 35±2 selected. Foure rations and foure period was employed. The 4 treatments were: control groups, C+ 3%, C+ 6% and C+ 9% zeolite. The rations were fed to lambs as total mixed feed offered and orts and fecal samples were recorded daily. Blood samples were collected on the end of each period. Plasma glucose concentration was not significantly affected by treatment but tended to be lower with added zeolite. Conversely, the dietary inclusion of resulted in a lower plasma urea-N concentration (p<0.05). Intake of DM was higher for lambs receiving zeolites (p>0.05). Digestibility of DM was lowered with added zeolite (p<0.05). Digestibility of CP and NDF were increased by inclusion of 6% zeolite. This difference was significant (p<0.05) but digestibility of ADF was not significantly affected (p>0.05).
  H. Roshanfekr , M. Mamouei and M. Bojarpour
  Based on 202 observations, the mean and standard errors values per milking for hind left, hind right, fore right and fore left quarters of lactating Iranian buffaloes were recorded, respectively as 1200±19, 1167±18, 533±16 and 496±16 g for milk yield; 7.21±0.09, 7.21±0.09, 7.11±0.08 and 7.11±0.08% for fat, 9.91±0.06, 9.93±0.05, 9.89±0.04 and 9.90±0.4% SNF; 620±13, 611±12, 509±11 and 491±11 g min-1 for milk flow rate and 122±4, 119±4, 70±3 and 69±3 sec for total milking time under hand milking conditions. The overall let down time was 94±2 sec. The differences between individual quarters between fore pair and hind pair quarters and between right pair and left pair quarters were not significant only for fat and SNF contest, while between the right pair and left pair quarters differences were not significant for any of the parameters. Parity and stage of lactation influenced all the quarter (individual, fore pair vs. hind pair, right pair vs. left pair) parameters with trends similar to those of the same parameters for the whole udder, the time of milking (am or pm) influenced significantly milk yield, rate of flow and SNF content only, which were higher in the morning.
  A. Masoudi , M. Bojarpour , M. Chaji , M. Eslami and Kh. Mirzadeh
  Study was conducted to evaluate the economic value of broiler chicken diets containing Date Pits (DP) replaced by maize. About 180 days old commercial broiler chickens randomly were assigned to four experimental diets; treatments 1-4 included dietary containing 0, 10, 20 and 30% of date pits, respectively. All diets were isonitrogenous and isocaloric and formulated according to Nutrient Requirements of poultry (NRC). The results showed that in compared with control group cost (kg) of feed decreased with increasing of date pits in diets. At whole of starter and grower periods, there were no significant differences (p>0.05) in feed intake. Feed conversion ratio of diets containing 20 and 30% of date pits was significantly more than control diet (respectively, 2.44 and 2.53 vs. 1.91) (p<0.05) but there was no significant difference with diet containing 10% date pits (p>0.05). As cost (kg) of meat production there was no significant difference (p>0.05) between diets, although the cost of meat production was higher in diets containing of date pits (p>0.05). Therefore, date pits reduce the cost of diets but not meat.
  Kh. Mirzadeh , A. Masoudi , M. Chaji and M. Bojarpour
  This study was conducted to evaluate the quality of raw milk produced by the 140 dairy cow farms at different locations of Lordegan region. Solid Non Fat (SNF), Crud Protein (CP), fat, density, Dry Matter (DM), water and freezing point of samples were measured. The result showed that milk compositions of dairy farms were containing 87.42±1.13% water, 8.67±0.69% SNF and 12.57±0.69% total solid matters. Solid matters were including: 3.90±0.97% fat, 3.2±0.22% protein and 5.03% lactose and other minerals and vitamins. The data demonstrate that milk composition of Lordegan dairy farms had corresponded to global and Iran average.
  K. Mohammadi , A. Aghaei , M. Bojarpour , Kh. Mirzadeh and Gh. Motaghinia
  The aims of this study were to investigate the importance of maternal effects and to determine the most appropriate model of analyses for early growth traits of Arabi lambs. Records of 2445 lambs from 139 rams and 804 ewes for Birth Weight (BWT) on 2237 lambs from 127 rams and 784 ewes for Weaning Weight (WWT) and on 2098 lambs from 115 rams and 739 ewes for Average Daily Gain from birth to weaning (ADG) were used in this research. The data collected from Animal Science Research Station of Agricultural and Natural Resources Ramin (Khuzestan) University during 2001-2008. Genetic parameters were estimated by derivative free restricted maximum likelihood method. Six different animal models were fitted by including or excluding maternal genetic effect, maternal permanent environmental effect and covariance between direct-maternal genetic effects. On the basis of log likelihood ratio test results, Model 3 which included direct genetic and maternal genetic effects was determined to be the most appropriate model for all traits. The maternal genetic effects contributed about 74, 69 and 64% to the direct genetic effects and 15, 11 and 10% to the phenotypic variance for BWT, WWT and ADG, respectively. Depending on the model, the estimates of maternal heritability ranged from 0.074-0.146 for early growth traits of Arabi lambs. Results showed that maternal genetic effects were important for pre-weaning growth traits and should not be neglected from the model; therefore inclusion of maternal effects into the model for mentioned traits is necessary.
  Kh. Mirzadeh , S. Tabatabaei , M. Bojarpour and M. Mamoei
  The aim of this study was comparison of hematological parameters according strain, physiological status, age, season and sex in cattle. Blood samples from 300 Holstein, Brown-swiss, Semental, Brown-swiss x Semental crossbreed and Brown-swiss x Holstein crossbreed cattle at different physiological status (dairy cows, dried cows, non pregnant cows, pregnant heifers, suckling and non suckling calf), age (0.5-3, 3.5-6, 6.5-9, 9.5-18, 18.5-36, 36.5-60 and >60 months) sex (male and female) and season (spring, summer, autumn and winter) were used. RBC mass, WBC mass, Hemoglobin concentrations (HB), PCV, MCV, MCHC, MCH, platelet mass, percent and concentration of lymphocyte, neutrophil, eosinophil and monocyte were determined with routine methods. Except for PCV, neutrophil, lymphocyte, eosinophil percents and neutrophil-lymphocyte ratio, there was not significant differences for other hematological parameters between strains. Except for Platelet concentration, monocyte percent and count, the other hematological parameters were significantly differ between various physiological status and ages of cattle. Except for Hb, PL, WBC and monocyte concentration, the other hematological parameters were significantly differ between sexes. Except for neutrophil concentration, monocyte percent and concentration, the other hematological parameters were significantly differ between seasons.
  K. Mohammadi , M. Mamouei , M. Bojarpour , Kh. Mirzadeh and A. Aghaei
  The aim of the present study was to estimate variance components and genetic parameters for post-weaning growth traits of 2634 Zandi lambs from 202 sires and 1093 dams for 6 Month Weight (6MW) of 1893 lambs from 188 sires and 816 dams for 9 Month Weight (9MW) and of 1115 lambs from 156 sires and 514 dams for Yearling Weight (YW). Data and pedigree information used in this study were collected from Khojir Research Station (Tehran-Iran) during 1993-2008. Genetic parameters were carried out by Restricted Maximum Likelihood (REML) method, under six different single-trait animal models. Log likelihood ratio test indicated the most appropriate model for 6MW should included direct additive genetic effects as well as maternal permanent environmental effects whilst the most appropriate model for 9MW and YW had only the direct additive genetic effects. The effects of lamb’s sex, dam’s age and birth year were highly significant on all three traits (p<0.01) but birth type was only significant effect on 6 MW (p<0.05) and was no significant effect on 9MW and YW (p>0.05). Average weights were 27.55±0.09, 32.67±0.11 and 34.92±0.16 kg for 6MW, 9MW and YW, respectively. Estimates of direct heritability (h2) were 0.132, 0.134 and 0.133 for 6MW, 9MW and YW, respectively. The estimate of maternal permanent environmental variance as a proportion of phenotypic variance (c2) was 0.056 for 6MW.
  H. Damiri , M. Chaji , M. Bojarpour , M. Eslami and M. Mamoei
  This study was conducted to evaluate economic value of Sodium Bentonite (SB) originated from mines of Khorasan Province of Iran in broiler chickens diets. About 288 days old Ross strain broiler chickens were allocated to 6 experimental diets with 4 replications in a completely randomized design. Treatments were 0, 0.75, 1.5, 2.25, 3, 3.75% of sodium bentonite that used as top-dress. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. The results showed that sodium bentonite had no significant effects on feed intake, feed conversion ratio, cost of 1 kg feed and cost of 1 kg meat production (p>0.05).
  M. Borazjanizadeh , M. Eslami , M. Bojarpour , M. Chaji and J. Fayazi
  This study was conducted to evaluate economic value of clove and oregano cultivated in Iran on economic value of broiler chickens diets. About 271 day old Ross strain broiler chickens were allocated to 9 experimental diets with 3 replications in a 3x3 factorial experiment. Treatments were 0, 0.5 and 1% of clove and oregano (AH) that used as top-dress. A basal diet was formulated according to NRC recommendation for grower (14-21 days) and finisher (21-42) periods. The results showed that clove and oregano had significant effects on feed intake, feed conversion ratio and the cost of 1 kg feed and cost of 1 kg meat production (p<0.05).
  M. Baghaei , M. Eslami , M. Chaji , M. Mamoue and M. Bojarpour
  This experiment was conducted to evaluation the effect of dietary Betafin (Betaine anhydrous 97%) supplementation as a replacement for DL-Methionine on blood parameters of 42 days old broiler chickens. Total 300 days old Ross 308 broilers were used in a completely randomized design with 4 treatment and 5 replicates in each treatment and 15 birds/replicates and reared on the floor pens for 42 days. A basal diet was formulated as control according to NRC recommendations for starter (1-21 days) and grower (22-42 days) periods. In experimental diets, DL-Methionine levels were formulated either according to NRC (control (T1)) or at 90 (T2), 80 (T3) and 70% (T4) of the control. The incompletes levels of the Methionine in T2-T4 supplemented by adding Betafin to the diets. The results indicated that by replacement of Betafin instead of DL-Methionine in diets of broiler blood parameters was not altered significantly. Although, in birds fed T4, the concentration of the all measured blood parameters except HDL was the maximum or minimum when compared to other groups.
  E. Rahmatnejad , M. Bojarpour , M. Islami , J. Fayazi and M. Mamouei
  This experiment was conducted to study economic value of Dried Tomato Pomace (DTP) in broiler chickens diets in the form of completely randomized design. For this purpose, 160 days old Ross 308 broilers were distributed into 16 floor pens and reared for 42 days. A basal diet was formulated according to NRC recommendations for starter (0-21 days) and grower (22-42 days) periods. Then, the basal diet was also, supplemented with 8, 16 and 24% DTP, resulting 4 dietary treatments were prepared including control group. The results showed that feed conversion ratio between treatments containing 8 and 16% of DTP compared to control group had no significant difference (p>0.05), but the highest (worst) feed conversion ratio were recorded for birds fed diets supplemented with 24% DTP (p<0.05). Comparison of the cost for 1 kg meat showed that the use of DTP up to 16% in diet reduce production cost.
  M. Baghaei , A. Ashayerizadeh , M. Eslami , M. Bojarpour , H. Roshanfekr and K.H. Mirzadeh
  An in vivo experiment was conducted to determine the effect of dietary betaine supplementation as a replacement for methionine on broiler performance and carcass characteristics. Three hundred day old Ross 308 broilers were used in a randomized completely design with 4 treatment and 5 replicates in each treatment and 15 birds/replicates and reared on the floor pens for 42 days. A basal diet was formulated as control according to NRC, recommendations for starter (1-21 days) and grower (22-42 days) periods. In experimental diets, methionine levels were as formulated (control (T1)) and at 90 (T2), 80 (T3) and 70% (T4) of the control. The incompleted levels of the methionine in T2, T3 and T4 supplemented by adding Betafin to the diets. The result of present study indicated that feed intake was no affected by treatments (p>0.05). The birds under T2 and T4 had lower body weight gain during 1-42 days as compared with control group. Also, the using of T4 in both of 22-42 and 1-42 days and T2 in 1-42 days significantly resulted to undesirable feed conversion ratio (p<0.05). Supplementation levels of betafin in diets no significantly (p<0.05) affected the amount of carcass and its cuts (p>0.05), except the percent of thigh was significantly higher than control group (p<0.05).
  H.A. Tavasoli , M. Eslami , M. Mamouei , M. Chaji and M. Bojarpour
  This experiment was conducted to evaluation the effect of different levels of brown seaweed (Ascophyllum nodosum) or Tasco on carcass characteristics of Arabic lambs in Khuzestan, Iran. This research was conducted as completely randomized design with 3 treatments, 3 replicates and 3 lambs in each replicates. The dietary treatments were formulated according to NRC and containing: control 0, 1 and 2% Tasco. The basic diet includes 16.5% crud protein and 76.6% TDN and Tasco was added top-dress to basic diet. The period of experiment was 10 weeks; Twenty-seven male Arabic lambs (3 months old and 16.09±0.33 kg body weight) were assigned ad libitum to experimental diets. Supplementation of diets with Tasco resulted in decrease of tail-fat percentage (23%) and increased percentage of thigh (12.3%) than control (p<0.05) but adding Tasco had no significant effect on other parameters of carcass characteristics (p>0.05). Also, lambs fed diet contain 2% Tasco in comparison to control, had higher Hot Carcass Weight (HCW) (18.62 vs. 18.47 kg, respectively), Cold Carcass Weight (CCW) (18.20 vs. 17.83 kg, respectively) and Eye Muscle Area (EMA) (19.37 vs. 16.83 cm2, respectively). Meanwhile, supplementation of Tasco in diets decreased abdominal fat weight than those fed no seaweed (0.420, 0.300 and 0.250, respectively).
  T. Mohammadabadi , M. Chaji , M. Eslami and M. Bojarpour
  This study was conducted to evaluate the effect of oak leave tannin (OT, 25 and 45 g kg-1 DM) on in vitro gas production and fermentative parameters of Soybean Meal (SB). Treatments were SB treated with 25 and 45 g kg-1 oak leave tannin (OT1 and OT2, respectively). The results of experiment showed that oak leave caused to reduce the fermentable fraction (b) and gas production rate Constant (c) of SB (p<0.05) and the lowest (b) and (c) was for SB treated by 45 g kg-1 oak leave tannin (104.5 mL, 0.04 mL h-1, respectively). Soybean meal treated with OT2 had the lowest the Organic Matter Digestibility (OMD) and Metabolizable Energy (ME) (153.3 g kg-1 OM, 13.6 MJ kg-1 DM, respectively). Concentration of ammonia-N (NH3-N) and Short Chain Fatty Acid (SCFA) decreased (p<0.05), when SB treated with OT and the highest NH3-N and SCFA concentrations was for untreated soybean meal (36.6 mg dL-1 and 0.88 μmol). Therefore, it may be that in vitro rumen fermentation and nutritive value of soybean meal are influenced by tannin content of oak leave.
 
 
 
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