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Articles by H. Fazaeli
Total Records ( 3 ) for H. Fazaeli
  A. Afzalzadeh , A. Boorboor , H. Fazaeli , N. Kashan and D. Ghandi
  Using four Zandi sheep, digestibility and degradability of bakery waste and barley grain were determined by in vivo and in situ methods. The digestibility and degradability of bakery waste were 78.8 and 74.6 and that of barley grain were 86.8 and 77.1%, respectively. Twenty eight Zandi male lambs were fattened for 85 days with 4 experimental diets composed of 0, 6, 12.5 and 25% bakery waste in a completely randomized design. The lambs were slaughtered and the carcass traits, internal fat and tail-fat fatty acid concentration, iodine and saponification indices were determined. The effect of diets on dry matter intake, final live weight, average daily gain, Feed Conversion Ratio (FCR), carcass weight, internal fat weight, fat-tail weight, the palmitic and oleic acid contents of fat-tail and internal fat, saponification index and the fat-tail linoleic acid concentrations were not significant (p>0.05). The effect of diets on the internal fat and fat-tail iodine index and internal fat linoleic acid concentrations were significant (p< 0.05). It is concluded that bakery waste can be included up to 25% of the fattening diets of the lambs without adversely affecting performance, with a resultant improvement in the quality of the tail fat and internal fat.
  H.R. Shahbazi , A.A. Sadeghi , H. Fazaeli , G. Raisali , M. Chamani and P. Shawrang
  Samples of barley straw were irradiated with various doses of electron beam (100, 200 and 300 kGy) to evaluate the effects of electron beam irradiation on Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) degradation. Nylon bags of untreated or irradiated barley straw were suspended in the rumen of three Taleshi bulls for up to 962 h and resulting data were fitted to non-linear degradation model to calculate degradation parameters of NDF and ADF. Results showed that the washout fractions (a) and the potentially degradable fraction (b) of NDF and ADF of barley straw increased linearly (p<0.001) as irradiation dose increased. The degradation rate of the b fraction of NDF of barley straw decreased as irradiation dose increased (linear effect, p<0.001), but this fraction in ADF of samples was the highest at dose of 100 kGy. Effective degradability of NDF and ADF of samples increased linearly (p<0.001) with increasing irradiation dose. Electron beam irradiation at doses of 100, 200 and 300 kGy increased the effective degradability of NDF and ADF at rumen outflow rate of 0.05 h 1 by about 3, 4 and 5% for NDF and 3, 6 and 8% for ADF, respectively. In the condition of this study, electron beam irradiation at dose of 200 kGy appeared to be a suitable dose for improving NDF and ADF degradability of barley straw in the rumen.
  A. Yaghobfar , Rezaian , M. Ashrafi-Helan , J. Barin , H. Fazaeli and Sayed Davod Sharifi
  The purpose of the present study was to indicated (evaluate) the effect of hull-less barley dietary on the morphology of the small intestinal wall and ileal microbial activity layer hens fed hull-less barley in diet. The results of experiment shown that the inclusion of hull-less barley in the diet had no effect on the bacterial activity as total counts of bacteroidaea, Lactobacillus bifidobacterium and clostridium in small intestinal of layer hen. In the present study, has shown that the hull-less barley influence on the total number of aerobes and anaerobes intestinal bacterial. This can be undigested nutrients enter the lower part of the small intestine, where microbial growth will be increased. The hull-less barley had effect on the villus height, villus width and crypt depth in the duodenum, jejunum and ileum of small intestinal of bird compared to control group. Across all groups, the villus height, villus width, crypt depth in the duodenum was greater than those in the jejunum and ileum and this is consistent with the significant role that the duodenum plays in nutrient absorption. The finding of result of present study as the inclusion of hull-less barley in the diet the number of density of goblet cells in the ileum greater than those in the jejunum and duodenum of small intestinal in birds. However, goblet cells are responsible for the secretion of mucin that is used for the mucinous lining of the intestinal epithelium. Based on the results of the present study, it can be stated that NSP as β-glucan content of hull-less barley concentration in diets of birds change microbial activity or population and the morphology of the small intestinal wall. The magnitude of these changes depends on the degree.
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