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Articles by J. Barin
Total Records ( 2 ) for J. Barin
  M. Rezaian , A. Yaghoobfar and J. Barin
  In order to evaluate the effects of pellet and mash diets on bacterial count and morphology of the small intestine on broiler chicks, 400 Ross-308 broilers (males) were used. They were divided into 2 treatment groups of 25 randomly selected birds and 8 replications and were housed in 8 pen floors, with controlled temperature and humidity at the rear parts, for 42 days. By termination of the nurturing, when the chicks come of 42 days old, 4 birds per pen were randomly selected and slaughtered. Pellet and mash diets proved no significant effect on the number and activity of small intestinal microflora. Experiments on the morphometry of 3 parts of small intestines showed the increasing in the villus height of ileum, villus width and crypt depth in the jejunum of broilers chicks fed with mashed diet. The results of experiment shown that nutrients and metabolizable energy requirements differences were significantly effects in the villus heights (duodenums and jejunums), crypt depts. (duodenums) and villus widths (ileums and jejunums) of small intestinal of broiler chicks.
  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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