فهرست مقالات microbial population

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  1 - Effect of using different levels of Dill seeds on performance, some blood biochemical and intestinal microbial population in Ross 308 broiler chicks
  یاسر رحیمیان فرشید خیری محمد علوی مهران ابوذر
  10.18869/JHD.2017.21
  Background & Aim:Dill “Anethum graveolens” is an annual medical plantin the celery family “Apiaceae”. It is the sole species of the genus “Anethum”.The health advantages of dill seed include its ability to increasedigestive health چکیده کامل

  Background & Aim:Dill “Anethum graveolens” is an annual medical plantin the celery family “Apiaceae”. It is the sole species of the genus “Anethum”.The health advantages of dill seed include its ability to increasedigestive health, as well as providingrelief from insomnia, hiccups, diarrhea, dysentery, menstrual disorders, respiratory disorders, and cancer. This experiment aimed to determine the effects of using different levels of Dill seeds on performance, some blood biochemical parameters and intestinal microbial population in Ross 308 broiler chicks. Experimental: 300 one-day-old male broiler chickswere divided into the four treatments with six replicates and 15 birds each as randomized design. The treatments contained basal diet with no Dill seeds kept as control, and200,400 and 600 gof Dill seedsper each ton of diets respectively. The live bodyweightsgain, feed intake and feed conversion ratio of birdswere calculated weekly. At the end of the experimentfour male birdsform each replicates were slaughtered and dressing percentage were calculated. In addition, some carcass traits and chick’s visceral partwere weighed separately as percentage of carcass and some organs weight.Results: Data indicated that using Dill seeds increased feed intake (FI) in treatmentscompared to control.Alsobody weight (BW) (g/d) and Pre-slaughter weight (g) were higher in groups that werefed by dill seedscompared to the control. Additionally, therewere significant differences (p<0.05) for feed conversation ratio (FCR) among treatments. Recommended applications/industries: In conclusion, increasing levels of Dill seeds improved performance and some blood biochemical parametersof broilers chicks. پرونده مقاله
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  2 - The Effects of Feeding Iranian Propolis Extracts to Holstein Dairy Cows on Blood Metabolites, Milk Composition and Rumen Microbial Population
  S.  Ehtesham A.R. Vakili M. Danesh Mesgaran V.  Bankova
  The purpose of this study was to investigate the effect of feeding Iranian propolis extract on perform-ance of Holstein dairy cows. In this study 18 dairy postpartum Holstein cows (120 days in milk (DIM) and body weight of 577±37.54 kg) were used. The experiment was car چکیده کامل

  The purpose of this study was to investigate the effect of feeding Iranian propolis extract on perform-ance of Holstein dairy cows. In this study 18 dairy postpartum Holstein cows (120 days in milk (DIM) and body weight of 577±37.54 kg) were used. The experiment was carried out in a period of 29 d (10 d adaptation and 19 d sample collection). The data was analyzed considering a completely randomized design by the GLM procedure of SAS 9.1. In this experiment 3 treatments [A: TMR diet, B: TMR diet + Iranian propolis extract (IPE) 50% (67.50 g/day/animal) and C: TMR diet + IPE 75% (67.50 g/day/animal)] were used. The results of this study showed that adding different concentrations of IPE to dairy cow ration did not have any significant effect (P>0.05) on ruminal pH, but significant de-crease (P0.05) change some the blood parameters while statistically changed (P<0.05) the blood concentrations of aspartate ami-notransferase, albumin, glucose and protein. The phenolic compounds in propolis changed rumen ni-trogen ammonia, rumen short chain fatty acids, rumen microbial population, some blood parameters and fatty acid composition in the milk. These changes improve fermentation process and consequently affect significantly fatty acid composition in milk. پرونده مقاله
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  3 - The Effect of Various Dietary Fibre Sources on Performance, Cecal and Ileal Nutrient Digestibility in Broiler Chickens
  Y.  Mohammadi A.A. Saki S.  Mirzaei Goudarzi A.  Ahmadi Z. Bardel S.  Mohammadian
  This experiment was conducted to investigate the effects of different sources of insoluble fiber on perform-ance, gastrointestinal tract characteristics, and nutrient digestibility in the broiler's ileum, and cecum. A total of 380-day-old chickens of ross 308 unsexed we چکیده کامل

  This experiment was conducted to investigate the effects of different sources of insoluble fiber on perform-ance, gastrointestinal tract characteristics, and nutrient digestibility in the broiler's ileum, and cecum. A total of 380-day-old chickens of ross 308 unsexed were arranged into 5 treatments, 4 replicates, and 19 chickens in each, by completely randomized design (CRD). Experimental treatments included 1: control (corn-soybean meal) 2: arbocel (synthetic fiber) 1% in diet, 3: sunflower hulls (3% in diet), 4: soybean hull (3% in diet), 5: processed wheat straw (3%in diet). Observed parameter include: performance (feed intake, feed conversion ratio and body weight gain), gastrointestinal pH, gastrointestinal viscosity and digestibility of dry matter and protein in ileum and cecum and microbial population in ileum and cecum. The results have shown that the inclusion of 3% sunflower hulls in diets leads to the higher average feed intake from 1 to 10 days of age rather than control (P<0.05). In comparison between the ileum and cecum showed that the higher viscosity by Arbocel® in the cecum and the lowest viscosity showed by wheat straw in the ileum (P<0.05). On the other hand, the digestibility of protein and dry matter in the ileum was higher than the cecum (P<0.05). According to the results of this study, it could be noted that all fibers are considered in-soluble fibers and their different behavior in the gastrointestinal tract. The diet Arbocel® has generally led to physicochemical changes (digesta pH and viscosity) and microbial populations. It could be the most im-portant reason for these observations which is related to insoluble fiber particle size and their processing. In addition, reduced dry matter and protein digestibility in the cecum in comparison to the ileum status. Fi-nally, digest pH, viscosity, dry matter and protein digestibility were reduced by insoluble fiber in cecum in comparison to ileum. پرونده مقاله