فهرست مطالب جمشید قیاسی قلعه کندی

120 one-day-old broiler chickens of the Ras 308 commercial strain were randomly placed in 4 treatments including control, 1, 2 and 4 liters of barberry juice in 1000 liters of water. The length of the test period was 42 days, which included the initial period (from the 7th day to the end of the 21st day) and the growth period (from the 22nd day to the end of the 42nd day). According to the results, treatment 1 was associated with a decrease in fertilizer consumption, and treatments 2 and 3 were associated with an increase in fertilizer consumption compared to the control group, and this difference was significant only between treatments 1 and 3 (P<0.05). The best breeding performance with the lowest conversion rate was also obtained in treatment 1. Improvements in various parameters were observed in blood parameters, but the only significant factor was albumin values in treatment 3, which showed a significant decrease compared to the control group (P<0.05). In examining the length of the villi, all the treatments had a significant increase in the first 10%, and the highest increase was related to treatment 1 (P<0.05). Also, treatment 1 showed the highest significant value (P<0.05) in the depth of the leaves. It can be concluded that the use of 1 liter of barberry juice per 1000 liters of water in the poultry diet can have positive effects on weight gain and improve the performance of broiler chickens.

This research performed to study the intestinal microbiology and morphology of male Japanese quails supplemented with two type of edible mushrooms including common (Agaricus bisporus) and oyster (Pleurotus ostreatus) powders. A total of 420 twenty-one day old male quail chicks were randomly allocated to seven experimental treatments. Each treatment consisted of 3 replicates of 20 birds. The birds within the control group were given the basal diet for the respective growth stage. The other six groups were fed experimental diets based on the basal diets containing 0.5, 1, and 2 percent of dried either common or oyster mushroom powders. Birds were allowed to free access to have feed and water during the 84 days of experimental period. Count of coli-form bacteria in the gut and intestinal morphological characteristics were studied at the age of 84 days. Bifidobacteria and Lactobacilli populations were significantly increased (P<0.05) by the 2% mushrooms compared to the control. Total counts (Aerobes) and Escherichia coli were significantly decreased (P<0.05) by the 2% mushrooms compared to the control. Crypt depth and papillae height in parts of 10, 50 and 70 percent's of gut were positively influenced by the supplementation of mushroom (P<0.05). Therefore it seems that mushrooms could be increased useful microflora and prove helpful in the fight against pathogenic organisms colonizing quail chickens.

Co-administration of vitamin E and selenium has positive effects on growth performance of avian species, but their effect is not fully elicited in the Japanese quail. Also, controversial reports exist for the effect of vitamin E and selenium on avian performance. This study was designed to investigate the effect of different levels of selenium (0, 0.2 and 0.4 mg/kg) and vitamin E (0, 150 and 300 mg/kg) in the diet of the Japanese quail. Birds received mesh diet from the start of the study, then selenium and vitamin E were added on day 17. At the end of the study, after food deprivation for 6 hours, Japanese quail (1 male and 1 female) were selected and blood samples collected for biochemical investigations and determination of glucose, albumin, total protein, cholesterol, triglyceride, HDL and LDL levels. There was significant decrease in cholesterol, glucose, and triglyceride levels and significant decrease in albumin and total protein levels on day 35 (p<0.05). Effect of vitamin E and selenium was not significant on serum LDL level but, administration of vitamin E significantly increased serum HDL levels (p<0.05). These results suggest that co-administration of selenium and vitamin E could have positive effects on blood biochemical parameters in the Japanese quail.

The aim of this study was to investigate the effect of in ovo administration of ghrelin on subsequent small intestine Sucrase activity in broilers. In this experiment 900 fertilized eggs were collected from commercial breeder flock. The eggs were divided into five experimental groups; control (without injection), group 2 (in ovo injected with basal solution), group 3 (in ovo injected with 50 μg/egg ghrelin), group 4 (in ovo injected with 100 μg /egg ghrelin) and group 5 (in ovo injected with 150 μg /egg ghrelin). In ovo injection was done at day 7 of incubation. Two broilers from each group have been choose and slaughtered on days 21 and 42 of rearing period and 1, 10, 30, 50, 70 and 90 percent of small intestine sampled for evaluate Sucrase enzyme activity. According to the results, in ovo injection of 100 μg /egg ghrelin increased intestine Sucrase enzyme activity in different parts of small intestine on day 21 post hatch (P0.05). These results suggest that in ovo injection of 100 μg ghrelin had beneficial effect.

The study was designed to investigate the effect of Raffinose and Trehalose on sperm parameters in buffalo bulls after thawing. For this purpose, 20 ejaculates were collected from four buffalo bulls in Northwest Buffalo Research Center. Samples with excellent quality and more than 70% visual sperm motility were diluted at 37◦C in Bioxcell extender with addition of (0, 25 and 75 mM) of Raffinose and (0, 25 and 75 mM) Trehalose. The diluted semen was equilibrated at 4◦C within 4 hours. Then, filled in 0.5 ml French straws and were subjected to cooling condition before being plunged into liquid nitrogen. Semen was thawed at 37◦C for 40 seconds after two weeks of storage inside liquid nitrogen. Sperm motility and some quality parameters of each frozen semen sample were assessed after thawing by warm plate phasecontrast microscope and by CASA evaluation. In general, the results showed that the addition of 0, 25 and 75 mM raffinose and trehalose and interaction of raffinose in trehalose into the Bioxcell extender for freezing buffalo semen did not improved the motility of spermatozoa and some quality parameters after thawing (P>0.05).

Perlite is among silicon volcanic stones and posses a neutral pH and had been admitted in the chemical direction of food. An experiment was conducted to study the effects of perlite on morphology of villi in the small intestine of male broilers. The experimental design was arranged as randomized complete bocks in 4 * 2 factorial arrangement of treatment. 120 male broilers of Ross commercial hybrid (Ross 308) was designated into 2 groups (control and treatment). 3 replicates of 20 birds were assigned to each treatment. Control treatments were fed base diet and treatment with the same base diet plus 2% perlite. Animals were slaughtered and different segments of small intestine(at1,10,30,50,70 and 90% of total length the small intestine) were taken from each replicates (N=2). Morphology of villi was measured and recorded. Data were analyzed by SAS (P

This study was aimed at determining the effect of cysteamine supplement during in vitro maturation of bovine oocytes. Cumulus-oocyte complexes (COCs) from abattoir ovaries were were obtained from local abattoir (Tabriz abattoir, East Azarbaijan, Iran) shortly after slaughter and transported to the laboratory in 0.9% NaCl solution plus 100 IU/ml potassium penicillin G, and 100 μg/ml streptomycin sulfate at 30-35°C, within 2 to 4 h from slaughter. Cumulus oocyte complexes (COCs) from abattoir ovaries were matured in vitro in Hepes-TCM 199 supplemented with 0.2 mM sodium pyruvate, 1 μg/ml 17-β-estradiol, 10% fetal calf serum (FCS), 0.5 μg/ml bFSH and 0 (control) and 0.1, 0.5 or 1 mM/ml of cysteamine for 24 h. When COCs matured in TCM 199 media with 0.1 mM/ml cysteamine, the rate of maturation were increased as compared with control group (46.66 vs 33.33%, respectively). The maturation rate of oocytes in media with 0.5 mM/ml cysteamine (56.55%) was significantly higher than control group (33.33%) (P

Adding fat to the feed palatability, slow food through the intestines and also help absorb fatsoluble vitamins can improve poultry performance. An experiment was conducted to study the effects of different levels of canola oil on Leucine Amino peptidase (LAP) enzyme activity of the small intestine of turkey chicks. This research in a completely randomized design with three levels of canola oil with 0 , 5.2 and 5% with 3 replicates each containing 10 turkey chicks was done. Animals were slaughtered at the end and different segments of small intestine at , 10, 30, 50, 70 and 90% of total length the small intestine were taken from each replicates (N 2) Leucine Amino peptidase enzyme activity was measured and recorded. Data were analyzed by SAS (P

An experimental was conducted to determine the effect of helium neon laser irradiation on the morphology of small intestine of hatched broiler chicks. A total of 225 day old (Ross 308) broiler chicks were used in a completely randomized. Design with 3 treatments in 3 replicates (25 chickens per replicate). Experimental treat were: 1) without laser irradiation (control). 2) 6 mw laser irradiation, for 1.5 minute, 12 hours before incubation. 3) 10 mw laser irradiation, for 1.5 minute, 12 hours before incubation. At the ages of 21,28,36, and 42 days , 2 broiler was selected from each replication, and various sections of their small intestine were sampled in laboratory (1, 10, 30, 50, 70, 90% length of small intestine). And villi length, crypt depth, and their ratio were measured. The results of related to morphology of small intestine (villous length and crypts depth) showed distinguish between treatments were significant (P

An experiment was conducted to study the effects of different levels of perlite on brush-border Alkaline phosphatase activity of the small intestine of male broilers. The experimental design was arranged as randomized complete bocks in 4 * 2 factorial arrangement of treatment. 180 male broilers of ross commercial hybrid (Ross 308) was designated into 3 groups (0,2 and 4 %). 3 replicates of 20 birds were assigned to each treatment. Control treatment were fed base diet and treatments with the same base diet plus 2 and 4% perlite. Animals were slaughtered and different segments of small intestine(at1,10,30,50,70 and 90% of total length the small intestine) were taken from each replicates (N=2) Alkaline phosphatase activity was measured and recorded. Data were analyzed by SAS. (p < 0.05).

As intake of perlite significantly increased alkaline phosphatase activity at weeks and sites of the small intestine of the broiler chicks (p < 0.05), These data suggested that perlite administration improves fat digestion and absorption in broiler chicks. As Alkaline phosphatase is an enzyme responsible for digestion and absorption of long chain fatty acid in the small intestine and as the effect of perlite administration in the diet of broilers on this enzyme had not been investigated the following work had been designed and performed.