Hamidreza Khodaei | Islamic Azad University, Golpayegan Branch, Isfahan, Iran (original) (raw)

Papers by Hamidreza Khodaei

to study the effect of flag leaf and awn removal on grain yield and yield component using Randomi... more to study the effect of flag leaf and awn removal on grain yield and yield component using Randomized complete Block design, at Research farm of college of Agriculture Islamic Azad university of Khorasgan located at Khatoon-Abad. Significant difference was observed between grain yield and yield component except number of grain per spike and number spikelet per spike. In this study the deletion of photosynthetical sources strongly affected the absorbing sinks so that the flag leaf removal without shading on spike, decrease grain yield (%18). In addition to all leaves removal in anthesis with shading on spikes decreased grain yield and 1000 seed weight %77 and %66 respectively. The difference between treatments for protein percent was not significant. The flag leaf is the most important source for photosynthetical matter because it is the last leaf which appearance in the other way owns which lemma and palea are important source to fill the grain. Remobilization of photosynthetical matter in shoots is important factor in filling grain after anthesis than pre anthesis.

To study the effect of cumin (Cyminum) planting on saffron (Crocus Sativus) performance in the fi... more To study the effect of cumin (Cyminum) planting on saffron (Crocus Sativus) performance in the first year of intercropping the experiment was conducted in Complete Randomized Block Design with three replication with saffron as a main plant and the cumin was planted between the saffron row with different plant density (50, 75 and 100 plant per m 2 ) at the Research Farm of College of Agriculture Islamic Azad University of Khorasgan located at Khatoon-Abad. The measured characteristics was yield of flower and stigma, biological yield, number of corm in area and its depth for saffron and grain yield and its component for cumin respectively. The result showed that the different treatments of cumin wasn't significant for measured characteristics in saffron, but this effects was significant for cumin grain yield and its components ( p = 0.01).The decrease of number of umber per plant, number of grain per umber and 1000 grain weight was obtained in increase of Plant per m 2 for cumin. in this study planting of cumin in saffron rows wasn't the negative effect on saffron yield and result showed that the planting of cumin with normal density (75 plant per m 2 ) with sow broadcast In saffron rows produced the highest grain yield.

Conjugated linoleic acid (CLA), a mixture of isomers of linoleic acid, although already 28 differ... more Conjugated linoleic acid (CLA), a mixture of isomers of linoleic acid, although already 28 different isomers of CLA have been identified, but the main isomer found in natural diets c9t11 that more than 90% CLA on food intake constitutes shows. CLA is a substance that readily by rumen microorganisms in ruminants such as cattle and sheep would likely be made. The aim of this experiment was to investigate the effects of CLA on lipid metabolism and increased fat around the muscle durability by reducing the oxidation process. In this experiment, 80 female mice of the Balb / C, 55 days of age were used. Treatments include various levels of CLA which amounts to 0%, 1/0%, 3/0 and 5% / 0% main diet was replaced. In this experiment, 90 days after this period, blood was taken from the tail vein of mice. Serum concentrations of triglycerides, total cholesterol, LDL, HDL and liver enzymes were measured. The oxidative stability of fats TBARS method was evaluated at different times. The results we...

Mast cells in inflammation, fibrosis and hypersensitivity involved. Ketotifen is a member of alle... more Mast cells in inflammation, fibrosis and hypersensitivity involved. Ketotifen is a member of allergy medication that reduces inflammation. The purpose of this study was to evaluate the effect of Ketotifen on some reproductive hormones, spermatogenesis, and immune parameters in male rats. A total of 75male mice of Balb / C were selected and randomly divided into15 groups and kept in the five cages. Mice were exposed for 30 days to the influence of Ketotifen. The experimental groups were consisted of a control group (receiving Ketotifen), treatment 1 (10 mL of Ketotifen), treatment 2 (30 mL of Ketotifen), treatment 3 (50 mL of Ketotifen), respectively. After 30 days, the mice were collected and serum levels of testosterone, free testosterone, FSH, LH, ABP, prolactin, leptin, TNFα, IgE, interleukin-1, cholesterol, TG, HDL, LDL, AST, ALT were investigated. Parallel to that outlines the operations conducted and testes were examined histologically. SAS software for statistical analysis an...

The aim of this study was to investigate the effects of different n-6/n-3 fatty acid ratios in di... more The aim of this study was to investigate the effects of different n-6/n-3 fatty acid ratios in diets on body weight, physical characteristics of bones and plasma biomarkers in rats. Corn oil and flax oil were used as sources of n-6 and n-3 fatty acids, respectively, and by adding different ratios of corn and flax to a basal diet. Twenty Vistar male rats (25 days old) were randomly assigned to four dietary treatments included: treatment 1: basal diet + 5 g flax oil + 2 g corn oil; treatment 2: basaldiet + 5 g corn oil+ 2 g flax oil; and treatment 4: basal diet+ 7 g flax oil. Results showed non-significant effects of n-6 and n-3 or their combination on body weight of rats. The diameter of femur bones was significantly higher in treatment 1 than other treatments. The effect of treatments on length of femur bones was not significant (p<0.05). For calcium content of femur bones, the significant differences were found between treatments. While the dietary n-6 and n-3 fatty acid had no ...

Pioglitazone is the oral anti-diabetic drug and it needs insulin to exert its effects and it redu... more Pioglitazone is the oral anti-diabetic drug and it needs insulin to exert its effects and it reduces insulin resistance in environment. This drug is a potentand specific agonist for PPAR. The purpose of this study is testing the effect of different doses of pioglitazone on the ovulation hormones. This experiment is done in a completely randomized block design and compared with Duncan test. In this experiment 16 sheep with an average of 3 to 4 years and weighing about 60 kg were used. Ewes were randomly divided into 4 groups. The control group received no treatment, treatment1received 10mg of pioglitazone, treatment2 received 20 mg of pioglitazone, treatment 3 received 30 mg of pioglitazone. The pioglitazone treatment was given orally for 42 days. The first blood sampling was performed 2 times first blood sampling was before treatment and the second was after the forty-second days after ram up. In this study, serum concentrations of LH, FSH, estrogen, progesterone, insulin, leptin, c...

Conjugated linoleic acid is composed of polyunsaturated fatty acids (PUFA) that found in dairy pr... more Conjugated linoleic acid is composed of polyunsaturated fatty acids (PUFA) that found in dairy products, beef and lamb. The aim of this study was to determine the effects of different doses of dietary CLA on systemic and local hormones and factors involved in ovulation. In this case-control study, 80 (50±2-day old) female mice were randomly divided into four groups. There were four replicates in each group and there were 5 mice in every replicate (20 mice, in total). The mice in the control group were fed with no CLA in their diet but the ones in the treatment group received 0.1, 0.3 and 0.5g/kg of CLA (replacing corn oil in the diet), respectively for 120 days. Later on, blood samples were obtained from the tails of animals that displayed estrus signs and estradiol, progesterone, LH, FSH, NO, leptin and TNFα were measured. Furthermore, the effects of CLA on the ovarian production of prostaglandins and NO were investigated. The data were analyzed by SAS software. CLA significantly d...

DESCRIPTION accepted for publication in International Journal of Fertility and Sterility (Int J F... more DESCRIPTION accepted for publication in International Journal of Fertility and Sterility (Int J Fertil Steril), Vol: 10, No: 1, Apr-Jun 2016.

we know that Nitric Oxide (NO) plays an important role in all sexual activities of animals. It is... more we know that Nitric Oxide (NO) plays an important role in all sexual activities of animals. It is made in body from NO syntheses enzyme and L-arginin molecule. NO can make band with sulfur-iron complexes and because production of steroid sexual hormones related to enzymes which have this complex, NO can change the activity of these enzymes. NO affects many cells including endothelial cells of veins, macrophages and mast cells. These cells are found in testis leydig cells and therefore are important source of NO in testis tissue. Minimizing damages to sperm at the time of sperm freezing and thawing is really important. The goal of this study was to determine the function of NO before freezing and its effects on quality and viability of sperms after thawing and incubation. 4 Holstein bulls were selected from the age of 4, and artificial insemination was done for 3 weeks (2 times a week). Treatments were 0, 10, 50 and 100 nm of sodium nitroprusside (SNP). Data analysis was performed by...

Conjugated Linoleic Acid is a group of long-chain unsaturated fatty acids with more than one doub... more Conjugated Linoleic Acid is a group of long-chain unsaturated fatty acids with more than one double bond and a mixture of 28 isomers of Linoleic acid (C 18:2) and it is counted as one of the essential acids. The main purpose of this study was to investigate the effect of CLA on some reproductive hormones in rams. In this study, six rams 3 to 4 years old with an average weight of 90 kg were selected. Rams were randomly divided into 3 groups and were treated by CLA treatment for 30 days. The first group (as a control group) didn't receive CLA, The second group received 0.5 gr and the third group received 1 gram of CLA. The blood testing was done on rams every 15 days using a 20 ml syringe. Data analysis was performed by SAS software. Also mean comparison was done using Duncan's test method (p<0.05). Obtained results showed that the serum concentration of testosterone hormone was decreased numerically as well as the concentration of FSH hormone however the concentration of L...

Spermatogenesis is a physiological reaction dependent to harmony of gonadotropins and steroid hor... more Spermatogenesis is a physiological reaction dependent to harmony of gonadotropins and steroid hormones activities. Conjugated linoleic acid is a group of long chain unsaturated fatty acids of a conjugated bound which are found in dairy products, beef and lamb. There are strong reasons that g/kg of food affects mediators involved in spermatogenesis. The aim of this study was determination of effect of various CLA doses on hormones and systemic factors of various CLA doses on hormones and systemic and local factors which affect spermatogenesis. Fifty mature male mice were divided in five groups (T 0 : control, T 1 : placebo and T 2-T 4 : treatment groups). Each group had two replications with four mice in each replication. Samples received control diet (0 g/kg of conjugated linoleic acid) or treatment diet (0.1, 0.3 and 0.5 g/kg of CLA) which was replaced with corn oil of diet. After 30 days, blood samples were taken and level of FSH, LH and testosterone hormones were measured. Data w...

Ovulation is a physiologic process with an inflammatory response that depends on a coordinated ac... more Ovulation is a physiologic process with an inflammatory response that depends on a coordinated activity of gonadotropins and steroid hormones, as well as inflammatory mediators such as cytokines, prostaglandins, leptin, nitric oxide (NO), etc. Conjugated linoleic acid (CLA) is composed of polyunsaturated fatty acids (PUFA) found in dairy products, beef and lamb. There is strong evidence that dietary CLA affects mediators involved in ovulation. The aim of this study was to determine the effects of different doses of dietary CLA on systemic and local hormones and factors involved in ovulation. In this case-control study, 80 (50±2-day old) female mice were randomly divided into four groups (C as the controls and T1, T2 and T3 as the treatment groups). There were four replicates in each group and there were five mice in every replicate (20 mice, in total). The mice in the control group were fed with no CLA in their diet but the ones in the treatment group received 0.1, 0.3 and 0.5g/kg o...

Genetic improvement in broiler speeding but weakened immune system and increased susceptibility t... more Genetic improvement in broiler speeding but weakened immune system and increased susceptibility to disease is Because of the very low levels of antibiotics as growth in poultry diets As well as prophylactic agents are used. The aim of this study was to evaluate the effect of ginger on the immune system of broilers were exposed to Salmonella infection. A total of 160 one-day-old Ross 308 broiler chicks were randomly selected. Chicks were trained over a period of 42 days. Blood was performed. Blood for determination of white blood cells and serum cholesterol concentrations were measured at days 21 and 42. For the statistical analysis software SAS and statistical methods were used in a completely randomized design. Powdered ginger significantly reduces cholesterol and increased white blood cell (P>0/05). Some chicken blood immune parameters that have been exposed to Salmonella infection is increased, which indicates the immune system.

Nitric oxide (NO) is a small fast acting neurotransmitter, which is synthesized From L-arginine b... more Nitric oxide (NO) is a small fast acting neurotransmitter, which is synthesized From L-arginine by nitric oxide synthase. Studies show that NO affects a wide range of reproductive functions. Steroidal hormones synthesis, LH surge during ovulation, follicular growth and ovulation are all affected by NO. Therefore, the objective of this study was to evaluate the relationship between NO and estradiol (E2) production in ovarian follicles and cysts in bovines. Two experiment groups were formed and serum and follicular fluid levels Of NO and estradiol (E2) was measured. In the first group, follicular fluids were obtained from 30 slaughtered cows. Follicles were divided into three groups according to follicular diameter: Small follicles, <5 mm, medium-sized follicles, 5 to 10 mm, and large follicles, >10 mm. 30 follicles were randomly selected within each group. Blood samples were obtained via jugular vein. NO concentrations in blood and ovarian follicular fluids were measured by Gri...

Conjugated Linoleic Acid is a group of long-chain unsaturated fatty acids with more than one doub... more Conjugated Linoleic Acid is a group of long-chain unsaturated fatty acids with more than one double bond and a mixture of 28 isomers of Linoleic acid (C 18:2) and it is counted as one of the essential acids. The main purpose of this study was to investigate the effect of CLA on some reproductive hormones in rams. In this study, six rams 3 to 4 years old with an average weight of 90 kg were selected. Rams were randomly divided into 3 groups and were treated by CLA treatment for 30 days. The first group (as a control group) didn't receive CLA, The second group received 0.5 g and the third group received 1 g of CLA. The blood testing was done on rams every 15 days using a 20 mL syringe. Data analysis was performed by SAS software. Also mean comparison was done using Duncan's test method (p<0.05). Obtained results showed that the serum concentration of testosterone hormone was decreased numerically as well as the concentration of FSH hormone however the concentration of LH wa...