Reza Khademian Raad; Seyed Ebrahimi Hosseini
Abstract
Abstract Human studies have great challenges in understanding the pathogenesis of polycystic ovary syndrome due to ethical and practical limitations and animal models have high value in the study of this syndrome. Regarding estrogenic properties of royal jelly, the aim of this study was to investigation ...
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Abstract Human studies have great challenges in understanding the pathogenesis of polycystic ovary syndrome due to ethical and practical limitations and animal models have high value in the study of this syndrome. Regarding estrogenic properties of royal jelly, the aim of this study was to investigation of establishment possibility of royal jelly-induced polycystic ovary syndrome disorder model in rat. In this experimental study,40 adult virgin female rats strain weighing 180±20grwere divided in 5 groups of 8. control group without treatment, sham group received normal saline as treatment solvent and 3 experimental groups respectively intraperitoneally injection received 250, 500 and 1000mg/kgBW of royal jelly for 21 days.At the end of the treatment period the blood samples were taken from all groups, serum concentration of sex hormones were measured and the follicles were counted by isolating the ovaries and preparing the tissue sections. The data were analyzed using one-way ANOVA. The results of this study showed that the serum concentration estradiolhormone and the number of primordial follicles in the 250mg/kgBW recipient group were significantly increase than control group (p<0.05); Also ovarian cysts were not observed in histopathologic examination of ovarian tissue. Royal jelly increases serum concentration estradiol hormone and the number of primordial follicles at a minimal dosage but with increasing does not changes in serum concentration of sex hormones also tissue and ovarian function.
Amir Dehghani Samani; Yaser Pirali; Mehdi Salimi; Nader Ahmadi Saleh Baberi; Habib Allah Rashidzadeh
Volume 7, Issue 1 , September 2018, , Pages 73-80
Abstract
Abstract Ticks, as usual groups of ecto-parasites, have abundant importance in medicine due to their ability in conservation and transmission of important pathogens like zoonotic pathogens. They choose different species as host including; mammals, reptiles and birds. Hedgehog, a mammal species which ...
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Abstract Ticks, as usual groups of ecto-parasites, have abundant importance in medicine due to their ability in conservation and transmission of important pathogens like zoonotic pathogens. They choose different species as host including; mammals, reptiles and birds. Hedgehog, a mammal species which is related to humans and animals, can be infested by ticks. Aim of current study is identification and description of ticks fauna in native hedgehogs located in central parts of Iran. Six hedgehogs were collected from rural areas in Najafabad (Isfahan province) and 10 ticks were collected from different part of their bodies in examination. Ticks were temporary preserved in solution contained 95% Etanol 70° plus 5% glycerin and then were cleared via KOH, mounted and observed by light microscope and their identifications were confirmed via wallker tick systematic keys. Ticks were identified as Rhipicephalus appendiculatus, Rhipicephalusturanicus and Haemaphysalis concinna. This study reports the hedgehog's infestation by Haemaphysalis concinna for the first time in Iran. Recognition of new hosts for ticks and dimension of their dispersion are first steps in order to solve their problems. Presence of ticks on new hosts and their resistance against pesticides are also important subjects that must be considered more than past.
Sina Taghvimi; Marzieh Asadi; Homayoun Khazali
Abstract
Previous studies have shown that ghrelin inhibits the activity of Hypothalamus-Pituitary-Thyroid (H-P-T) axis. It is also proved that ghrelin increases the appetite via Agouti Related Protein and neuropeptide Y Pathway, decreases T3 and T4 secretion. Also morphine by effect on Pituitary hormones like ...
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Previous studies have shown that ghrelin inhibits the activity of Hypothalamus-Pituitary-Thyroid (H-P-T) axis. It is also proved that ghrelin increases the appetite via Agouti Related Protein and neuropeptide Y Pathway, decreases T3 and T4 secretion. Also morphine by effect on Pituitary hormones like TSH decreases T3 and T4 concentrations. Thus, the goal of this study was to determine the influence of the interaction between ghrelin and morphine on thyroid hormones concentration. Twenty one male Wistar rats weighing 200-250 g were randomly divided into 3 groups. The groups received 5 nmol ghrelin, 1µg morphine or 5 nmol ghrelin together with 1µg morphine in third cerebral ventricle in volumes of 3 μl .The blood samples were collected every day. Starting one day before and up to one day after injections. Brain slices were taken to ensure that the place of the canulae was right. The plasma was analysed by Radioimmunoassay technique to determine T3 and T4 concentrations. The results showed that the i.c.v injection of ghrelin and morphine significantly decreased the mean plasma concentrations of thyroid hormones (P<0.05). Co-administration of these two substances in some of groups showed that decrease mean plasma concentrations of thyroid hormones (P<0.05). This study showed that ghrelin and morphine significantly decreased mean plasma concentration of T3 and T4. Co-administration of two substances in some of groups showed that decrease mean plasma concentration of thyroid hormones (p<0.05).
Morteza Kamali; Saeid Alinejad Moaelem; Nastaran Pour-Ahmadi
Abstract
Abstract Due to its suitable properties and the low cost; Di 2-Ethyl Hexyl phthalate (DEHP) is widely used as a plasticizer in manufacturing of articles made of PVC. This substance is of paramount importance with the estrogen-like properties and its effects on the survival and health of ecosystems and ...
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Abstract Due to its suitable properties and the low cost; Di 2-Ethyl Hexyl phthalate (DEHP) is widely used as a plasticizer in manufacturing of articles made of PVC. This substance is of paramount importance with the estrogen-like properties and its effects on the survival and health of ecosystems and the aquatic and human populations. In present study; effects of toxicity of DEHP on protein band model and amino acid profile of mucus common carp (Cyprinus carpio) was studied. 108 common carp (17.60±2.22gr) is gathered from warm water fish center and they were allocated into 9 tanks (12 Fish per tank). Fish adapted to new condition for a week. During this time; they were feed twice a day with same diets. Fishes were exposed at 3 concentration treatments containing 0; 0.1 and 1 mg/L DEHP under laboratory condition (25±0.5°C; pH: 7.4-8) for a period of 96 hours. We assessed skin mucus protein profiles by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and we were studied amino acid profile by HPLC. The results of the experiments to compare the protein pattern of carp’s mucus (exposed to DEHP with two different concentrations) with the control sample (without exposure to DEHP) showed that there is a significant difference in the bands density between the two protein patterns. These results indicated that concentrations of DEHP beneficially affects Amino Acid profiles of skin mucus in carp and they were categorized in 4 branches. There were Significant differences between exposed and control groups. Therefore; fish skin mucus can be a biomarker for showing contaminants and toxins. And the high consumption of plastic materials can be a warning to the health of aquatic animals and humans.
Elham Hoveizi
Abstract
Lung cancer is one the most common cancer in the world and Iran that lead to many deaths. Despite abundant researches, an appropriate cure has not been yet found for cancer. Citrus extract contains abundant anti-oxidative compounds. In this research evaluated and compared the toxic effect ...
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Lung cancer is one the most common cancer in the world and Iran that lead to many deaths. Despite abundant researches, an appropriate cure has not been yet found for cancer. Citrus extract contains abundant anti-oxidative compounds. In this research evaluated and compared the toxic effect of Citrus leaves hydroalcoholic extracts on the proliferation and viability of A459 cancer cells. Citrus leaves extracts were prepared by soxhlet set. A549 cells were proliferated and treated with 0.05-10 mg/ml concentrations of extracts for 72h. Cell viability and morphology were evaluated by MTT assay and acridine orange staining on certain times after treatment. Comparison of the cell viability percent in experimental groups indicated that IC50 were 2, 6, and 8 respectively for Citrus limon, Citrus reticulata, and Citrus aurantium leaves extract (P<0.05). Also, number of apoptotic cells was significantly (P<0.05) more in C.lemon group than C. reticulata and C. aurantium group and indeed, number of apoptotic cells were significantly (P<0.05) more in C. reticulata group than C. aurantium group. Citrus leaves hydroalcoholic extract can induce apoptosis in A549 cells in a dose and time-dependent manner.
Hasan Baghshani; Vahide Ghodsi
Volume 6, Issue 1 , May 2017, , Pages 81-89
Abstract
Chronic cyanide intoxication has been shown to induce damage in various tissues. In the present study the effects of chronic exposure to potassium cyanide (KCN) on some oxidative stress-related parameters as well as Modulatory effects of garlic powder were studied. 18 male wistar rats were assigned into ...
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Chronic cyanide intoxication has been shown to induce damage in various tissues. In the present study the effects of chronic exposure to potassium cyanide (KCN) on some oxidative stress-related parameters as well as Modulatory effects of garlic powder were studied. 18 male wistar rats were assigned into three groups, 6 in each group. Group 1 served as control group. Group 2 received cyanide (KCN, 500 mg/L) in drinking water for 42 days. Rats in Group 3 received water containing KCN (500 mg/L in drinking) and also were fed a diet containing 5% garlic powder for 42 days. Cyanide caused increase in malondialdehyde (MDA) concentartins in all studies tissues, although the increase was only significant (P has modulatory effect on cyanide-induced oxidative stress damage in rat and could have therapeutic and prophylactic effects on cyanide poisoning.
Behjat Majidi; Mohsen Fathi Najafi; Shahriar Saeedian
Abstract
Brucella sp. Lumazine synthase, the enzyme involved in riboflavin biosynthesis composed of 10 identical subunits. According to extended applications of LS, it is necessary to set up a high yield expression and purification method for this enzyme.in current study, Lumazine synthase primary structure ...
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Brucella sp. Lumazine synthase, the enzyme involved in riboflavin biosynthesis composed of 10 identical subunits. According to extended applications of LS, it is necessary to set up a high yield expression and purification method for this enzyme.in current study, Lumazine synthase primary structure was achieved from NCBI database and it was expressed by pET28a in BL21 E. coli. The optimum concentrations of IPTG and Kanamycin was evaluated and applied for high yield expression of rBLS. For LPS removal and purification of protein, ammonium precipitation and ion exchange chromatography were performed and no background in ELISA (against Brucella) was observed. ELISA and Western Blotting techniques were applied for expression and purification confirming. For monitoring of purification, SDS-PAGE was applied. Purification of protein with DEAE sephadex (Diethylaminoethyl) resulted in a single band purified rBLS. The approach applied in this study can be used in generation a relatively pure rBLS as a valuable recombinant product in vaccine industries.
maryam morovati; Zahrasadat Hoseini; Fatemeh Bahadori Amjas
Abstract
Abstract
This study was done with the aim of evaluating the Iranian Gazella’s habitat in Kalmand Bahadoran protected area with multi-criteria evaluation model (MCE). The habitat variables used in the modeling were including: slope, geographic orientation, height, density and flora, water resources, ...
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Abstract
This study was done with the aim of evaluating the Iranian Gazella’s habitat in Kalmand Bahadoran protected area with multi-criteria evaluation model (MCE). The habitat variables used in the modeling were including: slope, geographic orientation, height, density and flora, water resources, agricultural fields and human habitats. At the first, the variables was prepared for modeling in the IDRISI software 17 version. Then the limitation layers for the Iranian Gazella habitat include slope of more than 10%, height greater than 1600 m, a 100-meter privacy of Human habitats, 500 meters from main roads, 5 kilometers from agricultural fields, 10 kilometers from water resources, achieved with the Bolin algorithm in IDRISI software. Also to determine the weight of each variables, the hierarchical method was used in Idrisi software (IDRISI). The results of variables ranking showed that among used variables, the road variable had the highest weight and the height variable had the lowest. The results of the desirability level assessment in the Kalmand and Bahadoran region showed that the highest level of the region (56.01%), for Iranian Gazella, has moderate utility. Therefore, it can be stated that the Calmand Bahador region is a Gazella area and is relatively good habitat for this species which can improve the desirability level of habitat in the region by managing and planning. The results of this study can be used in implementing conservation and management measures to increase the desirable habitats in Yazd province.
Seyed Reza Pourrabi; Mahbobeh 2 Hajirostamlo
Volume 6, Issue 3 , March 2018, , Pages 85-94
Abstract
The rodents order is the largest class of mammalians; and they are very important in the medicine and agriculture. During of faunistic study on rodent order (Order: Rodent) in Marand region (East Azerbaijan province), North west of Iran, from 2012 to 2015, 6 ...
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The rodents order is the largest class of mammalians; and they are very important in the medicine and agriculture. During of faunistic study on rodent order (Order: Rodent) in Marand region (East Azerbaijan province), North west of Iran, from 2012 to 2015, 6 Species collected and diagnostic. In this research, species were collected from the mountains, farms, villages and houses by traps and poisonous baits. The rodents recognized in Marand region are: 1- Mus musculus, 2- Ellobius fuscocapillus, 3- Microtus socialis, 4- Apodemus sylvaticus, 5- Meriones persicus,6- Cricetulus migratorius. Their figure and a simple diagnostic key are provided to determin of them in this region.
Biophysics
Amir Sabet
Articles in Press, Accepted Manuscript, Available Online from 01 December 2013
Abstract
Nowadays the world is full of some less known species of signals which connect us together. So human beings are continually exposed to electric, magnetic and electromagnetic fields. In order to investigate the effects of magnetic fields on cell survival, bone marrow mesenchymal stem cells were exposed ...
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Nowadays the world is full of some less known species of signals which connect us together. So human beings are continually exposed to electric, magnetic and electromagnetic fields. In order to investigate the effects of magnetic fields on cell survival, bone marrow mesenchymal stem cells were exposed to 15 mT static magnetic field in the presence and the absence of 0.5 gray X-ray. The rate of dead cells didn't show a significant difference when the cells were treated with static magnetic field alone. But after an acute exposure with the ionizing radiation, the field increased the percentage of survived cells significantly and rescued a part of X-ray induced apoptotic cells. These data show that static magnetic field treatment, suppresses apoptosis and promotes survival in bone marrow stem cells of rat. Thus, magnetic fields might act as a co-mutagenic and co-carcinogenic agent with increasing the risk of tumor development by inhibiting apoptosis.
T. Tanha; H. Amanlo; M. Fathi
Volume 1, Issue 2 , November 2012, , Pages 57-65
E. Hosseini; M. Heydari
Volume 1, Issue 4 , July 2014, , Pages 57-63
Mohamd Taghdisi; M Kaboli2; A ّFarashi
Volume 2, Issue 1 , March 2014, , Pages 57-63
Abstract
Carnivores play great ecological roles in ecosystems because of placing on top of the food pyramid. Food habits of large carnivores are associated with important ecological features such as spatial pattern, movement, habitat selection, social structure, geographical distribution and reproductive success. ...
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Carnivores play great ecological roles in ecosystems because of placing on top of the food pyramid. Food habits of large carnivores are associated with important ecological features such as spatial pattern, movement, habitat selection, social structure, geographical distribution and reproductive success. Accordingly, in this study was used scat analysis to determine the diet of persian leopards in Sarigol National Park using percent of occurrence index. The results showed that diet of leopards in the Sarigol National Park includes a high diversity of wild boar (Sus scrofa), wild goat (Capra aegagrus), wild sheep (Ovis orientalis), tolai hare (Lepus tolai), common fox (Vulpes vulpes), Indian crested porcupine (Hystrix indica), domesticated animals; dog, horse, bird and plant materials. Wild sheeps have the largest share and rabbits and horses have the lowest share in the diet of this species. Undoubtedly, identifying food habits of leopard and maintaining prey populations can improve management programs and conservation status.
A Mir-Aali; A A. Movahedi-Nia; R Abdi; Salati M. P.
Volume 3, Issue 1 , January 2015, , Pages 59-64
Abstract
Abstract 144 juvenile Sobaity, Sparidentex hasta, after acclimation to laboratory conditions and sea water (40ppt) for one week, sea water was used with different salinities (5, 20 and 60ppt) and seawater (40ppt) as control. Samplings were performed at 6 and 12 hours, 1, 2, 7 and 14 days after the time ...
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Abstract 144 juvenile Sobaity, Sparidentex hasta, after acclimation to laboratory conditions and sea water (40ppt) for one week, sea water was used with different salinities (5, 20 and 60ppt) and seawater (40ppt) as control. Samplings were performed at 6 and 12 hours, 1, 2, 7 and 14 days after the time of changing in environmental salinities. Blood samples were collected for plasma cortisol, glucose and electrolytes analysis. According to the results, plasma levels of cortisol showed significant increases in 5 and 60 ppt environment in relation to control and 20ppt groups 12 hours from the beginning of the experiment. However in 24h samples up to the end of the experiment (14days) there were no significant differences among treatments. Plasma glucose levels showed a significant increase only at 12h sampling time in relation to 6 and 24hours in fish adapted to 5 and 60ppt. Plasma Ca++ concentrations had no significant changes during experiment. Plasma Mg++ amounts decreased significantly in 5 and 20 ppt groups in relation with control at 24 h sampling time. In conclusion, cortisol has important role in adaptation to both 5 and 60ppt at the beginning of the exposure, because of its significant increase at just 12 hours in 5 and 60 ppt than the controls, but the role of cortisol has been replaced with other changes in osmoregulatory related tissues and cells according to the plasma cortisol amounts in 5 and 60ppt that returned to the basic levels.
M. Khaleghi
Volume 2, Issue 2 , September 2014, , Pages 61-69
Abstract
To identify the species of sea cucumbers belong to Holothuroidea in the intertidal zones of Chabahar Bay, field studies were conducted during one year from November 2008 to September 2009. The area of study was located at the farthest end of southeast of Iran in province of Sistan and Balouchestan between ...
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To identify the species of sea cucumbers belong to Holothuroidea in the intertidal zones of Chabahar Bay, field studies were conducted during one year from November 2008 to September 2009. The area of study was located at the farthest end of southeast of Iran in province of Sistan and Balouchestan between 25°16́́ 61̋ and 25°22́ 47 ̋ North, and between 60°39́ 90 ̋ and 60°24́ 38 ̋ East. 5 sampling stations along the shoreline zone was determined based on geomorphological characteristics, habitat and accessibility. Bimonthly Sampling was carried out in the selected stations in complete tide and all samples of each species were collected. Then samples were transferred to laboratory and identified based on extracted ossicles with valid identification keys .the four species of sea cucumbers were identified: Holothuria leucospilota, Holothuria arenicola, Holothuria insignis, Holothuria sp. Which bolnge to family of Holothuroidae and order of Elasipodida. The Maximum frequency of Holothuroidea Was measured in January (2009) in station 4.
Mohamadhasan gerami; Seed Yosef Peghambari; rasoul Ghorbani
Volume 2, Issue 3 , January 2014, , Pages 63-74
Abstract
Abstract
This study, aimed to achieve carapace length frequency, depth distribution, determining biomass and length-weight relationship of Metapenaeus affinis in shrimp fishing grounds of Hormomzgan province. Sampling was carried out by Trawl net and swept area method from January 2010 to February 2011. ...
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Abstract
This study, aimed to achieve carapace length frequency, depth distribution, determining biomass and length-weight relationship of Metapenaeus affinis in shrimp fishing grounds of Hormomzgan province. Sampling was carried out by Trawl net and swept area method from January 2010 to February 2011. Samples were transferred to the laboratory and biometric information entered on special forms. Maximum Carapace length was 35 and 47 mm for males and females, respectively. Maximum Carapace length frequency was belonged to 20-22 mm range for both sexes. Also maximum carapace length of population was found in March for both sexes. Length-weight relationship was W = 3E-06TL3.1465 for males and W = 4E-06TL3.149 for females. According to the b factor, Metapenaeus affinis had a positive allometric growth. Biomass of M. affinis was calculated 822 ton in 2011. In the distribution of deep layers, it was found that maximum biomass was related to layer 10-20.
Articles in Press, Accepted Manuscript, Available Online from 22 May 2014
Abstract
Abstract Inthis survey anatomical and histological aspects of testis and seminiferous tubules during post-hibernation period in Laudakianupta inhabiting the north of Lorestan province in Zagros Mountains were investigated. To execute this task male lizard’s samples were collected from the ...
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Abstract Inthis survey anatomical and histological aspects of testis and seminiferous tubules during post-hibernation period in Laudakianupta inhabiting the north of Lorestan province in Zagros Mountains were investigated. To execute this task male lizard’s samples were collected from the study area during April to September for two consecutive years. In the laboratory gonads were removed and passed through fixation, dehydration, clearing, infiltration and embedding stages. By means of a rotary microtome serial sections were cut and stained by Haematoxylin-Eosin. Using light microscopy, quantitative and qualitative examinations were then performed on the sections. Our results revealed that during April to September the diameter of seminiferous tubules and the thickness of germinal epithelium constantly decrease. In addition, during the April and May the germinal cells are undergoing the meiosis or maturing process but no spermatozoid is found in the tubules yet. During June and July, the spermatogenesis process reaches to its maximum peak and mature spermatozoa are constantly released into the tubules lumen. During August to September, the production of sperm ceases and the tubules begin a reduction process. In general, the results displayed that the type of spermatogenesis in this taxon is classified as associated and spermatogenic activity peaks when there are high temperatures and long photoperiod which coincides with June and July.
Kobra Ayase; Rasool Zamani-Ahmadmahmoodi; Fatemeh Shabazi; Hamid Soudaeizadeh
Volume 4, Issue 2 , December 2015, , Pages 63-68
Abstract
Abstract Studies have shown that birds due to being in the high trophic levels on the ecosystems, and also high sensitivity to toxic substances are a useful indicator for the evaluation of mercury pollution. The objective of the present study was to evaluate mercury level in the feathers of Turdus philomelos ...
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Abstract Studies have shown that birds due to being in the high trophic levels on the ecosystems, and also high sensitivity to toxic substances are a useful indicator for the evaluation of mercury pollution. The objective of the present study was to evaluate mercury level in the feathers of Turdus philomelos and Turdus merula in khanikan forests as an indicator of mercury contamination. To attain this aim, 37 samples belonging to two species were collected from khanikan forests, located in southern part of Noushahr and Chalous cities. Feather samples were removed in the lab. Level of mercury was determined by Mercury Analyzer AMA 254. Statistical analyses were performed using SPSS software. According to the results of this study, mercury levels in feathers of Turdus philomelos (0.98 µg/g) and Turdus merula (0.94 µg/g) was too lower than standard limit (5 µg/g) , and also there was no significant difference between two species in terms of mercury level. These results showed that habitat of these species were not heavily polluted by mercury. According to biomagnification of mercury in trophic levels, can be concluded that because of seed eating habits of Turdus philomelos and Turdus merula , low levels of mercury accumulated in feathers of these species
M. SEIDGAR; A. NEKOUIE FARD; M. HAFEZIEH
Volume 3, Issue 2 , March 2015, , Pages 67-74
Abstract
This study was performed to determine the effect of Phallocryptus spinosa as a diet on fecundity and hatching performance of 4 trade valuable prawn ornamental fish genera, including Angel Fish (Pterophyllum scalare), Green Tailor (Aequidens rivulatus), Gourami (Trichopodus trichopterus) , and Afra (Cynotilapia ...
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This study was performed to determine the effect of Phallocryptus spinosa as a diet on fecundity and hatching performance of 4 trade valuable prawn ornamental fish genera, including Angel Fish (Pterophyllum scalare), Green Tailor (Aequidens rivulatus), Gourami (Trichopodus trichopterus) , and Afra (Cynotilapia afra). Prawn ornamental fish genera, were studied in two test groups feeding with cow heart and spinach – and fairy shrimp (Phallocryptus spinosa) in one treatment and two replicates for a month in controlled condition and sultable for each genera. Also, additionally, all fish were fed granulated concentrate daily. Between group comparison in each genera showed a significant difference (pPhallocryptus spinosa can increase reproductive performance in mentioned prawn ornamental fish.
M. Bayati; R. Patimar; M. Farhangi; M. Farhangi; M. Forouhar Vajargah
Volume 3, Issue 4 , July 2015, , Pages 67-78
Abstract
Abstrac The aim of this study was to determinate the effect of trout farm sewage on fecundity and diversity of macro invertebrate benthoses with some biological indices. This study was done on the Marber River in Semirom city, the southwest area of Isfahan province. Sampling was took place in five stations ...
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Abstrac The aim of this study was to determinate the effect of trout farm sewage on fecundity and diversity of macro invertebrate benthoses with some biological indices. This study was done on the Marber River in Semirom city, the southwest area of Isfahan province. Sampling was took place in five stations on summer of 2012, monthly using a Surber sampler (30.5cm×30.5 cm). Sampling in each station was done in three points (edges and middle of the river). Captured samples were fixed in 4% formalin and were taken to the laboratory. In laboratory animals were collected with a sieve of 500 microns in diameter springs to assort and identify to the least level possible (families and genera). In this study, several biological parameters such as: Abundance, Biomass, Similarity, Shannon-Wiener, EPT/ Chironomidae, Margalef richness, Hylsnhvf, BMWP index and ASPT index was used. Eventually 20 families, with 10 orders, 7 classes and 5 phyla were identified.
Mahmoud Nafisi Bahabadi; Vahid Morshedi
Volume 4, Issue 1 , September 2015, , Pages 67-78
Abstract
At the present work, effects of salinity were studied on growth and feeding performance, survival rate and blood biochemical parameters of pre on-growing rainbow trout (Oncorhynchus mykiss) with initial weight 93.22±4.11 g for 60 days. After adaptation to water salinity for 10 days, 450 fish were ...
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At the present work, effects of salinity were studied on growth and feeding performance, survival rate and blood biochemical parameters of pre on-growing rainbow trout (Oncorhynchus mykiss) with initial weight 93.22±4.11 g for 60 days. After adaptation to water salinity for 10 days, 450 fish were distributed in 5 treatments and 3 replicates according to a complete randomized design. Before adaptation to water salinity 1, 10, 25 and 50 days after introduction to a different salinity with in (10, 20, 30 and 40 ppt), growth and feeding parameters and some blood biochemical parameters were investigated. According to the obtained results of study, increase salinity up to 20 ppt, growth and feeding parameters significantly decreased including daily growth rate, specific growth rate, feed conversion efficiency between salinity groups and control group (P<0/05) and higher salinities (30 and 40 ppt), caused gregarious mortality. During the experiment, blood biochemistry parameters including osmolality, chlorine, sugar, cortisol, tri-iodo thyronin(T3), and Tetra–iodo–thyronin (T4) significantly increased with increasing water salinity (P<0/05). Overall, the obtained results indicated that rainbow trout with initial weighing 90 g, could be cultured successfully in water with salinity up to 20 ppt, although fish growth rate is lower than that in the fresh water.
Articles in Press, Accepted Manuscript, Available Online from 20 February 2015
Abstract
Abstract The present study was investigated artichoke extract in drinking water on performance, carcass characteristics and some blood parameters concentrations such as Triglyceride, Cholesterol, very low density lipoprotein (VLDL), low density lipoprotein (LDL) and high density lipoprotein (HDL) in ...
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Abstract The present study was investigated artichoke extract in drinking water on performance, carcass characteristics and some blood parameters concentrations such as Triglyceride, Cholesterol, very low density lipoprotein (VLDL), low density lipoprotein (LDL) and high density lipoprotein (HDL) in broiler chickens. Experiment was used by randomized complete block design (RCBD) with 200 broiler chickens consisted of 5 treatments 0, 100, 200, 300 and 500 milligrams artichoke extract per water liter at four replicates per treatment and 10 chickens per replication during 21-35 days of age. Artichoke extract had any significant effect on feed intake, body weight gain, feed conversion ration and carcass characteristics. Artichoke extract had any significant effect on the blood parameters in broiler chickens during 35 day of age. It can be concluded that inclusion extract of artichoke up to 500 milligrams per liter has no beneficial consequences on performance and blood serum fat constituents.
Z. Boroumandnia; S. Mohammadzadeh; M. Azizi; M. khaldari
Volume 3, Issue 3 , May 2015, , Pages 71-79
Abstract
Abstract The present study was investigated artichoke extract in drinking water on performance, carcass characteristics and some blood parameters concentrationssuch as Triglyceride, Cholesterol, very low density lipoprotein (VLDL), low density lipoprotein (LDL) and high density lipoprotein (HDL) ...
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Abstract The present study was investigated artichoke extract in drinking water on performance, carcass characteristics and some blood parameters concentrationssuch as Triglyceride, Cholesterol, very low density lipoprotein (VLDL), low density lipoprotein (LDL) and high density lipoprotein (HDL) in broiler chickens. Experiment wasused by randomized complete block design (RCBD) with 200 broiler chickens consisted of 5 treatments 0, 100, 200, 300 and 500 milligrams artichoke extract per water liter at four replicates per treatment and 10 chickens per replication during 21-35 days of age. Artichoke extract had any significant effect on feed intake, body weight gain, feed conversion ration and carcass characteristics. Artichoke extract had any significant effect on the blood parameters in broiler chickens during 35 day of age. It can be concluded that inclusion extract of artichoke up to 500 milligrams per liter has no beneficial consequences on performance and blood serum fat constituents.
H Akbari; M Azizi; A Poor Chitsaz; S. R. Nooranian
Volume 4, Issue 3 , January 2016, , Pages 71-78
Abstract
Abstract Caracal (Caracal caracal) is a species of Felidae which has a vast distribution in the central area ofIran. In this study, we gathered all records of caracal in Yazd province during nine years (2002-2011). We also analyzed the results of intensive camera-trapping in 3 protected areas inYazd ...
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Abstract Caracal (Caracal caracal) is a species of Felidae which has a vast distribution in the central area ofIran. In this study, we gathered all records of caracal in Yazd province during nine years (2002-2011). We also analyzed the results of intensive camera-trapping in 3 protected areas inYazd province. Based on the results of the study 96 records of caracal were obtained in the study area including, 36 photographs, 54 direct observations and 6 death animals. The results showedSiahkouhNational Park has more relative abundance of caracal than the other areas (including; Naibandan and Dareh Anjir wildlife refuges). Analysis of the results showed there is no significant difference between the activities of caracal on night and day. Three records of death animals related to the road accidents. In this study, we obtained 3 different cases of reproduction of caracal in Kalmand – Bahadoran protected area.
Abdolmajid Mohammadzadeh; Aram Sharifi
Volume 5, Issue 1 , September 2016, , Pages 71-81
Abstract
Biofilm is a complex community of microorganisms residing within a polysaccharide and/or protein matrix. Biofilm can be produced by microorganisms such as bacteria and fungi. Both gram positive and gram negative bacteria have this ability. Resistance of biofilm to antimicrobial agents is becoming a global ...
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Biofilm is a complex community of microorganisms residing within a polysaccharide and/or protein matrix. Biofilm can be produced by microorganisms such as bacteria and fungi. Both gram positive and gram negative bacteria have this ability. Resistance of biofilm to antimicrobial agents is becoming a global issue. Bacterial biofilms are important in various aspects such as chronic human infections, dental plaque, infection of indwelling medical devices like catheters; animal and plant diseases and they are also a major problem in industries and food processing units. It is estimated that more than 80% of all microbial infections are caused by biofilms. The aim of this study was to describe biofilm and the importance of bacterial biofilms. We discoursed about resistance of bacteria in biofilm phase; and finally, the known anti-biofilm mechanisms have been discussed. Also, due to the importance of plant compounds for treatment of bacterial infections and as, there has been increased interest in controlling of bacterial infections by these substances, some recent studies in this field (plant compounds as anti-biofilm agents) have been expressed.
