ali halajian

Chigger mite genus Hyracarus Lawrence, 1949, endemic to Tropical Africa, was revised based on the examination of type series, new materials, unpublished archive sources, and the literature. Five new species were described: Hyracarus bethuliensis sp. nov., H. ethiopicus sp. nov., H. sabiensis sp. nov., H. aryanicki sp. nov., and H. limpopoensis sp. nov. Three new subjective synonyms were established: Hyracarus [= Mastalacarus Goff & Lukoschus, 1983, syn. nov.; = Tateracarus Goff, 1983, syn. nov.] and Hyracarus thallomyia (Radford, 1947) [= Acomatacarus lawrencei Radford, 1948, syn. nov.]. Six new combinations were proposed: Hyracarus foliosetosus (Stekolnikov & Matthee, 2022) comb. nov., H. kimberleyensis (Stekolnikov & Matthee, 2022) comb. nov., H. quadrisetosus (Goff, 1983) comb. nov. (originally in the genus Tateracarus), H. namibiensis (Goff & Lukoschus, 1983) comb. nov. (originally in the genus Mastalacarus), H. thallomyia (Radford, 1947) comb. nov., and H. mutabilis (Vercammen-Grandjean & Brennan, 1957) comb. nov. (originally in the genus Acomatacarus Ewing, 1942). Currently, the genus includes 16 valid species known from South Africa (10 species), Namibia (2), Angola (1), Democratic Republic of the Congo (1), Uganda (1), and Ethiopia (1). Its species parasitize murid rodents (7 records), hyraxes (3), elephant shrews (2), dormice (1), shrews (1), bats (1), and skinks (1).

The present study was designed and implemented to evaluate the effects of relative replacement of different levels of dehulled soybean meal (DHSM) instead of fish meal on growth performance of adult Persian sturgeon (Acipenser persicus). In this study, a total of eighty 4-year-old Persian sturgeons (Acipenser persicus), with an average weight of 3850 g were fed with 8 isonitrogenetic and isolipidic diets for 52 weeks. Experimental diets include different percentages of dehulled soybean meal include 0, 10, 15, 20% without amino acid, 15 and 20% replacement with lysine and methionine, and 15 and 20% replacement with lysine and methionine and L-carnitine supplement (DHSM0, DHSM10, DHSM15, DHSM20, DHSM20+AA, DHSM15+AA, DHSM20+AA+L.car. DHSM15+ AA+L.car.). After 52 weeks, no significant difference was observed between weight gain (WG), specific growth rate (SGR), LX and PV in different treatments. The protein efficiency ratio and feed efficiency (FE) in DHSM0 was significantly higher than that of DHSM20+AA and DHSM15+AA. Hepatosotic index of fish in DHSM0, DHSM10, DHSM15, DHSM20 + AA+L.car. DHSM30 + AA+L.car. was significantly higher than that in DHSM30 + AA. Gonadosomatic index exhibited alterations under the influence of the diet.  Effect of diets containing dehulled soybean meal with L-carnitine supplement on the reproductive system of female fish was significant and positive. The somatic growth in female Persian sturgeon was higher than that of males. However, their gonadic growth and stages of sexual maturity were significantly lower than that in males. The highest sexual maturity index of male fish was observed in DHSM15 + AA+L.car diet, so that at the end of the rearing period, 75% of fish were in stage IV of sexual maturity and 25% in stage III-IV. Addition of L-carnitine and essential amino acid supplement such as lysine and methionine to the diet containing soybean meal displayed a positive effect on the growth and reproductive indicators in the functional diet of Persian sturgeon and probably can improve significantly the production of Persian sturgeon fry.

Oxadiazon is a selective herbicide used to control weeds in agriculture. The purpose of this study was to investigate the effects of oxadiazine herbicides on fish phytophagous fish indexes. After adaptation of 270 species of phytophagous fish with an average length of 1 to 13 cm and an average weight of 50 to 100 grams to reservoirs each having a capacity of 12 liters They were placed. The concentrations of each reservoir were 5 and 10 mg / L, respectively, of oxadiazone. Dandruff blood samples were taken from 3 treatments (each treatment with 3 replicates) completely randomly every 12 hours to 72 hours. The results showed that hematocrit and hemoglobin and red blood cells were significantly different in other treatments (P <0.05).There was no significant difference between mean blood hemoglobin concentration and mean blood hemoglobin between control and treatments (P>0.05). There was a significant difference in white blood cell count, eosinophil count, lymphocyte, monocyte, neutrophil in control treatment with other treatments (p<0.05). One of the reasons for the changes in some of  the blood indices is due to a disruption of the hematopoietic process of the fish.

A mixture of vegetable and animal proteins (corn gluten, wheat gluten, processed soy flour, poultry by product, meat and bone meal and blood meal) that are chemically similar (protein, fat, carbohydrate and dry matter) and similar to amino acid profiles compred fish meal were replaced fish meal in diets with identical levels of protein (44%), energy (18 MJ /kg) at levels of  20, 40, 60 and 80% (MPP20, MPP40, MPP60 and MPP80). Juvenile Huso huso with average weight of 167± 6.5 g were fed diets to saturation and their growth indices, carcass composition, hepatosomic and visceral indexes were studied. The final weight, final length, condition factor, weight gain, body weight precent, specific growth rate, daily growth, feed conversion ratio and protein efficiency ratio were not affectrd with diets (p>0.05). Carcass protein of fish fed MPP60 and MPP80 were significantly decreased compared to fish fed diet based on fish meal, while fish carcass fat increased significantly in these fish (p<0.05). There was no significant difference in hepatosomatic and visceral index in fish fed diets based on fish meal (p>0.05). The results of this experiment showed that it is possible to replace 80% of a mixture of animal and vegetable proteins with fish meal without adversely affecting growth indices, hepatosomal and visceral index  of  Huso huso in growth rate period.

The purpose of the present study was to evaluate the performance of Isfahan Municipality Cultural and Social Sports Organization based on the CIpp model with the approach of citizenship sports.The research method was descriptive in nature and applied in terms of purpose. In the qualitative stage of the research, first the preliminary questions of the interview were created by studying the sources related to the research, collecting information and reviewing the research.The interviewees at this stage were experts in the field of civic sports who were purposefully selected.Then, Delphi method was used in four stages to correct and improve the interview questions. In the quantitative stage of the research, the questions of the questionnaire were extracted after evaluating the themes, in the form of 94 questions, and were implemented among 113 citizen sports experts. The results showed that all four dimensions of context, input, output and process in the evaluation of the performance of this organization are higher than the average level, but need to be improved and increased. Also, evaluation and feedback on the developed programs is necessary both during and after the implementation of the program, because performance evaluation was relatively effective in achieving the goals of this program.

In this study 180 beluga(Huso huso) weighted 120 ± 10gr with stocking density of 12 fish/tank ,after adaptation with synthetic diet , fed different levels of AFB1(0,25,50,75 & 100ppb/kg of diets) under controlled conditions(T=18±2ºC,DO=7.3ppm). The fish were fed 3% of body weight four times a day for 120 days.Record of physical and chemichal water caracters include : DO , temprature , pH , did weekly . Residue of AFB1 in muscls in different exprements determined by HPLC method . The amount of AFB1 in mscle was between 0.36 -2.90 ppb .Based on international standards these amount is not harmfull for human consumption.