List of Articles محمد ولایت زاده

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  1 - The study of drip and drip protein in Pomadasys kaakan, Caranx ignobilis, Nemipterus japonicas and Ctenopharyngodon idella held in of 2 and 5 percent salt
  A. Askary Sary M. Velayatzadeh M. Moaref S. Majdinasab M. Samadi Sh. Nabizadeh
  Protein components of living body are affected by environmental factors such as temperature, salinity and pH. This study was carried out to measure and compare drip and drip protein in four fishes Pomadasys kaakan, Caranx ignobilis, Nemipterus japonicas and Ctenopharyng More

  Protein components of living body are affected by environmental factors such as temperature, salinity and pH. This study was carried out to measure and compare drip and drip protein in four fishes Pomadasys kaakan, Caranx ignobilis, Nemipterus japonicas and Ctenopharyngodon idella holding condition without and with 2 and 5 percent salt in house refrigerators with -19, 2010. 108 samples of fishes were investigated. Drip was measured using Spectrometer T80 uv/lis PG Instruments and percent of drip protein was done by kjeldahl method. In this study data were analyzed with SPSS17 software in terms of oneaway (ANOVA). According to the results, highest of drip 50.43±14.56 g and drip protein 3.40±1.17 % was in Pomadasys kaakan in5 percent salt and lowest of drip 1.32±0.36 g was in Pomadasys kaakan without salt, respectively. Also, the lowest of drip protein was 2.75±0.46 % in Pomadasys kaakan in 2 percent salt. Salting caused an increase in drip loss (P<0.05) but had no significant effect on drip protein content (P≥0.05). Manuscript profile
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  2 - Fecundity of Carassobarbus luteus in Karun River from Aghili Plains in Shushtar
  M. Biria N. Javadzadeh Pourshalkoohi M. Velayatzadeh
  Carassobarbus luteus fish, one of the Cyprinidae species and native to southwestern Iran, have been identified in the domestic water in the rivers and wetlands of Khuzestan Province. This study was performed Fecundity of Carassobarbus luteus in Karun River. Monthly catc More

  Carassobarbus luteus fish, one of the Cyprinidae species and native to southwestern Iran, have been identified in the domestic water in the rivers and wetlands of Khuzestan Province. This study was performed Fecundity of Carassobarbus luteus in Karun River. Monthly catches from February 2012 to April 2013 at three stations in the province took Aghili Plains. 385 samples of fish were collected from the study area to determine fecundity of ovarian tissue were selected samples in sexual stages 3, 4, 5. Mean of absolute fecundity of Carassobarbus luteus was 5754.59±7 and range from 740 to 43301 eggs. The highest of absolute fecundity in Length apperceive 205 to 210 mm equal 26800±1660.45. Also, the lowest of absolute fecundity in Length was 185 mm equal 1018±52.68. Also mean of relative fecundity in fishes 53.30±1.03 and minimum and maximum from 9 to 248 eggs. The highest of relative fecundity in Length apperceive 200 to 205 mm equal 222.8±10.38. The lowest of relative fecundity in Length was 185 mm equal 9.16±0.25. Manuscript profile
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  3 - Determination of Mercury, Lead, Cadmium and Arsenic in Muscle and Liver of Liza klunzingeri from Hendijan Seaport
  M. Velayatzadeh E. Shahri
   This study determined the concentrations of mercury, lead, cadmium and arsenic in the muscle and liver of Liza klunzingeri from Khuzestan province. In this study, 18 samples of L. klunzingeri were collected from Hendijan seaport in winter. The concentrations of he More

   This study determined the concentrations of mercury, lead, cadmium and arsenic in the muscle and liver of Liza klunzingeri from Khuzestan province. In this study, 18 samples of L. klunzingeri were collected from Hendijan seaport in winter. The concentrations of heavy metals were obtained by atomic absorption spectrometry (Perkin Elmer 4100). The average length and weight of L. klunzingeri were 18.77±0.95 cm and 78.27±3.68 g, respectively. Concentration of Hg, Cd, Pb and As in muscle of L. klunzingeri were0.033±0.009, 0.171±0.017, 0.265±0.009, 0.092±0.008 mg kg-1 dry weight. Also, the amounts of these toxic metals in L. klunzingeri were 0.052±0.009, 0.224±0.011, 0.323±0.017, 0.160±0.008 mg kg-1 dry weight, respectively. The mercury, cadmium, lead and arsenic concentrations in liver of L. klunzingeri were higher than their levels in muscle. In this study, there was no significant positive  correlationbetweenconcentration of Hg, Cd, Pb and As with length and weight in muscle of Liza klunzingeri (P<0.05).Accumulation ofHg, Pb and As in muscle of Liza klunzingeri was lower than the WHO, FDA and NHMRC standards, but concentration of Cd was higher than the NHMRC standards. Manuscript profile
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  4 - Comparison of chemical composition in muscle tissue of Aspius vorax and Carasobarbus luteus fishes in Karkheh River in Khuzestan Province
  A. Jalizi A. Askary Sary M. Chele Mal Dezfulnejad M. Velayatzadeh
  The aim of this study was to assess protein, lipid, carbohydrate, fiber, ash, and moisture in two species of fishes, Aspius vorax and Carasobarbus luteus, in 2011. Fifteen samples of Carasobarbus luteus and 12 samples of Aspius vorax were collected from the Karkheh Rive More

  The aim of this study was to assess protein, lipid, carbohydrate, fiber, ash, and moisture in two species of fishes, Aspius vorax and Carasobarbus luteus, in 2011. Fifteen samples of Carasobarbus luteus and 12 samples of Aspius vorax were collected from the Karkheh River. Mean levels of protein, lipid, ash, moisture in Carasobarbus luteus were 17.19±0.36, 3.23±0.15, 1.28±0.07 and %74.03±0.32, respectively. Similarly, the same chemical contents in Aspius vorax were 18.10±0.36, 2.60±0.20, 1.18±0.09 and %72.10±0.40, respectively. Level of moisture in muscle of two species of Aspius vorax and Carasobarbus luteus were significancantly different (P<0.05), but no significant difference was noticed for protein, ash and lipid (P>0.05). However, Protein in muscle tissue of Aspius vorax was more than Carasobarbus luteus, but lipid, moisture and ash in muscle tissue of Carasobarbus luteus was more than Aspius vorax. Therefore, the results showed that, in terms of animal protein, Aspius vorax is more appropriate compared to Carasobarbus luteus. Manuscript profile
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  5 - The study and comparison of heavy metals, Fe, Zn and Cu in muscle some of endemic fishes from Horolazim wetland, Khuzestan province
  M. Velayatzadeh
  This study was conducted to determine and comparetrace elements, Fe, Zn and Cu in muscle of 8 species of endemic fish, Barbus grypus, Barbus sharpeyi, Barbus xanthopterus, Barbus  pectoralis, Carasobarbus luteus, Liza abu, Barbus esocinus and Aspius vorax, in 2012. More

  This study was conducted to determine and comparetrace elements, Fe, Zn and Cu in muscle of 8 species of endemic fish, Barbus grypus, Barbus sharpeyi, Barbus xanthopterus, Barbus  pectoralis, Carasobarbus luteus, Liza abu, Barbus esocinus and Aspius vorax, in 2012.Seventy two samples of fishes were collected from Horolazim wetland in Khuzestan province.Concentration of  heavy  metals, following wet digestion,were measured by Perkin Elmer 4100 atomic absorption spectrometer. Data were analyzed by ANOVA using SPSS17 software at significant level of 5% (P=0.05). Concentration of Fe in muscle of fishes were not significantlydifferent (P>0.05). The zinc content in muscle of Barbus grypuscompared to other fishes were significantly different (P<0.05). Copper levels in muscle of fishes studied were significantly different (P<0.05). The mean concentration of  Fe, Zn and Cu in muscle of fishes were 11.39±0.26, 12.94±0.38 and 0.62±0.004 mg kg-1, respectively. Also, the highest concentration of Cu was calculated in muscle of Barbus xanthopterus (mg Kg-1). The average concentration of Zn and Cu in muscle of fishes were lower than WHO permissible levels. Manuscript profile
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  6 - Idenification and abundance of bivalvia in coasts of Boushehr Province (Deylam,Bushehr, Dayer and Kangan) in spring and summer
  M. Velayatzadeh H. Mahab M. Hoseini
  This study was done in order to idenification and survey of bivalvia diversity in coasts fromBushehr province (Persian Gulf), 2009.The sampling were collected four stationsfromDeylam, Bushehr, Dayer and Kangan (of mangrove’s coast) with three replicate in spring a More

  This study was done in order to idenification and survey of bivalvia diversity in coasts fromBushehr province (Persian Gulf), 2009.The sampling were collected four stationsfromDeylam, Bushehr, Dayer and Kangan (of mangrove’s coast) with three replicate in spring and summer seasons.Sampling was done by quadrate 625 cm2 and than samples were identified. Samples according to distribution at different depths were compared. For assessed diversity and dominance species of the bivalvia was used of two index like Shanon and Sympson.In fact were identified seven speices and three genus of bivalvia. The number of bivalve idenification in spring 2973±64.72and in summer 1584±51.31 samples in cm2 fromthe study area. The highest of bivalvia abundance were 2008±42.28, 1792±35, 521±11.25 and 236±7.12 samples in cm2 from Dayer, Deylam, Kangan and Bushehr (P<0.05). The number of identified bivalves were significantly different between the four stations (P<0.05). The highest of Shanon index was realized spring in Kangan with H=1.917 and the lowest their summer in Bushehr with H=0.517. The highest of Sympson index was summer in Bushehrwith λ=0.665 and the lowest their summer in Kangan with λ=0.201. InDeylam station was order to identification 3 species that the highest diversity Tellinawallaceae1341±38.95 samples in cm2. In Bushehrstation was order to identification 2 species that abundance in summer 80±3.96 samples in cm2 than more lower spring with 156±8.89 samples in cm2. In this study abundance of bivalvia lower with increasing of temperature in summer. In bivalvia have abundance in spring than more summer.In four stations Idenificated of Tellinawallaceae. Manuscript profile