مقالههای B. Ghaednia
توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقالههای نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده میشوند.
۱Effect of hot–water extract of brown seaweed Sargassum glaucescens via immersion route on immune responses of Fenneropenaeus indicus
نویسنده(ها): B. Ghaednia، M. R. Mehrabi، M. Mirbakhsh، V. Yeganeh، P. Hoseinkhezri، G. Garibi and A. Ghaffar Jabbari
اطلاعات انتشار: IRANIAN JOURNAL OF FISHERIES SCIENCES، دهم،شماره۴، Oct ۲۰۱۱، سال ۰
تعداد صفحات: ۱۵
The development of shrimp aquaculture, in spite of its global necessity, is largely at stake as significant ecological and pathological problems are increasing in the vast majority of the shrimp producing countries. Shrimp immunology is a key element in establishing strategies for controlling diseases in shrimp aquaculture. The total haemocyte count (THC), differential haemocyte count (DHC), total plasma protein (TPP), Phagocytic activity (PA), bacterial clearance efficiency (BCE) and bactericidal activity (BE) were examined when the F. indicus shrimps (11.32±1.20 g) were immersed in seawater (39 ppt and 25 ± 1 ○C) containing hot–water extracts of brown alga Sargassum glaucescens at 100, 300 and 500 mg\l. These parameters increased significantly (p 0.05) when the shrimp were immersed in seawater containing hot–water extracts at 100 mg\l after 3h and 300 and 500 mg\l after 2 h. F. indicus shrimps that were immersed in hot–water extracts at 300 and 500 mg\l had increased phagocytic activity and clearance efficiency to Vibrio spp. after 2 hours. But bactericidal activity increased significantly after 1 hour in the same concentrations.
۲Investigation of the possibility use of Zataria multiflora (Avishan–e Shirazi) essence in control of fungal contamination of cultured shrimp, Litopenaeus vannamei
نویسنده(ها): M. Sharif Rohani، A. Dashtiannasab، B. Ghaednia، M. Mirbakhsh، V. Yeganeh، A. Vahabnezhad
اطلاعات انتشار: IRANIAN JOURNAL OF FISHERIES SCIENCES، دوازدهم،شماره۲، Apr ۲۰۱۲، سال ۰
تعداد صفحات: ۱۱
This study was conducted to evaluate the possibility of replacing Z. multiflora instead of antibiotics and chemicals in shrimp aquaculture industry to protect the environment and prevention of microbial resistance. In vitro MIC of Z. multiflora essential oil against Candida albicans and Fusarium solani obtained 0.004% and 0.008% respectively, also MFC of Z. multiflora essential oil against C.albicans and F.solani was 0.004% and 0.04%, respectively. The results showed that 0.0002% dosage of Z. multiflora essential oil against total count of fungi in sea water (salinity 39±1ppt) can decrease growth of fungi after 6 h and 0.0004%, 0.0008% and 0.0016% dosages can decrease the total count of fungi in sea water. But very low dosage of Z. multiflora essential oil in shrimp Litopenaeus vannamei leads to mortality. Lethal dose of Z. multiflora essential oil in shrimp postlarvae, juvenile (2±0.2g) and adults (10–12 g) was 0.00050%, 0.00045% and 0.00035%, respectively. The results indicated that Z. multiflora have a significant anti–fungal effect but is toxic for L. vannamei. We recommend that Z. multiflora essential oil can be used in non–living environment, such as disinfecting tanks and equipments
۳The effect of created hemolymph apoptosis on WSSV Gama–vaccinated shrimp, Litopenaeus vannamei in WSSV disease control
اطلاعات انتشار: IRANIAN JOURNAL OF FISHERIES SCIENCES، پانزدهم،شماره۱، Jan ۲۰۱۶، سال ۰
تعداد صفحات: ۱۰
White spot syndrome virus (WSSV) is the causative agent responsible for huge–shrimp viral epidemics in shrimp farms throughout the world. Our study was aimed to determine the effect of WSSV Gamma–vaccinated Litopenaeus vannamei on the occurrence of apoptosis. One thousand and twenty PL15 were randomly distributed among 2 treatments and two control groups. Gama–Vaccinated shrimp and non–Gamma–vaccinated ones were our treated and untreated groups. Based on our results significant differences (p0.05) were observed in survival percent between vaccinated–exposed group (82.33±2.51) and non–vaccinated exposed group (26.00±10.00). It is concluded that apoptosis can be a helpful process in enhancing the immune response in shrimp especially against WSSV.
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