نتایج جستجو برای: آرتمیـای ارومیه artemia urmiana آرتمیــای دوجنــسی ارومیــه parthenogenetic artemia آرتمیای چین artemia sinica
تعداد نتایج: 18095 فیلتر نتایج به سال:
Increasing marine microplastic pollution has detrimentally impacted organismal physiology and ecosystem functioning. While previous studies document negative effects of microplastics on coral reef animals, the potential responses organisms such as large benthic foraminifera (LBF) are largely unknown. Here, we impact heterotrophic feeding behavior LBF. Specimens Amphistegina gibbosa were incubat...
in this study the optimal amount of enriching artemia franciscana with a synbiotic combination of pediococcus acidilactici and fructooligosaccharide (fos( was investigated. the experiment was conducted in a completely randomized design in ten treatments: multi-level probiotics p. acidilactici (1×109, 1×108 and 1× 107 cfu per l) and multi-level enriched prebiotic fos (1, 2 and 5) g per l of solu...
Effect of feeding on linseed oil (LO)-enriched Artemia was investigated on growth, survival and stress resistance of tiger barb (Puntius tetrazona) larvae. Larvae were fed by LO-enriched (2.5, 5 and 7.5 %) as well as non-enriched Artemia nauplii for 14 d, followed by 14 d feeding on non-enriched Artemia. Fish fed on enriched nauplii showed significant increase in growth performance at both 14th...
آرتمیا (artemia) یا میگوی آب شور سخت پوست کوچکی است که به صورت طبیعی در دریاچهها و تالابهای شور یافت میشوند. این جنس دارای گونهها و جمعیتهای متنوعی است که از نظر ویژگیهای فنوتیپی و ژنتیکی تفاوتهایی را از هم نشان میدهند. ویژگیهای برخی از جمعیتهای جدید تاکنون مطالعه نشده است. با توجه به اینکه ویژگیهای جمعیتهای آرتمیای ترکیه تاکنون مورد بررسی قرار نگرفته است، در این تحقیق سعی شد مقادیر...
This study was carried out in a completely randomized design 3×3×4 factorial arrangement in three periods of rearing in spring 1997. Density of 300 larvae was assigned for each oval tank with 0.1m2 surface area, 30cm deep, a volume of 20lit and 0.25 lit/min of water flow per minute at Shahid Rajaie fish breeding and culture center in Sari, north of Iran. The fries were divided into ...
The use of probiotics is receiving considerable attention as an alternative approach to control microbiota in aquaculture farms, especially in hatching facilities. However, application with consistent results is hampered by insufficient information on their modes of action. To investigate whether dead bacteria (allowing investigation of their nutritional effect) or live bacteria (allowing evalu...
Artemia franciscana embryos enter diapause as encysted gastrulae, a physiological state of metabolic dormancy and enhanced stress resistance. The objective of this study was to use RNAi to investigate the function of p26, an abundant, diapause-specific small heat shock protein, in the development and behavior of encysted Artemia embryos (cysts). RNAi methodology was developed where injection of...
INTRODUCTION In a previous paper (Croghan, 19586) the very great osmo-regulating ability of Artemia has been described. It is clear that in concentrated media the animal must have very well-developed active mechanisms both for excreting NaCl and for taking up water to compensate for the passive movements of these substances into and out of the animal. The staining of localized parts of Crustace...
فناوری نانو و مخاطرات محیط زیستی آن بویژه برای آبزیان به شکل روز افزونی در حال گسترش است. در همین راستا پژوهش حاضر با هدف بررسی تأثیر نانوذره نقره بر میزان رشد و بازماندگی artemia urmiana اجرا شد. این پژوهش در قالب 5 تیمار شامل، گروه شاهد، 001/0، 01/0، 1/0و 1 میلیگرم بر لیتر نانوذره نقره در 4 تکرار انجام شد. بدین منظور تعداد 500 ناپلی تازه از تخم خارج شده پس از شمارش و انتقال به ظروف پرورش یک ...
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