نتایج جستجو برای: growth and survival

تعداد نتایج: 16967108  

اعتمادی, نعمت الله, زمانی, نجمه, مجیدی, محمد مهدی , محمدی نژاد, رضوان,

The major problems in transplanting the landscape trees are high level of mortality and low establishment rate of transplanted trees, especially in the first year. In order to achieve the best condition for successful transplanting of pine and plane trees in Isfahan landscape, the present study was carried out based on a completely randomized block design with four replicates and three treatmen...

جاوید, آمنه, رضایی زارچی, سعید, برزگری فیروزآبادی, فاطمه,

    Background & Aim: In vitro maturation (IVM) of oocyte is a promising technique to reduce the costs and avert the side effects of gonadotropin stimulation for in vitro fertilization (IVF). To better characterize the nature and impact of different hormones and important parameters on the growth and in vitro maintenance of oocyte, the present study was done. The purpose of this study is in vit...

2013
Michael D. Arendt Jeffrey A. Schwenter Blair E. Witherington Anne B. Meylan Vincent S. Saba

A recent analysis suggested that historical climate forcing on the oceanic habitat of neonate sea turtles explained two-thirds of interannual variability in contemporary loggerhead (Caretta caretta) sea turtle nest counts in Florida, where nearly 90% of all nesting by this species in the Northwest Atlantic Ocean occurs. Here, we show that associations between annual nest counts and climate cond...

Journal: :iranian journal of science and technology (sciences) 2012
f. mashayekhi

in this review the role of cerebrospinal fluid (csf) in mammalian cerebral cortex development has been highlighted. many studies have focused on the potential role of the csf in the developmental process. in particular, the cerebral cortex develops from the germinal epithelium adjacent to the csf. csf contains proteins, growth factors and other neurotrophic factors which are important for neura...

Bo Zhang Jianrong Huang Runlin Xu, Wenhui Lin Yajun Wang

 In order to investigate the effects of artificial substrates (vertical surface of polypropylene fabrics) on cultured shrimp, we reared 28-day old Litopenaeus vannamei post-larvae (PL28) intensively for 90 days at a density of 510 shrimp/m2 in each of 8 tanks. Two tanks containing no artificial substrate were a control group, and 1, 3 and 5 artificial substrates were present in other 6 tanks. T...

Journal: :iranian journal of ichthyology 0
mohammad nabi adloo department of fisheries, islamic azad university, bandarabbas, iran. siyavash soltanian aquatic animal health & diseases department, school of veterinary medicine, shiraz university mahmoud hafeziyeh iranian fisheries research organization. nastaran ghadimi department of fisheries, islamic azad university, tehran, iran

the present experiment was undertaken to study the effect of different dosages of β-glucan on the growth, survival and physiological responses in juvenile striped catfish ( pangasianodon hypophthalmus ). over nine weeks of feeding fish with a diet containing 0, 0.5, 1 and 2% β-glucan (as control, g1, g2 and g3 group, respectively), some blood parameters such as serum lysozyme activity, total pr...

ژورنال: اقیانوس شناسی 2020

Dietary cholesterol has been shown to be essential for several crustacean species. However, cholesterol requirement of narrow-clawed crayfish has not been reported. Therefore, a 12-week feeding trial was conducted to determine deitary cholesterol requirement of narrow-clawed crayfish. Juvenile crayfish with an average body weight of 13.8±1 g mean weight were intensively stocked in an indoor rec...

A.H.M Mohsinul Reza , M Shafaet Hossen , S.F Rakhi, Z Hossain ,

The present study explored the embryonic and larval development of an endangered fish species Nandus nandus and resolved larval growth performances with the dietary supplementation of different types of lipids. Fertilized eggs were collected from fiber glass tanks immediately after spontaneous spawning of N. nandus, which were fed with a 1% phospholipid (squid meal) supplemented diet for 3 mont...

Journal: :iranian journal of veterinary medicine 2011
حجت جعفریان mahdi soltani hashem noferesti pooneh ebrahimi

bacillus spp. are gram-positive spore-forming bacteria used commercially as probiotics in the larviculture of fish. bacillus spp. can act positively on cultured organisms by enhancing their survival and growth, stimulating their digestive and immune systems, and improving water quality. in this present study, grass carp larvae were fed on artemia urmiana, artemia fransiscana and artemia parthen...

Aileen Tan , S.H., Nithiyaa, N., Nooraini , I., Nuramira Syahira , S.,

Culturing of bivalves in the hatchery is the most popular technique for aquaculture that promotes a healthy bivalvechr('39')s production, where the animal would be less exposed to pollution from human activities. The increase of industrial and agricultural waste along the coastal region has altered the environment, hence affecting the growth and survival of aquatic organisms, particularly clams...

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