نتایج جستجو برای: number of eggs
تعداد نتایج: 21179283 فیلتر نتایج به سال:
The micropyle number in the ova of sturgeon species from the South Caspian Sea was investigated. The study was conducted on female broodfishes of three species of sturgeon (Persian sturgeon Acipenser persicus, Stetates sturgeon A. stellatus and great sturgeon Huso huso) included 44 Persian sturgeon, 13 stellate sturgeon and 8 great sturgeon specimens. Fifty eggs were randomly collected from eac...
Root knot nematode is one of the important plant pathogens that causes damage to many crops, including greenhouse crops. Pepper is an agricultural crop which its cultivation has increased in recent years, especially in greenhouses. Most of the adopted management methods for this nematode have not met the required efficiency. In this study, reaction of some pepper cultivars (Elmina, Tuvana, Chal...
Background: In the current Iranian poultry industry, antibiotics are the most frequently used additive in poultry feeds to increase productivity. The negative effects on human health, resulting from the consumption of chicken whose feeds contain antibiotics, makes finding an appropriate alternative of great importance. As a result of their nature, herbal extracts could be specifically considere...
BACKGROUNDS: Occurrence of resistance against antiparasitic drugs has made it essential for researchers to find new sources for antiparasitic drugs. OBJECTIVES: This study was performed to determine the efficiency of alcoholic extract of worm wood (Artemisia absinthium) on Syphasia parasite. METHODS: Artemisia absinthium extract was examined on 3 groups of mice at 2.5%, 5% and 10% concentration...
the effect of salicylic acid (sa) on induction of resistance against root-knot nematode (meloidogyne javanica) and the effect of m. javanica to induce biochemical defense responses in tomato (solanum lycopersicum l.) roots at six-leaf stage were investigated. meanwhile, the effect of different concentrations of sa on mortality of second stage juveniles of m. javanica was examined. changes in th...
BACKGROUND While live birth is the principal clinical outcome following in vitro fertilization (IVF) treatment, the number of eggs retrieved following ovarian stimulation is often used as a surrogate outcome in clinical practice and research. The aim of this study was to explore the association between egg number and live birth following IVF treatment and identify the number of eggs that would ...
the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...
Background and Objectives: The visceral larva migrans (VLM) is a syndrom observed in human infected with helminth eggs such as the Toxocara spp., that usually infects dogs and cats. Considering the risk factors involved in the occurrence of VLM, particularly important role of these animal populations, this study was conducted to investigate the contamination rate of Toxocara SPP. eggs in the p...
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