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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Výskyt a eliminace čmelíka kuřího v chovech kura nosného typu v ČR
 Rádsetoulalová, Iva
In a practical part of my thesis I monitored mortality of poultry red mite (Dermanyssus gallinae), caused by selected essential oils. There were used six essential oils: clove bud, lavender, cinnamon, rosemary, skin of Brazilian oranges, peppermint. The acaricidal activity of six plant essential oils against poultry house-collected red mites was examined using direct contact method by glass vial bioassay, at six different concentrations: 0.5; 0.25; 0.12; 0.06; 0.03; 0.015 microlitre/cm2. Always eleven glass vials per each concentration and oil and controls (without essential oils) were used. Oils were dissolved in metanol or distilled water or Tween 85 with water. Twenty movable poultry red mites all their stages of development were placed on the filter paper impregnated by essential oil at the bottom of the glass vials. The mortality of the poultry red mites in the glass vials was measured after 24 h. All used essential oils caused mortality of poultry red mite. The average mortality in the controls were 2 %. The highest mortality was observed with clove buds essential oil and cinnamon essential oil at concentrations of 0.5 and 0.25 microlitre/cm2.
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Určení pohlaví ptáků analýzou DNA
 Rádsetoulalová, Iva
In my bachelor thesis -- Determining the sex of birds by DNA analysis, I dealt with covering information about ways of determining sex of birds. I focused on molecular methods, especially sexing birds by analyzing DNA by PCR method, which is based on amplification of CHD1 gen. CHD1 gen is located on both sex chromosomes of almost all bird's species. DNA is getting out of blood samples, feathers or intact membranes. I described avian reproductive system, sex chromosomes, the most common methods of determining sex, PCR method and sex determining genes and genes usable for determining sex of birds.
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