Национальный цифровой ресурс Руконт - межотраслевая электронная библиотека (ЭБС) на базе технологии Контекстум (всего произведений: 634558)
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1

Distribution and habitat preference of Bombus (Kallobombus) soroeensis (Fabricius, 1777) on the territory of Arkhangelsk Region

Автор: Potapov

In this paper, we summarise material pertaining to the distribution and habitat preference of Bombus (Kallobombus) soroeensis (Fabricius, 1777) on the territory of Arkhangelsk Region. B. soroeensis is widely represented on the territory as nominative subspecies B. soroeensis ssp. soroeensis, which is common mainly in Fennoscandia, the British Isles and Eastern Europe. The northern border of the species range in the Arkhangelsk Region is the lower reaches of the Mezen River, located in the transition zone between the northern taiga and the forest-tundra. This locality is probably one of the most northern records of this species in the northern part of the Russian Plain. In Eastern Fennoscandia, B. soroeensis is distributed far to the north, i.e., in the northern parts of Finland and Norway. In relation to the habitat preference, B. soroeensis in the study region belongs to the category of meadow species. This species is typical of different types of meadows and ruderal habitats. B. soroeensis is not typical with regards to the native taiga habitats, in most cases. This is similar to the situation on the territory of Finland, where this species is associated with open meadow habitats. Individuals of B. soroeensis have been recorded on a wide range of entomophilous plants, and the main examples are Rhinanthus minor, Epilobium angustifolium, Cirsium arvense, Scorzoneroides autumnalis, Lotus corniculatus.

2

DEVELOPMENT OF PREPARATIONS OF ANTIOXIDANT PROTECTION OF BIRDS ON THE BASIS OF MARSH CINQUEFOIL (COMARUM PALUSTRE L.)

The article shows the need to develop preparations antioxidant actions and identify the preparative form, optimal for use in a stressful poultry industry. Because the impact of negative factors emergency force feeding a bird is greatly reduced, the body experiences a deficiency of biologically active substances and their additional introduction food is ineffection, need to find other ways of introducing biological additives. As a means of antioxidant action is proposed the use of marsh cinquefoil (Comarum palustre L.), which consists of flavonoids - hesperidin, luteolin-7-glycoside, robinin, vicenin, dihydroquercetin, hyperoside; oksikorichnye acids - cicoria, coffee; coumarins-umbelliferon contributing to its antioxidant properties.The article presents the results of a study of antioxidant activity of different preparative forms on the basis of marsh cinquefoil (Comarum palustre L.), prepared according to the Pharmacopoeia of the Russian Federation XII(decoction, extract and tincture) from whole plant: roots and aboveground parts. A new method for determination of antioxidant activity in aqueous extract of marsh cinquefoil (Comarum palustre L.)through which confirms its antioxidant properties.From all the studied aqueous extracts of marsh cinquefoil (Comarum palustre L.) most appropriate to the poultry industry is the use of infusion, as the most convenient in the preparation of forms and the possessingrather high antioxidant activity. It is proposed in terms of industrial content desoldering bird water infusion marsh cinquefoil (Comarum palustre L.) in a dose of 5 ml per kg of live weight, the resulting rate of 1 g of marsh cinquefoil (Comarum palustre L.) to 10 ml of water. doi: 10.15217/279703