Studies having been carried out on animals of Ayrshire breed show that indexes of food, motion and total activity selection can be successfully used as selection signs. Selection of cows on ethological individuality is accompanied by an increase of their milk production. Animals with increased food activity, compared to cows with a low one, have got the rise of milk yield per lactation by 686 kg. Ultra-active cows should be mentioned particularly, productivity of them opposite to infrapassive ones increases by 49%.

The silvicultural taxation characteristic of English oak has been carried out under the conditions of the Vologda region. The assessment of the reproductive capacity of the species by examining the biometric indicators of acorns and by germination tests has been made. The assessment of natural regeneration has been carried out.

The study of growth peculiarities and accumulation dynamics of photosynthetic pigments in spruce undergrowth in birch blueberry forests of different age is made. Methodology is described as well as brief characteristics of experimental objects are given.

The results of the comparative diagnostic efficiency of traditional helminthological and serological methods for the diagnostics of toxocariasis dogs T.canis are shown. Epizootological and seroepizootological data on toxocariasis spread in the population of dogs of the city of Vologda are obtained.