Use of starter combined feeds in the ration of black-andwhite replacement heifers

The article presents results of the research dedicated to the influence of starter combined feeds on the growth of black-and-white replacement heifers. It has been found that feeding the animals at the age of 2-5 months with the starter combined feeds in the amount of 1.5-1.7 kg per head daily contributes to greater edibility of feeds and increase in average daily gains while optimizing the animal health condition.

Chlorella suspension use in feeding yield heifers of blackand white breed in milk period growth

The article gives the results of studying on chlorella suspension influence on the yield heifers of black-and white breed. It has been established that feeding crop additions to animals in milk period growth of 0,5kg per head during twenty-four hours brings an increase in average daily gain, feeding activity of heifers along with health conditions optimization.

Growth and development of spruce undergrowth in uneven-aged birch forests in taiga middle subzone

The influence of uneven-aged birch (blueberry kind of environment vegetation) on spruce undergrowth in Syamzhenskiy district of the Vologda region has been studied. It has been established that the growth and development of spruce plantations depend on the age of the main tree stand. Coniferous undergrowth condition deteriorates with the age of birch.

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