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Methodical approaches to the use of laying hen forced molting

The analysis shows various methods of hen forced molting used in different farms. The methods used nowadays allow increasing the lifetime of laying hens, reducing the duration of molting and identifying stress resistant hens.

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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