COWS' HIGHER NERVOUS ACTIVITY TYPES AS A FACTOR OF ESTABLISHMENT OF HIGPRODUCING HERDS
The determination of cows' higher nervous activity types (HNA) is highly topical in farms with free-stall housing technology and with the average milk yield exceeding seven thousand kg per cow/year as it allows not only obtaining the data on the structure of cow herd by HBA-type but also adjusting the parent selection and rearing technology.