The productive longevity of cows of different populations of Nizhny Novgorod region depending on their linear accessory
E-mail: nnovniish@rambler.ru
The analysis of influence of a linear accessory and bulls-sires on productive longevity of cows of black-motley, brown swiss and red gorbatov breeds is lead. Authentic distinctions between lines on studied attributes areestablished.
Keywords: cows, breeds, productive longevity, factory line, sires
