Cytology and Genetics ,
vol. ,
no. , ,
doi: https://www.doi.org/
A positive correlation is found between the level of record productivity of record-holding cows and duration of their farm use. A positive correlation is found to exist between the value of the record milk-yield and repetition of milk-yields similar to the record. It is stated that the overwhelming majority of record-holding cows are well developed, have solid sound constitution, better adaptability to living conditions, higher viability.
Keywords:
