Zobrazeno 1 - 3
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pro vyhledávání: '"N L Ignatieva"'
Publikováno v:
Agrarian science. 1:60-64
Relevance. In recent years, there has been a decrease in the total number of cattle of both meat and dairy production. In this regard, the study of the features of breeding of beef cattle is relevant. In the studies, the growth and development indica
Publikováno v:
Agrarian science. 1:18-23
Relevance. Prevention of ketosis in freshly calved cows is one of the urgent problems in the industry. The article presents data on the results of the use of propyleneglycol in the diets of cows during the transit period.Methods. For the study, 2 gro
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 935:012025
Sires play an important role in improvement of productive qualities of bred livestock. Most researchers and breeders estimate their impact to be at least 90%. In order to evaluate the results of using different Holstein breeding bulls, we compared th