Effect of varying of length of dry period on earlier insemination of cows after calving

Agalakova T.V.

E-mail: agalakovatv@mail.ru

The causes of influence of duration of dry period on productivity and performance of animal reproductive property are studied. The measures facilitating timely launch and insemination of cows with use of new biologically active substances: gistogene, biostim and colicin E2 are proposed.