FIELD: agriculture.
SUBSTANCE: method lies in the following: selected are animals in whose blood at age of 20 days erythrocytic antigens B2, G2, O', P', R2, G", I1, I2, E2' are detected.
EFFECT: method allows to reduce duration of intercalving period in cows.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETECTING FARMING LONGEVITY IN CATTLE | 2006 |
|
RU2316957C1 |
| SELECTION METHOD OF CATTLE BY BUTTER-FAT | 2007 |
|
RU2361398C1 |
| METHOD FOR SELECTION OF NEAT CATTLE BY MILK PRODUCTIVITY | 2008 |
|
RU2391815C2 |
| METHOD OF CATTLE SELECTION BY MEAT PRODUCTIVITY | 2008 |
|
RU2366170C1 |
| METHOD OF OBTAINING HETEROSIS IN BREEDING CATTLE STOCK | 2010 |
|
RU2467569C2 |
| METHOD FOR IMPROVING PRODUCTIVE AND REPRODUCTIVE QUALITIES OF YOUNG KALMYK CATTLE USING ANTIGENIC SIMILARITY INDEX | 2022 |
|
RU2822879C2 |
| METHOD TO BREED COWS WITH EXTENDED PRODUCTIVE LONGEVITY TERM | 2009 |
|
RU2409945C1 |
| METHOD OF SELECTION OF FAR EAST WHITE-AND-BLACK CATTLE ON MILK PRODUCTIVITY | 2014 |
|
RU2574134C2 |
| METHOD FOR OBTAINING DAIRY CATTLE HERD WITH DESIRED CHARACTERISTICS | 2022 |
|
RU2802500C1 |
| METHOD OF SELECTION OF CATTLE IN KALMYK BREED ACCORDING TO MEAT PRODUCTIVITY | 2011 |
|
RU2498569C2 |
