FIELD: veterinary science. SUBSTANCE: method suggests to reveal healthy bulls which enabled to obtain offspring resistant to tuberculosis. Then such bulls are estimated for performance in first calvers. Then bulls' sperm is stored. Final estimation of servicing bulls is conducted according to first calvers' resistance to leucosis aged 3-4 calvings. EFFECT: higher efficiency. 2 tbl
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR COMPLEX SELECTION OF CATTLE FAMILIES ACCORDING TO THEIR RESISTANCE TO DISEASES | 2000 |
|
RU2191506C2 |
METHOD FOR EVALUATING GENOTYPE OF STUD BULLS ACCORDING TO OFFSPRING'S VIABILITY | 2001 |
|
RU2216170C2 |
METHOD OF SELECTION OF BULL-SIRES BY RESISTANCE TO LEUKOSIS | 1990 |
|
RU2032336C1 |
METHOD FOR ASSESSMENT OF CATTLE RESISTANCE TO LEUKAEMIA | 2011 |
|
RU2452955C1 |
METHOD FOR SELECTION OF BULLS FOR RESISTANCE TO MASTITIS BY INDICES OF BREEDING VALUE ON THE BASIS OF QUANTITY OF SOMATIC CELLS IN MILK | 2019 |
|
RU2718001C1 |
METHOD FOR LINE BREEDING IN PEDIGREE ANIMAL HUSBANDRY | 1992 |
|
RU2048091C1 |
METHOD FOR CATTLE SELECTION | 0 |
|
SU1703006A1 |
HYBRID DAIRY CATTLE AND SYSTEMS FOR MAXIMIZING THE BENEFIT OF USING THE HYBRID | 2015 |
|
RU2721252C2 |
METHOD FOR SELECTING BULLS OF MEAT CATTLE BREEDS WITH ADAPTIVE BREEDING VALUE | 2021 |
|
RU2779936C1 |
METHOD OF BEEF PRODUCTION AT RECONSTRUCTION OF GROWTH STRUCTURE OF STAD AT DAIRY FARM | 2016 |
|
RU2645248C1 |
Authors
Dates
1997-07-10—Published
1995-08-01—Filed