FIELD: agriculture.
SUBSTANCE: invention relates to the field of agriculture, namely, to selection, and can be used in breeding in poultry pedigree farms. Evaluation of broiler chickens is carried out according to the developed scale for fast and slow-fledging lines of broiler strains; the day-old chickens are distributed into three groups: 6-18 hours - late; 19-32 hours - average; 33 and above - early. The calculation of the duration of the embryonic development from laying to hatching chickens is carried out: the time is recorded from the start of incubation till evaluation of the chickens on development of fledging (T1), the age of chickens is subtracted from it, which is set according to a feather (T2), using the formula: T=T1-T2.
EFFECT: method of evaluation of broiler chickens enables to select the parental pairs for obtaining chickens that have a higher rate of growth in fetal and postnatal periods, to increase other zootechnical factors of productivity by 5,2-8%.
21 dwg, 3 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF SELECTING AUTOSEXING MEAT CHICKENS BY SEX | 2007 |
|
RU2347362C1 |
| METHOD FOR SEX DISTRIBUTING IN BROILER CHICKENS | 0 |
|
SU1789154A1 |
| METHOD FOR CORRECTING NEGATIVE CONSEQUENCES OF OXIDATIVE STRESS IN BROILER CHICKENS IN INDUSTRIAL PRODUCTION CONDITIONS | 2024 |
|
RU2826272C1 |
| METHOD OF DETERMINING STARVATION TIME OF DUCKS | 0 |
|
SU886866A1 |
| METHOD OF EARLY ASSESSMENT OF LAYING HENS IN BREEDING | 2012 |
|
RU2507739C1 |
| INCREASE OF POULTRY'S IMMUNE SYSTEM IN INDUSTRIAL PRODUCTION | 2006 |
|
RU2327345C1 |
| METHOD OF MEAT-TYPE CHICKEN PARENT FLOCK GATHERING | 2009 |
|
RU2390995C1 |
| METHOD FOR EVALUATING ONE-DAY YOUNG BIRDS | 1996 |
|
RU2121268C1 |
| GROWING METHOD OF BROILERS OF MEAT CROSS | 2008 |
|
RU2363237C1 |
| RETROSPECTIVE METHOD TO DIAGNOSE STRESS STATE OF CHICKENS ON MORPHOLOGICAL PARAMETERS OF FLIGHT FEATHERS | 2014 |
|
RU2567374C1 |
