Evaluation and Selection of Poultry using the Probit Method

Abstract

The purpose of the research is a comparative evaluation of the fertility ability of breeding cock in absolute (arithmetic mean) and relative (probit) rates, done on egg-laying hens of «Kuchinsky» PBP. The fertilization of eggs, hatchability of eggs and hatching were taken into account during the evaluation. The evaluation of cocks in terms of incubation qualities showed that eggs fertilization was 81.4%, hatchability of eggs - 76.6%, poultry rearing - 62.4%. On average, one breeding cock fertilized 194.8 eggs, from which 149.3 poults were hatched. Biometric analysis of incubative qualities defined that breeding cocks impact was positive about all three features and incubative qualities were inter-related, multiple correlation was on the level 0,939.