Analysis of the population structure of a cattle conservation nucleus Curraleiro Pé Duro

ABSTRACT The objective of this research was to study the population structure Cattle Conservation Nucleos Curraleiro Pé Duro Instituto Nacional do Semiárido (NCP_INSA) based on pedigree data. Genealogical information from 338 animals registered in period 1991 2019 used. number founding (Nf), effective founders (fe), ancestors (fa), inbreeding coefficient (F), and average relatedness (AR), addition Fis, Fit Fst were estimated. It possible identify up third generation, with an increase over generations. Of total evaluated, 90.53% had identification father mother. size smaller than those proposed by FAO, suggesting need redefine herd management genetic plan strategies, promoting gene flow breed expansion.