CORRELATIONS BETWEEN TRAITS CHARACTERIZING WOOL PRODUCTIVITY FOR FINE WOOL SHEEP

Margarit Iliev

Abstract: In order to make a comparative analysis of the correlations between the attributes characterizing wool productivity in sheep bred by Karnobat fine-wool breed study was conducted with two groups of ewes of 2.5 years from the herd of the Institute of аgriculture in Karnobat born in 1998 and 2008 year. Established correlations between most traits (live weight, wool productivity, clean wool and staple length) are within lower and therefore can not rely on correlating effect and must be fought on every selection feature separately. The correlation between wool productivity and clean wool of sheep born in 1998 and in 2008 year was a high positive, but not high enough for selection only in quantity greasy wool. The coefficient of heritability for traits is considered low, indicating that the genetic diversity of the herd is very low and its internal resources are unable to provide the necessary future genetic progress.

Keywords: clean wool; correlation; heritability; Karnobat fine-wool; live weight; staple length; wool productivity

Date published: 2023-01-30