I. Nechifor

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Arhivă » Vol. 64 (20) » I. Nechifor


RESEARCH ON TRANSMISSION OF COLOR AT KARAKULUL OF BOTOSANI

I. Nechifor, C. Pascal, M.Al. Florea, I. Padeanu

Abstract
    Research has been conducted on livestock of Karakul of Botosani breed, used in homogeneous cross for several reproduction seasons. The aim was to assess how colour transmission resulting from the crossing of parent males and females within the variety of silver grey colour. In order to achieve the objectives of the investigations initiated, was nominated for mount a number of 57 females and two rams belonging to the respective color variety. The main followed features were: color, respectively the basis shade which is transmitted to the progeny, and the other predominant traits (type of curls, the size of the loop, fibre quality, gloss of curls). The appraisal method of transmitting the color and traits of which depends the quality of pelts was made in the first 24 hours after birth, based on the technical specifications and instructions of the origin certificate and productive value. Classification of lambs in relation to the productive performance was done on the basis of the total final score. The study was conducted over a period of five successive generations of lambs obtained during the calving period between 2010 and 2015. From the analysis of the way in which the color is transmited to the progeny produced lambs, through the crossing of parents within the variety of silver grey color and during many breeding seasons, it is found that 73.5% had the grey color, and for 26.5% of the total the base color of the curls was another. This data allows us to conclude that in the case of homogenous crossings between parents silver grey this variety of color is of dominant type.

Key words: Karakul, Romanian sheep, pelts, Botosani