THE ANALYSIS OF CORRELATIONS BETWEEN THE MAIN TRAITS OF WOOL PRODUCTION ON PALAS SHEEP LINE FOR MEAT, MILK AND HIGH PROLIFICACY
Keywords:
wool production, wool diameter, staple length, body weight at shearing, phenotypic correlation, regressionAbstract
The aim of this paper was to analyze the coefficient of phenotypic correlation and regression between main wool production traits for the sheep belonging to the Palas
line specialized for meat, milk and with high prolificacy. The study was performed on a 10 years interval, the phenotypic correlation and the regression being determined for age groups and body weight classes for the following traits: raw wool production, the staple length, wool diameter and body weight at shearing. The obtained results are showing that for the specialized sheep lines the efficiency of wool production is also higher for the sheep with moderate body weights but for
these sheep lines the selection for body weight will be done based on the morphoproductive parameters specific to the purpose of exploitation (milk production, meat production or high prolificacy).
References
Mochnacs, M., Stefanescu, C. ( 1972) – Corelatii fenotipice între principalele caractere de productie la oile din rasa Merinos de Stavropol, Lucrari Stiintifice ale SCCCO Palas, vol I, pg. 71-84, Redactia Revistelor Agricole, Bucuresti
Patape, M., Pivoda, I. , Ursescu, Al. (1989)- Cercetari privind corelatiile
dintre principalele însusiri fizico-mecanice ale fibrelor de lâna la rasa Merinos de Palas Lucrari Stiintifice ale ICPCOC Palas Constanta, vol. VI, Redactia de Propaganda Agricola , Bucuresti
Sandu, Gh. (1995)– Modele experimetale în zootehnie,Editura Coral Sanivet,Bucuresti
Safari, E., Fogarty, N.M. , Gilmour, A.R. s.a ( 2007)- Genetic correlations
among and between wool,growth anf reproductions traits in Merino sheep-Journal of Animal Breeding and Genetics, vol.124, number 2 .pg 65-72
Ursescu, Al., Timariu, S., Stefanescu, C., Calatoiu, E. (1973)– Corelatiile
fenotipice dintre principalele însusiri productive la oile Merinos de Palas,Lucrari Stiintifice ale SCCCO Palas, vol I, pg. 7-24
