R. Popa

OPTIMIZATION OF POPULATION SIZE AND STRUCTURE IN AN OFFSPRING SELECTION PLAN FOR MILK PRODUCTION TRAITS OF RAMS FROM PALAS MILK LINE

R. Popa, H. Grosu, Dana Popa, M. Maftei, Livia Vidu, Georgeta Diniţă, Nicoleta Isfan, Carmen Nicolae

Abstract
The aim of this paper is the optimization of population size and structure in an offspring selection plan of rams, according to Robertson and Rendell model for bovines (1951), which will be propose for implementation in Palas Milk Line for genetic increase of milk production traits. The method used in this paper work is modeling, which exist in the most animal breeding scientifically papers. After the simulations, we observed that the most convenient variant was that which prefigure an active population size of 400 females and from those 55% represented elite group and 45% testing group.

Key words: offspring selection plan, optimization


OPTIMIZAREA MĂRIMII ŞI STRUCTURII MĂTCII ÎNTR-UN PLAN DE SELECŢIE PE DESCENDENŢI A BERBECILOR PENTRU CARACTERELE PRODUCŢIEI DE LAPTE ÎN LINIA DE LAPTE PALAS

R. Popa, H. Grosu, Dana Popa, M. Maftei, Livia Vidu, Georgeta Diniţă, Nicoleta Isfan, Carmen Nicolae

Rezumat
Scopul lucrarii propuse consta īn optimizarea marimii si structurii matcii īntr-un plan de selectie pe descendenti, dupa modelul celui elaborat de Robertson si Rendell la taurine (1951), propus a fi aplicat pentru ameliorarea caracterelor asociate cu productia de lapte īn Linia de Lapte Palas. Metoda de lucru utilizata este cea care se regaseste īn majoritatea lucrarilor de ameliorare, respectiv modelarea. Īn urma simularilor efectuate, s-a constatat ca varianta cea mai convenabila pentru populatia data este cea care prevede o marime a populatiei active de 400 de femele, dintre care 55% vor constitui grupa elita si 45% grupa testare.

Cuvinte cheie: plan de selectie pe descendenti, optimizare