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Table 2 Proportion of rams sourced by end-users from each breeding subpopulation in 2019

From: Genetic and economic benefits of foreign sire contributions to a domestic sheep industry; including an Ireland-New Zealand case study

End-users Breeding subpopulations
CON PRO PROFOR FOR COM
CON 0.93 0.07 0 0 0
PRO 0 1 0 0 0
PROFORa 0 1 − xt 0 xt 0
FOR 0 0 0 1 0
COM 0.87 0.13 0 0 0
  1. CON conservative breeders, PRO progressive breeders, PROFOR progressive foreign breeders, FOR foreign breeders, COM commercial farmers (source: Sheep Ireland)
  2. aPROFOR rams were sourced from FOR and PRO flocks at a proportion (x) specific to time t
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Genetics Selection Evolution

ISSN: 1297-9686