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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