Region:
CSZ - Cereal Sheep Zone
MRZ - Medium Rainfall Zone
Breed:
Merino - includes all Merino to Merino matings
Meat - includes all non Merino matings
* where possible all ewe lamb matings and ET and AI matings have been removed from the dataset.
Reproductive rate = # of foetuses scanned (twins and singles) per 100 ewes joined expressed as a percentage.