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Interpreting Hungarian Charolais Selection Indexes

There are currently three different selection indexes calculated for Hungarian Charolais animals. These are:

  • Magyar Charolais kissúlyú Tenyésztői Index (MCkTI)/Hungarian Charolais lightweight postweaning breeder index
  • Magyar Charolais nagysúlyú Tenyésztői Index (MCnTI)/Hungarian Charolais heavyweight breeder index
  • Magyar Charolais Végtermék Index (MCVI)/Hungarian Charolais terminal index

Each selection index describes a different production/market scenario and relates to a typical commercial herd using Hungarian Charolais bulls. Producers are advised to use the selection index that most closely aligns to their production system. In addition, each selection index targets the following specifications.

MCkTI - Estimates the genetic differences between animals in net profitability per cow joined for an example commercial self-replacing herd where Charolais bulls are joined to European breed females. Steers and heifers are pasture finished before marketed at 275 kg and 250 kg live weight, respectively, at 8 months of age. Some daughters are retained for breeding.

MCnTI - Estimates the genetic differences between animals in net profitability per cow joined for an example commercial self-replacing herd where Charolais bulls are joined to European breed females. Steers and heifers are finished in a feedlot for 300 & 365 days, before marketed at 730 kg and 600 kg live weight, at 17 & 18 months of age, respectively. Some daughters are retained for breeding.

MCVI - Estimates the genetic differences between animals in net profitability per cow joined for an example commercial herd where Charolais bulls are joined to European breed females. Steers and heifers are pasture finished before marketed at 275 kg and 255 kg live weight at 8 months of age. No daughters are retained for breeding.

All selection indexes are reported as an EBV, in units of net profit per cow mated for a given production/market scenario. They reflect both the short term profit generated by a sire through the sale of his progeny, and the longer term profit generated by his daughters in a self-replacing cow herd (where applicable).

All selection index values have been derived using BreedObject technology. More detailed information regarding each selection index is provided in the downloadable document.