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Table 5 Effects included in the genetic models for genetic parameter estimation for production and fertility traits

From: Effect of recent and ancient inbreeding on production and fertility traits in Canadian Holsteins

Traitsa

Fixed effectsb

Random effectc

YSC

ARC

RYS

Mf

ApMp

ApMf

HY

HRYS

T

SS

A

MY (kg)

●

●

    

●

   

●

FY (kg)

●

●

    

●

   

●

PY (kg)

●

●

    

●

   

●

AFS_H (day)

  

●

    

●

  

●

NS_H

  

●

●

   

●

  

●

NRR_H

  

●

●

   

●

●

●

●

FSTC_H (day)

  

●

●

   

●

   

CTFS_C (day)

  

●

 

●

  

●

  

●

NS_C

  

●

  

●

 

●

  

●

NRR_C

  

●

  

●

 

●

●

●

●

FSTC_C (day)

  

●

  

●

 

●

  

●

  1. aMY milk yield, FY fat yield, PY protein yield, AFS_H age at first service for heifers, NS_H number of service for heifers, NRR_H 56-day non-return rate for heifers, FSTC_H first service to conception for heifers, CTFS_C conception to first service for cows, NS_C number of service for cows, NRR_C 56-day non-return rate for cows, FSTC_C first service to conception for cows
  2. bYSC year of calving by season of calving, ARC age at calving by region of calving, RYS region by year of birth by season of birth, Mf month of first insemination, ApMf age at previous calving by month of first insemination by parity, ApMp age at previous calving by month of previous calving by parity
  3. cHY herd by year of birth, HRYS herd within RYS, T AI technician, SS service sire by year of insemination, A random animal effect
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BMC Genomics

ISSN: 1471-2164

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