Production lifetime

Production lifetime

A higher life-time production means lower input of new heifers. You will save money. Life time production has 2 components: production yield per day and total days of production during life-time.

Table 1. The weighted average of all 305-day lactations

  Holsteins G1: MON x HF G2: VR x HF
No. of Lact 1.100 1.653 1.017
Milk (kg) 11.208 10.588 10.506
Kg Fatt 401 391 390
Kg Protein 346 336 335
Kg Fatt + Kg Prot 747 727 725
% comp to HF   -3% -3%

Table 2. Total lifetime production

  Holstein G1: MON x HF G1: VR x HF
Cows No. 380 491 314
Milk (kg) 28.480 + 4.200** + 1.753
KG Fat 1.033 +191** + 99*
KG Protein 897 +152** + 77 †
KG Fat + Kg Protein 1.930 +343** +177 †
% comp to Holstein   + 18% + 9%

Production within the 4-year period (1.461 days) after first calving.
** p < 0.01, * < 0.05, † p < 0.10

Table 3. Input values for lifetime profit

Replacement cost
$ 1200
Live heifer calf
$ 250
Live bull calf
$ 100
Dead cow disposal
$ 125
Cull cow
$ 525
Breeding cost
$ 40
  • Feed costs for daily fat-corrected milk of each cow with fixed body weight of 545 kg (first lactation) and 680 kg (later lactations)
    $ 5.33 - Average daily feed cost
  • Actual value of all solids and SCC in milk for U.S. from 2007 to 2009
    $ 15.61 / cwt - Average milk price

Table 4. Total lifetime profit (ignoring health costs)

Trait Pure Holstein G1: MON x HF G1: VR x HF
Number of cows 416 503 321
All cows $4.347 $6.503** $6.272**
Extra gain comp. to Holsteins   +$2.156** +$1.925**