Breeding values and actual daughter productions in figures

Category: Production
Breeding values and actual daughter production in figures

Statistics addicts can feast their eyes on these tables: they present the actual production figures of the most important and most popular bulls. A lower limit of at least 75 milk records per lactation applies.

Transmission of +750 for kilos of milk, –0.10% for fat and +45 for kilos of protein. CRV publishes new breeding values for bulls three times a year. These breeding values are based on hard figures. Delta Potter P, for instance, owes his high breeding value for protein to the performance of his offspring. And L W Crescendo’s daughters ensure their sire is known for the generous quantities of milk he passes on.

These raw, uncorrected production figures form the basis of the estimated breeding values. The rule for all bulls is that daughter productions are only published if at least 75 milk records are available per lactation. Generally speaking, the more daughters a bull has, the closer the actual production figures correspond to the breeding values. Take Bouw Rocky and Apina Malcolm, for example. The duo shows a clearly different inheritance pattern for kilograms of milk. On paper Malcolm passes on around 1100 kilos more than Rocky. Half of that, about 550kg, should be apparent in the milk production of his daughters. The practice confirms this quite well: as heifers, Rocky daughters produce 8011kg and Malcolm’s daughters nearly 8500kg.

Name bullBirth
year
Breed. val.
kg milk
305 day prod.
as heifer
(kg m.)
Bouw Rocky2012+1968011
Apina Malcolm rf2012+12918499
Topspeed Kodak2005+2047359
Delta Maiko2014+2937770


Table 1: Comparison of breeding value for milk production and actual daughter productions for a number of bulls

Uncorrected figures

However the raw, uncorrected production figures and breeding values do not always dovetail so neatly. Sometimes, for example, a particular bull has been mainly used on high-productive cows and/or farms. Variations in the age at calving, or the year of calving, can also lead to differences between raw production figures and breeding values. To avoid creating a distorted picture, this effect is factored into the estimated breeding value.

MILK, FAT AND PROTEIN IN 305 DAYS
List. No.
(Lactation)
Number of
lactations
kg
milk
%
fat
%
protein
kg
fat
kg
protein
Double W Ranger
1st list4608.0104,363,56349285
Delta Magister
1st list2.8138.6054,153,53357304
Bouw Rocky
1st list9.2998.0114,323,53346283
2nd list4.1909.6504,343,61419348
3e lijst71710.5734,313,58456378
4th list19810.6374,343,58462381
Delta Jupiler
1st list1.2728.4724,073,51345297
Weelder Empire
1st list4278.2314,313,55355292
Vero Startrek
1st list8.0358.5954,213,54362304
2nd list3.6789.7264,303,67418357
3rd25010.2234,313,67441375
Batenburg G.
Stellando rf
1st list37.2018.2204,323,55355292
2nd list23.7869.5144,343,64413346
3rd10.83610.1644,353,58442364
4th list5.01610.2404,383,56448365
5th list96810.1874,363,56444363
Horst Allard rf
1st list1807.9334,413,67350291
2nd list1479.4104,463,77420355
3rd1139.9904,543,74454374
Delta Atlantic
1st list59.3197.9484,213,59335285
2nd list44.3789.5364,223,62402345
3rd27.54710.1524,273,58433363
4th list12.20610.3054,323,57445368
5th list3.10310.1584,353,57442363
Delta Solero
1st list2.3207.9534,303,53342281
2nd list7709.3964,363,63410341
3rd45510.3174,383,61452372
4th list30010.3654,463,61462374
5th list10010.9564,383,62480397
Delta Rosebud
1st list2.5457.8434,313,61338283
Kingfarm Holsteins
Anreli
1st list2508.0084,373,57350286
Delta Potter P
1st list2207.9024,393,71347293
2nd list1888.9064,543,85404343
3rd1179.7184,503,80437369
Bruchter Passe
1st list1.3677.8174,403,58344280
2nd list5329.3074,383,66408341
3rd1489.9004,433,66439362
4th list11010.0884,463,61450364
Delta Maiko
1st list4967.7704,573,67355285
2nd list3558.9404,573,75409335
Flavio
1st list1296.5564,103,51269230
2nd list917.8624,223,59332282

Showing 1 to 73 of 73 entries

Table 2: Uncorrected 305-day milk records of daughters of the most popular bulls in the Netherlands, ranked by category per number of first inseminations in the 2019-2020 financial year