Calculation of inbreeding coefficients
After the program inbred.zip and lf90.zip files have been down loaded as inbred.exe and
lf90.eer (both files shall be in the same direktory) can inbred.exe be run ! ! !
A dataset can look as shown below, the oldest animal come først. Every line contains
animal No, father No, mother Nr, and generatio No. Exist no information about
father and mothe put 0,
11 0 0 1
10 0 0 1
9 0 0 1
8 11 10 2
7 11 10 2
6 9 10 2
5 0 0 1
4 7 6 3
3 6 5 3
2 8 4 4
1 2 3 5
In the following ar show a path diagram and a print from inbred.exe run with the dataset
above as input.
III NN NN BBBBBB RRRRRR EEEEEEEE DDDDDDD
III NNN NN BB B RR R EE DD D
III NN N NN BB B RR R EE DD D
III NN N NN BB B RR R EE DD D
III NN N NN BB B RRRRRR EEEEE DD D
III NN N NN BBBBBB RRR EE DD D
III NN N NN BB B RR R EE DD D
III NN N NN BB B RR R EE DD D
III NN NNN BB B RR R EE DD D
III NN NN BBBBBB RR R EEEEEEEE DDDDDDD
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A PROGRAM TO CALCULATE INDIVIDUAL INBREEDING COEFFICIENTS
AND GENERATION COEFFICIENTS
Program written by
Peer Berg
Danish Institute of Animal Science
Dept. Animal Breeding and Genetics
Research Centre Foulum
P.O.Box 39, 8830 Tjele Denmark
Phone : +45 89 99 12 26
Fax : +45 89 99 13 00
E-mail: Peer.Berg@sh.dk
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Program uses a bit-tree to renumber animal id's and computes indivi-
dual inbreeding coefficients based on the algorithm proposed by :
MEUWISSEN, THE & LUO, Z.; 1992. GENET. SEL. EVOL. 24:305-313.
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File with Relationships : f.txt
Number of animals in pedigree : 11
Animal Sire Dam Group Inb.coeff Gen.coeff
11 0 0 1 0.0000 1.0000
10 0 0 1 0.0000 1.0000
9 0 0 1 0.0000 1.0000
8 11 10 2 0.0000 2.0000
7 11 10 2 0.0000 2.0000
6 9 10 2 0.0000 2.0000
5 0 0 1 0.0000 1.0000
4 7 6 3 0.1250 3.0000
3 6 5 3 0.0000 2.5000
2 8 4 4 0.1875 3.5000
1 2 3 5 0.1094 4.0000
Group Total Inbred Total Inbred Maximum
N N av. F av. F F
1 4 0 0.0000 0.0000 0.0000
2 3 0 0.0000 0.0000 0.0000
3 2 1 0.0625 0.1250 0.1250
4 1 1 0.1875 0.1875 0.1875
5 1 1 0.1094 0.1094 0.1094
ALL 11 3 0.0384 0.1406 0.1875
Theory in danish