1/2-Brother to 1/2-Sister
                                                C-of-I= 12.50

               |->  4s SIRE               RC=47.14%         The inbreed comes from the SIRE who contributes
          |->  2s 1/2-Brother        RC=58.93%              12.5 to the inbreeding coefficient.    
          |    |->  5d outside-hen-1      RC=23.57%                                                                   
          |                                                 You may have gueesed that both the 1/2-Brother and the
     -->  1  TARGET-BIRD        CI=12.50%                   1/2 sister; who have a 50% percent blood relationship
          |                                                 to the TARGET-BIRD are move closely related to the      
          |    |->  6s SIRE               see position 4    TARGET-BIRD.  In this case the relationship is 59%.     
          |->  3d 1/2-Sister         RC=58.93%                                                                        
               |->  7d outside-hen-2      RC=23.57%                                                                   

                   S       FR LA             --SIRE-- ---DAM-- INDPD   EST  PAIR                       
                   E   COI ST ST NO NO  PCNT NO  PCNT NO  PNCT INDVD   REL  BACK                       
ID                 X  PCNT GN GN OS OC BLOOD OC BLOOD OC BLOOD CONTB CONTB   COI SIRE               DAM
------------------ - ----- -- -- -- -- ----- -- ----- -- ----- ----- ----- ----- ------------------ ------------------
SIRE               m  0.00  3  3  2  2 50.00  1 25.00  1 25.00 12.50 47.14 25.00                                      
outside-hen-1      f  0.00  3  3  1  1 25.00  1 25.00  0  0.00  0.00 23.57 12.50                                      
outside-hen-2      f  0.00  3  3  1  1 25.00  0  0.00  1 25.00  0.00 23.57 12.50                                      
1/2-Brother        m  0.00  2  2  1  1 50.00  1 50.00  0  0.00  0.00 58.93 31.25 SIRE               outside-hen-1     
1/2-Sister         f  0.00  2  2  1  1 50.00  0  0.00  1 50.00  0.00 58.93 31.25 SIRE               outside-hen-2     
TARGET-BIRD        ? 12.50  1  1  0  0  0.00  0  0.00  0  0.00  0.00  0.00  0.00 1/2-Brother        1/2-Sister        

ID. The entered identification for the bird being considered.

SEX. 'm' stands for a male. 'f' stands for a female.

COI PCNT.  The inbreeding coefficient is 1/2 of the relationship of the relationship between a bird's parents. It starts at zero for random mating and increases toward 100 percent as the probable proportion of heterozygous goes toward zero.  Higher numbers indicate less diversity. If an individual is exceptional and has a higher inbreeding coefficient he has a better chance of passing on his good traits to his offspring than a non-inbred bird. The Coefficient of Inbreeding is changed to a percent (multiplied by 100). e.g. animal A has a coefficient of inbreeding of .1250 which is restated as a COI of 12.50%.  Notice that animals have a value in the SIRE SIDE PCNT BLOOD and the DAM SIDE PCNT BLOOD when the COI PCNT is not zero.  This follows from the path tracing or manual methods of computing inbreeding coefficients.  Only animals with a contribution to the pedigreed individual on both sides of the pedigree contribute to its inbreeding coefficient.

FT ST GN.  The earliest generation where this bird appears in the pedigree (fists generation).

LA ST GN.  The highest generation where this bird appears in the pedigree (last generation).

NO OS.  The number of different offspring from this bird in this pedigree (number of young).

NO OC.  The number of times this bird occurs in the pedigree (number of occurrences).

PCNT BLOOD.  The percentage blood of this bird in the pedigree.  Each immediate parent contributes 1/2 to the make up the pedigreed animal.  On average grandparents contribute 1/4, great grandparents 1/8, etc to the pedigreed animals makeup.  This is the total of this contribution for all of the ancestor's appearances in the pedigree.

SIRE NO OC.  The number of times this bird occurs on the sire's side of the pedigree.

SIRE PCNT BLOOD.  The percentage blood of this bird on the father's side of the pedigree (the top half of the pedigree).

DAM NO OC.  The number of times this bird occurs on the dam's side of the pedigree.

DAM PCNT BLOOD.  The percentage blood of this bird on the dam's side of the pedigree (the bottom half of the pedigree).

INDPD INDVD CONTRB.  The Independent Individual Contribution to the inbreeding shows the COI influence of the chosen ancestor if was considered by itself in computing the COI of the pedigreed bird.  Birds G & H are the parents to bird D.  When we compute the contribution to inbreeding for animal D it includes the common genes coming from D’s parents.  We can see that animal D considered by itself contributes 12.5% to A’s COI of 12.5%.  But what if we had used a half sibling of D on one side of the pedigree.  The common ancestor G or H would still remain and contribute 3.12% to the pedigreed birds COI.  This number in conjunction with the EST REL CONTB can help you see which ancestors have the most influence on the pedigreed bird.
 
EST REL CONTB.  Estimated Relative Contribution.  This is a measure of the relationship of the ancestor to the pedigreed bird.  This is the relationship from the matrix used in computing the inbreeding adjusted for inbreeding.  The adjustment takes the relationship and divides it by the term Sqrt((1 + the COI of the pedigreed animal) times (1 + the COI of the ancestor)).  Percent blood is an attempt to measure the source of genes.  EST REL CONTRB attempts to estimate the likelihood that genes in the pedigreed are identical to the genes in the ancestor being considered.  This relationship like the COI is expressed as a percentage rather than as a decimal number.

• Case 1. Consider birds E and F which both make 1 appearance in the pedigree in the third generations.  Bird F at 26.35 has a higher relationship to the pedigreed bird than bird E at 23.57.  This is because bird F was inbreed and has more than the average number of genes concentrated in his makeup.
• Case 2. Birds B & C have percent of blood equal to 50%.  However the estimated relationship of the birds to the pedigreed bird is 58.93%.  This is because birds B and C both have a common parent D. More than the average number of genes in the animal B may be the same as genes in animal C coming from D.  Because these genes are more likely to appear in the pedigreed bird A the relationship to A exceeds the contribution suggested by the percent blood.
• Case 3. Consider birds L and I.  Both birds appear only once in the pedigree in generation 4.  Both birds have a 12.50 percentage blood.  Bird I's contribution is 11.79% while bird L is mated back to his sire K.  Bird L then has a better change of passing some of his genes ( from the sire ) to animal A.  Bird L has a contribution of 17.68% which exceeds her percentage blood of 12.50%.

USE of EST REL CONTRB. "The most important practical use of relationships is in predicting the most probable merit of unknown or perhaps even unborn individuals from the merit of their known relative" James J. Lush Animal Breeding Plans 1963. If you had a really consistent measure of performance of a bird and of its offspring; then EST REL CONTRB would be the multiplier of that measure to use in estimating the pedigreed bird's performance and possibly its breeding potential.

PAIR BACK COI. The COI of the offspring if this pigeon and the target pigeon of the pedigree were mainted together.

SIRE. This bird's father.

DAM.  This bird's mother.