"Outcross" Shorthorn bulls

It actually can serve to increase the number of individuals who carry a disease recessively. why put off what one can increase today? 

The outcrossing numbers increaser improves their herd by hybrid vigor until it tapers off.  then they have giants and have fixed inconsistency, the exact opposite effect that most breeders desire.  on the other hand, the exact opposite abuse is inbred runts.  both are enhanced without ruthless culling.

lack of test crossing on daughters is annoying.

knabe said:

if someone had 10% COI, would anyone be concerned?

here's the only COI calculator i know of online.  unfortunately, it doesn't let you store what you've typed.  i think it will do up to 13 generations.  i used to have someone calculate them till i got bored and couldn't get anything above 5% except for a couple of animals and certainly hardly anything that wasn't something like father daughter/half sib matings which almost no one maintains that i know of.

http://www.czerwonytrop.com/inb/index.php?full=ok&lng=pl

as much as everyone is seems to be concerned about it, it really isn't an issue. 

much like everyone gets scared of causes of death that are rare, but does nothing about death that is common and takes massive risk, ie driving cars.

Click to expand...

That's a good page once I realized it translates to English!it gives some good definitions but the math formulas,way over my head ???
I used to use a Wright's Inbreeding Calculator program. It was before we had electronic herd books and I entered most of my herd. Then my computer crashed and I hadn't backed up everything, a valuable lesson in why one should continually back up but frustrating! I had inputted some of the Foundation animals of the breed with multiple crosses of full sibs, mother to son, daughter to sire etc.
There is web site, Canadian Registered Shorthorn Cattle and Farmer Directory Services, that allows you to input animals registered at CLRC and get inbreeding coefficients etc.
Here is the link, if it takes you to the correct page it gives the info on a half sib mating.
http://www.palmpig.ca/directory/Ancestors?animal_id=2027606&istree=yup&treegen=5&treeCd=

knabe said:

if someone had 10% COI, would anyone be concerned?

here's the only COI calculator i know of online.  unfortunately, it doesn't let you store what you've typed.  i think it will do up to 13 generations.  i used to have someone calculate them till i got bored and couldn't get anything above 5% except for a couple of animals and certainly hardly anything that wasn't something like father daughter/half sib matings which almost no one maintains that i know of.

http://www.czerwonytrop.com/inb/index.php?full=ok&lng=pl

as much as everyone is seems to be concerned about it, it really isn't an issue. 

much like everyone gets scared of causes of death that are rare, but does nothing about death that is common and takes massive risk, ie driving cars.

Click to expand...

how do you operate this site?  I'm guessing the first pull down is generations.. but what's the 2nd? 

select the number of generations   Ilość pokoleń  =  Number of generations

Ilość przodków ze znanym współczynnikiem inbredu =  Number of ancestors with known coefficient of inbreeding  which you can make 0

dalej = continue

then, manually type in names.  yes, it's long and tedius, but you could use numbers with a code on an excel sheet to make it quicker as there is no way to save info that i have found.  then hit continue or dalej again to get percent of blood by ancestor

http://www.czerwonytrop.com/gb/indexgb.html


try this link.  it might be english.  there's hunting photos too.

piddle around with the flags and an english version will show up.