The Society’s main objective is to provide its members with
a comprehensive self-financing service comparable to the best in the world
at local-market related prices. Besides the world known herd book system,
annual consulting services, annual farm visit and the other well known
Sim-services, we offer a world recognized performance recording system. (CP
By integrating our Society’s modern pedigree and inspection systems with the
world’s most advanced beef cattle genetic evaluation system viz. BREEDPLAN
International, estimated breeding values (EBV’s) are calculated for a range of
important characteristics and supplied to the breeders. Comparisons based
on weights and/or indexes are history and not recommendable at all in modern
breeding values (EBV's)?
based upon EBV’s is 5 to 9 times more accurate than selection based upon
(Dr J Cowley, USA).
When you look
at a bull a large portion of what you see is controlled by the environment
(food, management, weather, etc.) and the smaller portion is due to genetics.
Only the genetic component is transmitted to his progeny. However, we can’t see
this genetic component separately from the environment’s influence and therefore
we can’t tell:
how much milk a bull’s daughter will give;
how fertile his daughters will be;
how big his calves will be at birth and
how fast his progeny will grow.
The EBV’s are
the genetic merit of an animal and therefore selection decisions are based world
wide mainly on EBV’s. EBV’s are expressed in units of measurement (kg) and are
shown as + or - from the breed average.
do I get EBV's for my stud & commercial animals?
notifications (BN) in one batch when the oldest calf of the group is
old and include dead and culled calves – thus not more than 4 X per year.
Complete the following if accuracy is determinable:
Calving ease code if observed correctly for ALL
calvings (refer  below) – strongly recommended.
Birth weight determined within 24 hours after birth – don’t
guess the weight, weigh ALL calves accurately or don’t weigh at all (refer ).
Management code letter if calving was effected by pre-birth
management of dam (refer ).
The eye pigment codes (refer ) if you are interested in
herds receive a 200-day weighing list from the office. Weigh ALL
the animals on the
culled/commercial) between 80 and 300 days old as
largest possible group
together. Keep the group you weigh as large as possible. Weighing of dams
is recommended but not compulsory.
On request you
receive pre-printed lists for 400-day weights (taken between 300 and 500
days) and/or 600-day
weights (between 500 and 900 days). It is recommended that you measure the
scrotum circumference of all your bulls between 350 to 500 days and
enter these on the 400-day weighing list – measuring sticks are available
from Flaf and Fred.
EBV’s on registration certificates, sale catalogues, show
catalogue and herd lists.
During his visit, the Technical Advisor, analyses the
genetic performance of your herd and animals.
Cows qualify for the “star cow register” – stars on the
An annual report comparing your animals and herd to the breed
in Southern Africa.
Interim EBV’s after submitting new post birth weights. If
recorded, EBV’s for your commercial animals.
For more information, please
More info on the above mentioned:
(1) Calving Ease
(Birth without assistance, some assistance, serious difficulty and caesarian).
These codes on the birth notification form are used for calving
ease EBV’s and are very important. Be as accurate as possible – don’t guess and
record ALL calves not just difficult or easy births.
If you see your females on a regular basis (e.g. daily) it is
reasonable to assume that a cow that calves without assistance between visits
can be considered as “unassisted” (no difficulty) even though you did not attend
If calving was affected by the pre-birth management of the dam
write a management group code (refer ) next to the birth weight or calving
ease code (e.g. 09/A) or enter it in Column 11 on the new BN book.
World wide research has shown that
birth weight has the greatest influence on calving ease – the heavier the more
calving problems. Although individual birth weights can be used as a guide,
birth weight BREEDPLAN EBV’s are much better predictors because they
combine data from several sources. As the bull sires more
progeny, the accuracy of
his EBV improves markedly and his individual birth weight becomes of little
Don’t guess the birth weight – weigh ALL calves accurately within
24 hours after birth or don’t weigh at all. Without an actual birth weight, the
EBV will be lower accurate and will only be based on post birth weights like
If birth weight was affected by the pre-birth management of the
dam (show, sick, transport, etc.) write a management group code letter next to
the birth weight, calving code or Column 11 on the new forms (refer ).
is one of the most important aspects of BREEDPLAN recording. A management group
is a group of animals that are treated in the same way and leave equal
opportunity to perform.
Animals that have received different treatment or management that
could influence performance should be allocated different management group codes*
so that they are not directly compared in the analysis. Examples: pre-birth
management of dam (sick, show, etc.) affected calf’s birth weight/calving code;
calf’s weaning weight affected due to dam that was milked; some animals in group
fed for show or sale; significant differences in feeding/grazing that affected
the weight. Grouping is not required for sex, twins, age and cow status
(heifer/cow) as the computer handles that.
Enter letters of your own
choice (from A to Z) on the birth notification and weight lists e.g. M = dam
of weaner milked, S = dam of calf fed for show before birth, K = weight of
animal affected by sickness etc. If no management group letter are entered it
will be accepted that all animals in the weighing group has received the same
Fertility still nr. 1
breeding system, whether it be extensive or intensive, commercial or stud
breeding, REPRODUCTION has a greater effect on income than growth rate or any
other trait. The SIMPRO (SIMmentaler rePROduction) system involves a
comprehensive report of reproduction and breeding criteria of all females which
is critically analysed by the Breed Advisor and owner within herd context.
Simpro based selection ...
saves the breeder money (illuminates money gobblers);
measures adaptability better than “the eye” (unadapted cows are
determines the correct cow size better than any judge (good
reproducers have the correct size);
identifies superior breeding cows (inspection record next to
each calving date);
aids management (days open, calves not reported and many
accelerates genetic progress (higher reproduction standard).
Simpro herd lists are
available, free of charge, per e-mail or at the annual visit of the Breed