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CROSSBREEDING
If you are considering or doing crossbreeding - SANTA
GERTRUDIS IS THE ANSWER
In the stud industry
the biggest problem is that breeders forget what the cattle
industry is about. Stud breeders can thus start living in
their own small world in colour markings and pedigrees that they
forget what is really important, namely the requirements of the
commercial breeder. If stud breeders would listen to what
the commercial breeder says and produce what he wants, he will
always be in business.
Commercial breeders attend
auctions and tend to buy the cheapest bull on sale, no matter what
breed it is, it is going to be the new bull / breed in his
crossbreeding programme.
What we should be striving for is
to be producing the biggest amount of saleable beef from the grass
growing on the farm. To achieve this goal, we must breed
cattle that will maintain high standard in the following
production characteristics: fertility, milk production,
vitality, weight gain, length, muscling and temperament.
Cattle must also possess constitution, of which the Santa
Gertrudis breed has ample.
Characteristics with a low
heritability, e.g. fertility, the most important characteristic
of breed production, cannot be improved upon quickly by selection,
but can be greatly enhanced by using Santa Gertrudis bulls in the
crossbreeding programme.
Mortality goes hand in hand with
fertility. Dr Rex Butterfield of Australia once said:
"A dead calf still has a distressingly poor growth rate even
if we know why he is dead". Santa Gertrudis cows have a
very low calf mortality rate and are renown for producing calves
op to 16 years of age.
Milk production is just as
important. The commercial breeder cannot afford to try and
rectify this characteristic by selection alone when he can do so
by using another breed. It is probably the highest single
factor that will determine how many kilograms of beef a cow will
produce over twelve months, because milk is a food. In the
case of the weaner calf producer, the weaning weight produced by
the breeding cows per hectare is the correct measurement to use.
Fertility is very important, and
therefore one must not overlook the cow. It is of the utmost
importance that one's cows are highly fertile.
With crossbreeding you can find
the desired combination to suite your conditions and production
system. The bigger the genetic variation between breeds, the
better the hybrid vigour.
In extensive conditions the best
results of crossbreeding will be achieved by crossing an European
breed (Bos Taurus) with a Zebo (Bos Indicus) breed or a developed
breed such as the Santa Gertrudis.
Hybrid vigour is not
heritable. To maintain this, the crossbreeding programme
must be correctly managed (do not buy the cheapest bull on
sale). In any crossbreeding system selection with
performance and conformation in mind, is just as important as in
stud breeding.
Thus, one of the most important
aspects in a crossbreeding programme is the bull in use. The
purchase of a bull must be seen as in investment and not a burden
or liability. It is mainly the bull that will determine the
quality of your future herd. In influence of the last three
bulls you bought into the herd is nearly 90%. The long term
effect of a good or poor bull in the future herd is there-fore
clearly noticeable.
Ask yourself the following
questions:
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What natural feed
resources are available?
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What cultivated fodder
is economically available?
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Based on feed resources,
what system of production (weaner, yearling, long
yearling, oxen off the veldt or feed lotting) is the
most profitable?
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Finally and most
importantly, do I like the breed?
What is a better
bull? It is a bull that when you look at him and his
performance records (BLUP figures) and his ancestors and you think
he should breed you better calves with better weaning weights than
your previous bull, the chances are good that it is a better
bull. If the bull meets all your expectations, then you
should buy him.
By using a Santa Gertrudis bull,
you can of course need only concentrate on one breed because the
pure Santa Gertrudis weighs as much at 18 months as other breeds
with the advantage of crossbred hybrid vigor. You have the
added advantage of having an uniform cherry red herd.
In the conclusion the following:
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Firstly, breed
quality: For the consumer, so that he can feel
satisfied and gets value for money.
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Secondly, for the
butcher so that he can keep his customers happy and make
a profit.
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Thirdly, for the feedlot
owner: So that he can keep the butcher happy and
also make a profit.
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Fourthly, for yourself
because you want to be proud of your product and you
deserve to make a profit.
If
you use Santa Gertrudis bulls, you can have confidence in your
product.
Lasiter
said: "Cattle breeding is a simple process - the secret is
just to keep is simple".
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