Transcript Cattle Breeding

CATTLE BREEDING
By: Jeremy Coleman
Progression
 Since the start of existence to right now, this very
second everything is changing. The same goes for
cattle breeding processes and practices. The
progression of cattle breeding has been brought
from… “letting it happen” to now-a-day practices of
extracting and selection of the best genes to then
be put into a specifically bred female mother cow
to produce genetically “better” offspring. With the
evolution of cattle breeding the process has
become a more developed, efficient, and a better
practice.

The first introduction of artificial insemination was
with Arabian horses in the 1300’s, and in 1780 an
Italian biologist by the name of Lazzaro Spallanzani
did his first AI procedure in sheep, but really it didn’t
start taking off until 1907 when vetinarian Elias
Ivanov opened a testicle of a dead, snow-frozen
sheep and found live spermatozoids. Even though the
technique was invented many years ago it didn’t
become more viable until the 1940’s and 50’s. The
American Breeders Services (ABS Global) was the first
to improve their services by selling liquid nitrogen to
farmers for storage.

http://www.aces.edu/pubs/docs/U/UNP-0095/UNP0095.html
Embryo Transfer

 The first successful Embryo Transfer took place in
England in the 1890's. This was by a man named Walter
Heap. Heap used rabbits as his first test subjects.
Although the experiments was a success, Embryo
Transfer has not been used in commercial areas until the
bringing up of the hormone FSH, (Follicle Stimulating
Hormone) this happened in the 1950's. Originally the
only technique was surgical, and it was to both flush and
implant the embryos. While these practices were
successful; they were very expensive and required a large
amount of experience for the practicer.
Cattle breeds
Cattle breeding has affected everything that is now the
cattle industry. When you look at the piece of meat you
are about to eat it has been affected by gene crossing and
processes within cattle breeding. During cattle breeding
everything from AI to “letting it happen” (still has chosen
the two best cows of the group).
All breeds from the angus to the Randall breed have all
been apart of the cross gene process within cattle
breeding
List of Breeds
Highland Cattle
Kholmogory
Belgian Blue
Brahmin
Reina
Tuli
Salers
South Devon
Tudanca
Angelin Cattle
Bue Lingo
Affected Areas
 Cattle
breeding has affected everything
in the cattle association.
 The programs and techniques has also
affected human AI programs and the
Human AI programs actually get their
know how from the cattle breeding
programs.
Bibliography
 "Artificial
Insemination of Cows." Artificial
Insemination. Web. 16 Apr. 2012.
 "Embryo Transfer in Cattle." Highland
Cattle. Web. 16 Apr. 2012.
<http://www.cruachan.com.au/embryo_t
ransfer.htm>.