Mark DeBoo

I am the third generation DeBoo raising functional Angus cows. It all
started with my grandfather and grandmother (Charlie and Mary) in the
1950’s. At that time, Charles was the only registered Angus breeder in
the Golden Triangle area of Montana. In the early days, he owned a bull
called Pattern of Wye. Pattern of Wye was instrumental in shaping the
future for DDA.
In 1972, my grandfather’s life was cut short after hip replacement surgery.
He died less than 24 hours later.
My dad and mom (Don and Janet) were married in 1957 and started
raising cows on shares with my grandparents, on a small ranch 10 miles
southwest of Valier. My Mom and Dad raised 7 kids on this small operation.
Needless to say, everyone needed to learn how to work and be very
thrifty and efficient. That also included the cows.
In 1962, my Mom and Dad bought their first registered Angus heifers. They
continued raising commercial cattle at that time. Due to the influence
from Pattern of Wye, my Dad learned that all cows were not created
equally. In the 1960’s, most cattle were very short and blocky; they would
have been a frame score of 1 or maybe in the negative figures. The Wye
cattle were the larger framed cattle for the time period. The industry
trend changed in the late 60’s and early 70’s to larger framed cattle and
the Wye cattle became very popular. There were a lot of very functional
cattle at that time. The trend continued to go larger and larger framed in
the late 70’s and 80’s. My parents tried to follow the trend until the early
1980’s.
I am very thankful that at that time my parents knew what a really good
functional Angus cow was like. It did not take them long to understand the
direction the industry was headed and this was not the path they wanted
to be on. Due to the influence of the Pattern of Wye bull in the early 70’s
and the direction the whole industry was headed, Diamond D Angus knew
they didn’t want to follow this route. They decided with the knowledge
of the old Pattern Bull, they would once again go to the Wye herd for
their genetics. My parents spent many years selling bulls private treaty to
repeat commercial buyers.
After working 6 years as a mechanic for John Deere, I (Mark) moved back
to the ranch in 1988. We had our 1st production sale in the spring of 1989
in an old barn. Looking at it today, I still wonder how we did it. At that time,
we were selling about 50 bulls at the sale. Perhaps our competition was
averaging more per bull than we were, for it was the start of the big EPD
race.
We continued to line breed for functional, maternal and efficient traits. This
was not a popular or easy path to be on at the time. I am 100% convinced
it was the proper path to take.
In 2006, we had our first fall production sale where we sold long yearling
forage developed bulls. I would challenge any registered breeder to
forage test your bulls if you really want to know what they are made of.
This has proven to be a very good change for DDA. In recent years, we
are selling our genetics all over the US, Canada and Argentina.
My wife Cathy and I now sell about 130 bulls every fall and about 100 bred
females at our production sale. This is our 12th annual Sire Directory where
we offer our time-tested line bred genetics.

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Mark DeBoo Diamond D Angus

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