Dr. David Christensen – 2008 WCDS Award Recipient
Dr. Christensen’s specialization is dairy nutrition, management and feeds
research. Early in his career he helped establish the Saskatchewan Feed Testing
Laboratory. This initiative brought scientific nutrition information and ration
formulation to the farm.
Throughout his career Dr. Christensen explored alternate and more economical
feed, forage and protein sources for dairy cattle and introduced the latest
dairy nutrition and ration formulation advancements to the dairy industry in
Saskatchewan and around the world. In response to the enormous growth in the use
of corn silage in eastern Canada and the USA, he developed whole crop cereal
ensiling techniques and developed rations for dairy and beef cattle based on
cereal silage that were widely adopted in western Canada. Throughout the years
Dr. Christensen evaluated new and improved protein sources for use in dairy
rations, including rapeseed meal, canola meal, peas, and flax meal. He studied
alternative forages, forage processing and the effect of physical form of
forage, and the use of forages in dairy ration formulation.
In the mid-seventies, Dr. Christensen was one of the first to appreciate the
extent and economic impact of trace mineral deficiencies in cattle in western
Canada. Trace mineral supplementation is now widespread, primarily as the result
of a ten-year research program led by Dr. Christensen.
In the 1980s and 90s the dehydrated alfalfa industry in western Canada
developed markets and expanded production based on Dr. Christensen’s research
and recommendations on the use of dehydrated alfalfa in dairy rations. More
recently, Dr. Christensen has been very active in the development of new
high-value dairy feedstuffs based on Saskatchewan feed commodities such as
vegetable oils, flax, canola and peas for use on Canadian farms and for export.
Dr. Christensen always recognized the value of new technologies and new
approaches, and he was one of the first scientists to use the Canadian Light
Source Synchrotron to study protein, fiber and mineral metabolism. Dr.
Christensen is also much involved in applied management and economics of dairy
farms. Recently he developed a Cost of Production computer program for on-farm
evaluation and consultation on aspects of dairy enterprise economic management.
Dr. Christensen served the agriculture sectors on numerous boards as a member
and in advisory capacities, including the Saskatchewan Dairy Association,
Saskatchewan Livestock Association, Saskatchewan Advisory Committee on Animal
Production, Prairie Feed Resource Centre Inc. and the Canadian Society of Animal
Science. He continues to be active as member of the Saskatchewan Milk Control
Board.
During his career Dr. Christensen supervised over 50 graduate students,
published over 150 scientific journal articles and presented 44 major invited
papers at national and international scientific conferences. Furthermore, he
presented over 200 invited lectures at institutions all over the world. Dr.
Christensen has taught nutrition and dairy management to thousands of students,
including undergraduate, graduate, vocational and veterinary students, at the
University of Saskatchewan. He has also provided many extension talks and
workshops throughout western Canada and he was the driving force behind the
successful recent offering of the new dairy management course for Hutterite
brethren, recently expanded to serve the broader dairy industry. Dr. Christensen
was responsible for the management of the Dairy Research Unit and its successful
Greenbrae Dairy Research Herd.
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