Animal agriculture as science
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Animal Agriculture as Science. The Science of Animal Agriculture. Land Grant and other events. 1862- President Lincoln established the United States Department of Agriculture. 1872- Hatch Act establishment of experiment stations.

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Animal Agriculture as Science

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Animal agriculture as science

Animal Agriculture as Science

The Science of Animal Agriculture


Land grant and other events

Land Grant and other events

  • 1862- President Lincoln established the United States Department of Agriculture.

  • 1872- Hatch Act establishment of experiment stations.

  • 1962- Morrill Act provided public land and funds for establishing universities to teach practical methods of manufacturing and producing food and fiber.


Land grant con t

Land Grant Con’t

  • 1914 Smith-Lever Act set up cooperative extension service.

  • 1917 Smith-Hughes Act established Vocational Agriculture in public high schools.


The scientific method requires several steps

The Scientific Method requires several steps

  • Recognize a problem

  • Develop hypothesis

  • design an experiment

  • collect data

  • analyze data

  • draw conclusions

  • make recommendations


Benefits of research in animal science

Benefits of Research in Animal Science

  • Food increase amount

  • Relatively low prices for food


Advancements made in agriculture since 1925

Advancements made in Agriculture since 1925

  • Beef cattle live weight marketed per breeding female increased from 220 pounds to 482 pounds.

  • Sheep live weight marketed per breeding female increased from 60 to 130 pounds.

  • Milk marketed per dairy cow increased from 4189 to 10500 pounds. An increased of 2 1/2 times the amount of milk as in 1925.


Some more advances made

Some More Advances Made

  • Swine live weight marketed per breeding female increased from 160 to 285 pounds. Time to produce a 220 pound hog has been reduced from 170-157 days.

  • The weight of marketed turkeys increased from 13.0 to 18.4 pounds.

  • Broilers can reach market weight at 7 ½ weeks, down from 15 weeks. Amount of food needed to reach market weight was cut from 4 pounds to 2 pounds.


Some more advances made1

Some more advances made

  • Production per laying hen from increased from 112 to 232 eggs.


Revolutionized animal agriculture

Revolutionized Animal Agriculture

  • Animal Immunization

  • Refrigeration

  • Artificial Insemination

  • Embro Transfer

  • Use of Computers


Ways livestock research has helped humans

Ways Livestock Research has Helped Humans

  • Cortisone- relieves the suffering of arthritis made from the gallbladder of cattle

  • Insulin- use for diabetics derived from hogs

  • Heart Valves- pig heart valves are superior to mechanical valves because they do not accumulate as much residue.


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