1 / 25

Introduction To Animal Agriculture

Introduction To Animal Agriculture. Importance of Domesticated Animals. Animal domestication Animal/human relationship What do animals provide? What do humans provide?. Importance of Domesticated Animals. Every country in the world uses domestic livestock as a source of: Food

robinj
Télécharger la présentation

Introduction To Animal Agriculture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction To Animal Agriculture

  2. Importance of Domesticated Animals • Animal domestication • Animal/human relationship • What do animals provide? • What do humans provide?

  3. Importance of Domesticated Animals • Every country in the world uses domestic livestock as a source of: • Food • by-products used for: • consumer goods and animal feeds • Draft power • Manure for fuel and fertilizer

  4. Domesticated Animals

  5. Food Selection vs Food Supply • What determines how much animal protein a population consumes? • Animal protein availability is closely related to the economic status of the people and their agricultural technology • This is true: • When discussing countries • When discussing populations within country • Developing regions (SE Asia, Africa, etc) diets are primarily of plant origin

  6. Food Selection vs Food Supply • Per capita calorie and protein supply • An index of food availability • Large differences exist between • developed countries • developing countries

  7. Trends Related To Percentage of The Population Involved in Agriculture • Countries with a small percentage of their population involved in agriculture: • Farm mechanization allows: • Increased food production • Production of goods and services Thus increasing the standard of living in the country

  8. U.S. Agricultural Production • Agricultural productivity doubled from 1820 to 1920 • 100 years • 1920 to 1950 it doubled again • 30 years • 1950-1965 it doubled again • 15 years • 1965-1975 it doubled again • 10 years • After World War II • Productivity increased 5 fold in only 30 years • Abundant production of feed grains • Increased livestock production • Lower cost of animal products for the human population

  9. U.S. Food Expenditures • In the U.S.: • Releasing people from producing their own food has allowed them to increase their per capita income • U.S. consumers allocate a smaller percentage of their disposable income to food than do people in other countries • Has food prices inflated at the same rate as most other goods and services? What does the mean to the US Rancher & Farmer?

  10. Importance of Meat as a Food Source • Amino Acid pattern • Amino acids • A, B, C analogy • Scenario 1 • 100 A, 100 B, 100 C • Scenario 2 • 100 A, 50 B, 25 C • Pattern of amino acids in meat more closely resembles that of human muscle than does the pattern in plant protein • Vitamin B12

  11. Human/Animal Food Competition • World Agricultural land • About 2/3 is pasture or rangeland • 60% of this land is not suitable for row cropping • This pasture can be used to grow forages that can be consumed by ruminants • Convert to human usable, high quality protein • US Agricultural land • 44% of total land area used for grazing • Only supports 40% of cattle population • Where are the remainder • Could support much more if managed intensively • Ruminants make use of forages that would otherwise be useless to make high quality animal protein for human consumption

  12. Human/Animal Food Competition • World Population Continues to Increase • Many are concerned about animal/human food competition • More acres of cropland are required to feed each person when diets high in animal products are consumed • The debate over this issue will only increase Figure 1.6 Past, present, and projected world population. Source: U.S. Census Bureau.

  13. Increased Efficiency • Efficiency • Ability to convert input to product • What led to the increases • Research • Current trends are to decrease government spending on research

  14. What Other Contributions Do Animals Make to Society • Products • Wool, mohair, hides, etc. • Synthetics have decreased demand • Animal waste used as fertilizers • $1 billion per year in value • Tallow • Gelatin

  15. What Other Contributions Do Animals Make to Society • Draft Power • In developing countries, animals provide virtually all of the power for agriculture • 20% of the worlds population depend on animals to move goods • Developing countries • 52% of draft power from animals • 26% from humans

  16. What Other Contributions Do Animals Make to Society • Recreation

More Related