Exam 2 Test Corrections
8. _Vitamin A fat soluble vitamin found in green leafy forages, but liver and liver
oils and kidneys from fish such as cod and shark are highly concentrated sources
9. _Vitamin E fat soluble vitamin that can be a b
February 12, 2014
1. One of the biggest challenges that livestock producers and nutritionists face is understanding how we
can utilize available natural resources more _ to ensure adequate food supply
produced for worlds population
February 8, 2013
Each Question is worth 2 points unless otherwise indicated.
1. A NUTRIENT is a feed constituent or group of feed constituents that aid in the support
2. Indicate 2 factors that could affect the nutrient req
Feeding: Grower Pigs
High lean growth rate: 350 g/day
Barrow: 0.60% total Lys
Gilt: 0.69% total Lys
Medium lean growth rate: 300 g/day
Barrow: 0.53% total Lys
Gilt: 0.60% total Lys
Feeding: Finisher Pigs
Corn-SBM based diets
Split sex feeding is p
Feed for Livestock
Ration formulation - evolved from an "art to a
Process constantly changing
knowledge of nutrient requirements and feed
Popped and Micronized Grains
Use of dry heat
causes moisture in grain to expand
Ruptures the endosperm
Popping increases starch digestibility in rumen
Produced similar to popping
Feeds for Livestock
Plant materials of one kind or another
provide dietary carbohydrates for
Of primary importance to domestic
Commonly referred to as forages or rougha
Feed Manufacturing and
Feed cost is normally the single largest expense
associated with any animal production operation.
Sheep operations that depend primarily on grazing
of total production costs for
Sheep and Goats
plays a major role in
and well-being of the
feed costs approx. 2/3
of total cost of prod.
Nutrient requirements of
sheep vary with
In practice, feed additives are defined as
feed ingredients of a nonnutritive nature
Improve the efficiency of
Beneficial to the
Beneficial to the
of an animal
of the animal
Forage Harvesting and
: allowing livestock to harvest forage
rangelands; involve little animal or plant management
US may involve rotational grazing, fertilization, range
utilization of p
1) Indicate why feed labeling laws were established.
2)What functions do the American Feed Control Officials play in the
regulation of feed laws?
3)What information must be included on a medicated and nonmedicated
4) In what or
1) What are feed additives?
2) Why are additives used in animal feeding (in other words what would be some of the
benefits of using feed additives)?
3) How are feed additives classified? What is the basis for their classification?
4) Indicate why antibiot
Mineral and Vitamin Supplements
MINERAL AND VITAMIN SUPPLEMENTS
Normally needed by feed formulations to provide additional
minerals & vitamins or adjust them to the proper balance.
Specialized companies commercially prepare premixes,
Rest, No Work/Use, etc.
Pleasure, Trail, etc.
Longer and/or Harder Rides, Light
Ranch Work, etc.
Heavy (Intense) Work: Heavy
Ranch Work, Racing, Polo, etc.
Body Condition Score
Extra horse slides
BCS of 5 to 6
Bone Development Disorders
Improper bone development results in impaired
performance later in life.
Provide adequate and proper minera
Approximately 9.2 million U.S. dairy cows
each produce more than 9,000 kg/year.
Average production in US: 21,345 lb/cow/year
Most of it in dairies that are highly mechanized.
World record: 75,275 pounds in 36
Feeds and Feeding
Grow weaned calves (7-8 months
of age weighing 400-600 lbs.) to
suitable feeder weights (700-900
lbs.) utilizing forage based diets
Spring Calving Herds
Fat soluble vitamins
Water soluble Vitamins
10 Amino Acids know MATT HILL VP
6 classes of nutrients
Classifications of feedstuffs 1-8
0itrogen to %crude protein
Dry matter to as f
1)Poultry rations constitute about _% of the feed annually mixed in the United
2) List the three objectives of fending poultry.
3) Name the three nutrients that might be suspect if the birds have rickets and thin egg
5) Rather than formula
can be defined as any
component of a diet (ration) that serves some useful
Throughout the world a wide variety of feedstuffs is
available for feeding animals.
Depending on what can be grown in a
April 4, 2014
1. Name 4 (of the 8) items that a feed label should include for both medicated and nonmedicated feeds (4 pts).
2. What are two differences on the label requirements between medicated and
nonmedicated feeds? (2 pts)
ANSC 3010; Spring 2015
Due March 25, 2015
1. How many lb's of CP are in 100 lb (as fed) of alfalfa hay that is 88%
18% CP (DM basis)?
2. You submitted a sample of corn to a lab for testing. The results came
the sample wa
1) When should a starter ration start to be fed to a calf?
2) The dietary protein quality in milk replacers can be increased/decreased as the
calf gets older.
3) Young calves are fed like _, since they dont have
a functional rumen.
4) Plant protein source
In the early 1900s, pigs were found on almost
every farm in the U.S.
40 years ago, there were over a million hog farms,
by the turn of the 21st century, less than 100,000
Today, fewer than 70,000 farms produce hogs
Calves and Heifers
What is Colostrum?
First and most important feed given to newborn calf
Dependent on passive transfer
The primary source of nutrients
Also provides essential and irreplaceable
True colostrum obtained from first milki
Quiz and Test Questions
2) What criteria is used to determine if a mineral is classified as a macro or micro
3) Indicate why the micromineral content of a feedstuff changes from region to
5) Supplemental source that provides only Ca is _.
SUPPLEMENTAL PROTEIN SOURCES
Dietary protein, a critical nutrient for animals, is the
primary component associated with a majority of
animal products produced &marketed.
Optimal use is critical,
High Energy Feedstuffs
Classification of Feedstuffs
The International Feed Identification System classifies feedstuffs into
eight general categories.
International Feed Identification Number (IFN)
The first digit indicates the major category
Balance (or Chemical Equilibrium)
Balance is important!
And a concept that can be found in almost every field:
Finance: income and expenditures
Ecology: predators and prey
World philosophy/religion: yin and yang
Physics: action creates equa
Notes Test #3 Anthropology
The Genus Homo
East and south Africa
No direct ancestors
Later Derived Austrlopitha
2.7-.3 Ma Earlier robust
5th Century BC
Environment and culture cause variation
Persians and Egyptians
Difference in hair straight and kinky hair
Variation is normal and necessary
ANSC 3010 Exam 2
March 11, 2016
Full Credit will not be given if you use abbreviations (unless indicated that they are ok). Please spell
out your answers.
1. (3 pts) What are the three systems of grazing management we discussed in class?
2. Of the