During the early 1800s British Admiralty ordered what food product be supplied to the navy ships to prevent scurvy?
Lime juice
T/F: The omasum is sometimes referred to as the Butcher's Bible
True
T/F: Protozoa make up the largest proportion of microbes
False
Cloaca literally means...
Common sewer
Which livestock animal has salivary amylase?
Pigs
T/F: William Beaumont confirmed that stomach growling is due to muscle contractions (not tigers in the belly)
True
T/F: The quality of hay is inversely proportional to age
True
Explain why the Van Soest Method is better at predicting animal response in contrast to the crude fiber and NFE portions of Proximate Analysis
Correct Van soest includes the characterization of specific types of fiber (hemicellusose, cellulose, and lignin). The greater the content of NDF, which includes all three, the less the quantity of voluntary roughage intake. The greater the content of ADF, which includes cellulose and lignin, the less the roughage digestibility.
Proximate analysis does not provide infomration allowing us to make those detailed predictions when it comes to the digestibility and intake of carbs and fibers.
Crude fiber quantifies what nutrient?
Fibrous carbs
Dry matter quantifies what nutrient?
Water
Crude protein quantifies what nutrient?
Protein
NFE quantifies what nutrient?
Soluble carbs
Ash quantifies what nutrient?
Minerals
Ether Extract quantifies what nutrient?
Fat
List the four "R's" of rumination
Regurgitation, remastication, resalivation, rewsallowing
T/F: The honeycomb is another name for the rumen
False
T/F: lignin is completely digested by ruminants
False
If a feedstuff contains 6.4% Nitrogen, how much crude protein would it contain?
40% (N x 6.25)
T/F: Pastures have a high percentage of native grass
False
T/F: A dietary essential nutrient can be synthesized in the body in correct amounts
False
Crude protein doesn't actually measure protein, it measures...
Nitrogen
To calculate protein, multiply nitrogen by??
6.25
BLANK density particles will float on the rumen fluid and form a BLANK layer. Mastication will BLANK density, and allow the particles to settle to the BLANK of the rumen
Low, mat, increase, bottom
Fiber content for roughage
18% crude fiber
Examples of a roughage
Alfalfa haylage, corn silage
Example of an energy concentrate
cereal grains, fruits, nuts, starches
Protein content in a protein concentrate
20% crude protein
Example of a protein concentrate
SBM, distiller's grains
Examples of a mineral supplement
Sodium chloride, limestone
Example of a vitamin supplement
Wheat germ oil
Example of a non-nutritive supplement
Ionophore, mecadox
A high fiber diet decreases and increases which VFAs?
Propionate, acetate
List the acceptable ways to conduct a dry matter analysis
Freeze drying, forced air oven, microwave
Antoine Lavoisier developed what technology?
Calorimeter
Including high levels of Readily Available Carbs in the diet increases and decreases what VFA's?
Propionate, acetate
T/F: If ADF is low, digestibility is low
False
A BLANK is a chemical element required for life
Nutrient
Name a grass with high protein content
Alfalfa hay
T/F: when moisture is high during harvest, more dry matter is lost during harvest than storage
False
T/F: NIR has to be calibrated based on wet-chemistry analysis
True
T/F: ADL will determine the lignin content in a forage
True
To be considered a protein concentrate, a feedstuff must contain at least what percentage crude protein?
20%
T/F: The first glandular portion of the chicken GIT is the ventriculus
F (It's the proventriculus)
T/F: It would be more common to lose dry matter due to leaf shatter in a silage than in a legume hay
False
A BLANK is the daily supply of feed to an animal
Ration
A BLANK is the mixture of feedstuffs used to supply nutrients
Diet
Sugars and starches are predominantly found in which cellular portion of the plant?
Within the cell contents
Rabbits have a unique adaptation in that they consume their own feces. What is the adaptation, and why?
It is called coprophagia, and it is done because as a hindgut fermenter, there are proteins and vitamins synthesized after the stomach that is expelled as waste, and in rabbits it is in the wetter caecotrophs (one of two types of poop). They eat it to recycle and take advantage of the nutrients that would otherwise be lost.
T/F: Lignin is a carb
False
To be considered a roughage, a feedstuff must contain more than what percentage crude fiber?
18%
Name a grass with low protein content
Bermuda hay
T/F: Acidosis is a result of an decrease in growth rate of typical rumen bacteria and an increase in bacteria like S. bovid and lactobacillus.
True
Horses lack this organ responsible fore secreting bile
Gall bladder
T/F: The first glandular portion of the ruminant GIT is the abomasum
True
T/F: Most microbes in the rumen require oxygen
False
What are the major components to make silage?
Sugar, moisture, bacteria, anaerobic environment
The three types of microbes found in the rumen are
Bacteria, protozoa, fungi
T/F: If NDF is high, voluntary feed intake will likely be low
True