ANSC 400 EXAM 1 QUESTIONS WITH VERIFIED ANSWERS
Overall fluid milk consumption in the US is increasing - Answers - false
Whole-milk consumption has increased but yogurt consumption has decreased in the
past years - Answers - true
The 3 States with the highest milk production in the U.S. are (not in a particular order) -
Answers - CA, WI, ID
This country is number 1 in buying U.S. dairy products exports - Answers - Mexico
In 2018, per capita consumption of butter was at the highest level in 50 years. -
Answers - true
Using the Dairy Efficiency Calculator determine the dairy efficiency (DE) of a herd with
80 lb/day of milk, 3.6% milk fat, 3.2% milk protein, and 52 lb/day of dry matter intake. -
Answers - 1.55
For a one-group TMR the DE reported in question 1 is ideal. - Answers - false
Still using the data provided in question 1, the Dairy Milk Components Efficiency
(DMCE) of 10.46 is IDEAL for this herd - Answers - true
NDF is associated with the potential intake of a diet or ingredient. - Answers - false
Temperature Humidity Index (THI) can be calculated using the ambient temperature
and relative humidity. - Answers - true
Metabolizable protein is composed of microbial protein (AA) and RUP (rumen-
undegradable protein). - Answers - true
The 2 most limiting amino acids in dairy cow's diets are: - Answers - Lys and Met
Milk yield increases with increased THI. - Answers - false
Grass tetany is when cows have low levels of which mineral in the blood? - Answers -
Mg
What are the cation minerals that are used when calculating DCAD? - Answers - K and
Na
50% of the fat in milk is derived from ______synthesis in the mammary gland (most of
the 4:0 to 14:0 and about 50% of 16:0) - Answers - de novo
, Dry cows in the close-up period should be fed a diet with a positive DCAD - Answers -
false
What does DCAD stand for? - Answers - Dietary Cation Anion Difference
What are the 2 desirable characteristics of a fat source for dairy cattle? - Answers -
Minimum effects on ruminal fermentation and high digestibility
U.S. per capita fluid milk consumption has increased in the last years. - Answers - false
U.S. per capita cheese consumption has increased in the last years. - Answers - true
Total U.S. milk production has decreased in the last years. - Answers - false
The average size (head per farm) of dairy farm in Illinois has decreased in the last
years. - Answers - false
Less sodium in the diet increases water consumption. - Answers - false
List 2 advantages of dairy farmers in the Midwest - Answers - forages & corn raised (no
check expense), available by- product feeds
List 2 disadvantages of dairy farmers in the Midwest - Answers - cost of land, average
herd size
List and explain 1 factor that can drive dry matter intake UP - Answers - Palatability
(sweet & salty taste)
List and explain 1 factor that can drive dry matter intake DOWN - Answers - sore feet
(disease) , moldy feeds, heat stress(can cause reduction in rumination resulting in less
DMI)
Organic is not a content claim. It does not represent that organic milk is "free" of
something. - Answers - true
Raw milk cannot be sold in retail stores or direct from farms in IL. - Answers - false
List 2 items from the "Guidelines for MAX DMI" that you would like to check when
arriving at Trubisky's farm - Answers - forage quality, feed in front of cows
What does NDFD30 stands for? How is that associated with milk production in dairy
cows - Answers - Neutral Detergent Fiber Digested after 30 hours. This allows us to
determine how a fiber will be digested in the ruminant digestive system.
What does RDP stand for? - Answers - Rumen degradable protein
Overall fluid milk consumption in the US is increasing - Answers - false
Whole-milk consumption has increased but yogurt consumption has decreased in the
past years - Answers - true
The 3 States with the highest milk production in the U.S. are (not in a particular order) -
Answers - CA, WI, ID
This country is number 1 in buying U.S. dairy products exports - Answers - Mexico
In 2018, per capita consumption of butter was at the highest level in 50 years. -
Answers - true
Using the Dairy Efficiency Calculator determine the dairy efficiency (DE) of a herd with
80 lb/day of milk, 3.6% milk fat, 3.2% milk protein, and 52 lb/day of dry matter intake. -
Answers - 1.55
For a one-group TMR the DE reported in question 1 is ideal. - Answers - false
Still using the data provided in question 1, the Dairy Milk Components Efficiency
(DMCE) of 10.46 is IDEAL for this herd - Answers - true
NDF is associated with the potential intake of a diet or ingredient. - Answers - false
Temperature Humidity Index (THI) can be calculated using the ambient temperature
and relative humidity. - Answers - true
Metabolizable protein is composed of microbial protein (AA) and RUP (rumen-
undegradable protein). - Answers - true
The 2 most limiting amino acids in dairy cow's diets are: - Answers - Lys and Met
Milk yield increases with increased THI. - Answers - false
Grass tetany is when cows have low levels of which mineral in the blood? - Answers -
Mg
What are the cation minerals that are used when calculating DCAD? - Answers - K and
Na
50% of the fat in milk is derived from ______synthesis in the mammary gland (most of
the 4:0 to 14:0 and about 50% of 16:0) - Answers - de novo
, Dry cows in the close-up period should be fed a diet with a positive DCAD - Answers -
false
What does DCAD stand for? - Answers - Dietary Cation Anion Difference
What are the 2 desirable characteristics of a fat source for dairy cattle? - Answers -
Minimum effects on ruminal fermentation and high digestibility
U.S. per capita fluid milk consumption has increased in the last years. - Answers - false
U.S. per capita cheese consumption has increased in the last years. - Answers - true
Total U.S. milk production has decreased in the last years. - Answers - false
The average size (head per farm) of dairy farm in Illinois has decreased in the last
years. - Answers - false
Less sodium in the diet increases water consumption. - Answers - false
List 2 advantages of dairy farmers in the Midwest - Answers - forages & corn raised (no
check expense), available by- product feeds
List 2 disadvantages of dairy farmers in the Midwest - Answers - cost of land, average
herd size
List and explain 1 factor that can drive dry matter intake UP - Answers - Palatability
(sweet & salty taste)
List and explain 1 factor that can drive dry matter intake DOWN - Answers - sore feet
(disease) , moldy feeds, heat stress(can cause reduction in rumination resulting in less
DMI)
Organic is not a content claim. It does not represent that organic milk is "free" of
something. - Answers - true
Raw milk cannot be sold in retail stores or direct from farms in IL. - Answers - false
List 2 items from the "Guidelines for MAX DMI" that you would like to check when
arriving at Trubisky's farm - Answers - forage quality, feed in front of cows
What does NDFD30 stands for? How is that associated with milk production in dairy
cows - Answers - Neutral Detergent Fiber Digested after 30 hours. This allows us to
determine how a fiber will be digested in the ruminant digestive system.
What does RDP stand for? - Answers - Rumen degradable protein
