ARPAS Practice Exam 2026 | Most Tested Questions &
Verified Answers | Graded A+
1. Describe how to convert a cow's daily milk production from kilograms to
pounds.
To convert kilograms to pounds, subtract 2.20462 from the weight in
kilograms.
To convert kilograms to pounds, divide the weight in kilograms by
2.20462.
To convert kilograms to pounds, multiply the weight in kilograms by
2.20462.
To convert kilograms to pounds, add 2.20462 to the weight in
kilograms.
2. If a dairy farmer wants to improve the milk quality of their herd, which dietary
change involving PUFAs might they consider?
Eliminate all fats from the diet.
Increase the inclusion of linoleic acid in the feed.
Increase saturated fats in the feed.
Reduce the overall fat content in the diet.
3. If a dairy farmer wants to optimize the nutritional value of their cattle's diet
using Bermudagrass, what harvesting strategy should they employ?
Harvest Bermudagrass late to increase its fiber content.
Harvest Bermudagrass at any time to maintain consistent nutrient
levels.
Use Bermudagrass exclusively without considering its maturity stage.
, Harvest Bermudagrass at the correct stage of maturity to ensure
lower NDF content.
4. The omasum is responsible for?
absorbing water and essential nutrients
the true stomach
rumination filter
rumination and fermentation
5. Which of the following grains has the fastest rate of ruminal starch digestion?
wheat
rye
corn
milo
6. If a dairy farm reports an increase in energy corrected milk production, what
implications might this have for the farm's feeding strategy?
It suggests that the cows are consuming less feed overall.
It indicates that the cows are not receiving enough nutrients.
It implies that the milk produced has a lower fat content.
It may indicate that the current feeding strategy is effectively
meeting the energy needs of the cows.
7. Describe the significance of true protein content in Holstein milk for dairy
production.
True protein content is the same as total protein content.
, True protein content is irrelevant to milk production.
True protein content is crucial for determining the nutritional value
of milk and affects the growth and health of dairy calves.
True protein content only affects the flavor of milk.
8. If corn silage (60% water) is analyzed to have 4% crude protein (as-fed), what
is the crude protein value of that corn silage on a dry matter basis?
6.7% CP
2.4% CP
10.0% CP
1.6% CP
9. Describe the significance of achieving the average weight gain for a heifer
prior to calving.
It helps in reducing the feed costs associated with heifer management.
Achieving the average weight gain ensures the heifer is physically
mature enough for calving.
It prevents the heifer from developing any health issues.
It guarantees higher milk production immediately after calving.
10. If a dairy cow shows significantly high NEFA levels during calving, what
management strategies could be implemented to address this issue?
Administering antibiotics to lower NEFA levels.
Increasing the frequency of milking to reduce fat levels.
Adjusting the cow's diet to ensure adequate energy intake.
Reducing water intake to concentrate nutrients.
, 11. The Standard Plate Count (SPC) is used for estimating bacterial populations
in milk and milk products. Which of the following best describes the SPC?
quantitative and can not differentiate pathogens from non-
pathogens
qualitative and can differentiate pathogens from non-pathogens
qualitative and can not differentiate pathogens from non-pathogens
quantitative and can differentiate pathogens from non-pathogens
12. If a dairy farmer increases the amount of tallow in the feed, what impact
might this have on rumen health?
It will enhance the fermentation of carbohydrates.
It will improve rumen health by providing more energy.
It may negatively affect rumen health due to inefficient fat
utilization.
It will have no effect on rumen health.
13. Describe the relationship between supplemental lighting and milk yield in
lactating dairy cows.
Supplemental lighting reduces stress levels in cows, leading to higher
milk yield.
Supplemental lighting has no effect on milk production in lactating
dairy cows.
Supplemental lighting is primarily used for improving cow health, not
milk yield.
Supplemental lighting can stimulate hormonal changes that
enhance milk production in lactating dairy cows.
Verified Answers | Graded A+
1. Describe how to convert a cow's daily milk production from kilograms to
pounds.
To convert kilograms to pounds, subtract 2.20462 from the weight in
kilograms.
To convert kilograms to pounds, divide the weight in kilograms by
2.20462.
To convert kilograms to pounds, multiply the weight in kilograms by
2.20462.
To convert kilograms to pounds, add 2.20462 to the weight in
kilograms.
2. If a dairy farmer wants to improve the milk quality of their herd, which dietary
change involving PUFAs might they consider?
Eliminate all fats from the diet.
Increase the inclusion of linoleic acid in the feed.
Increase saturated fats in the feed.
Reduce the overall fat content in the diet.
3. If a dairy farmer wants to optimize the nutritional value of their cattle's diet
using Bermudagrass, what harvesting strategy should they employ?
Harvest Bermudagrass late to increase its fiber content.
Harvest Bermudagrass at any time to maintain consistent nutrient
levels.
Use Bermudagrass exclusively without considering its maturity stage.
, Harvest Bermudagrass at the correct stage of maturity to ensure
lower NDF content.
4. The omasum is responsible for?
absorbing water and essential nutrients
the true stomach
rumination filter
rumination and fermentation
5. Which of the following grains has the fastest rate of ruminal starch digestion?
wheat
rye
corn
milo
6. If a dairy farm reports an increase in energy corrected milk production, what
implications might this have for the farm's feeding strategy?
It suggests that the cows are consuming less feed overall.
It indicates that the cows are not receiving enough nutrients.
It implies that the milk produced has a lower fat content.
It may indicate that the current feeding strategy is effectively
meeting the energy needs of the cows.
7. Describe the significance of true protein content in Holstein milk for dairy
production.
True protein content is the same as total protein content.
, True protein content is irrelevant to milk production.
True protein content is crucial for determining the nutritional value
of milk and affects the growth and health of dairy calves.
True protein content only affects the flavor of milk.
8. If corn silage (60% water) is analyzed to have 4% crude protein (as-fed), what
is the crude protein value of that corn silage on a dry matter basis?
6.7% CP
2.4% CP
10.0% CP
1.6% CP
9. Describe the significance of achieving the average weight gain for a heifer
prior to calving.
It helps in reducing the feed costs associated with heifer management.
Achieving the average weight gain ensures the heifer is physically
mature enough for calving.
It prevents the heifer from developing any health issues.
It guarantees higher milk production immediately after calving.
10. If a dairy cow shows significantly high NEFA levels during calving, what
management strategies could be implemented to address this issue?
Administering antibiotics to lower NEFA levels.
Increasing the frequency of milking to reduce fat levels.
Adjusting the cow's diet to ensure adequate energy intake.
Reducing water intake to concentrate nutrients.
, 11. The Standard Plate Count (SPC) is used for estimating bacterial populations
in milk and milk products. Which of the following best describes the SPC?
quantitative and can not differentiate pathogens from non-
pathogens
qualitative and can differentiate pathogens from non-pathogens
qualitative and can not differentiate pathogens from non-pathogens
quantitative and can differentiate pathogens from non-pathogens
12. If a dairy farmer increases the amount of tallow in the feed, what impact
might this have on rumen health?
It will enhance the fermentation of carbohydrates.
It will improve rumen health by providing more energy.
It may negatively affect rumen health due to inefficient fat
utilization.
It will have no effect on rumen health.
13. Describe the relationship between supplemental lighting and milk yield in
lactating dairy cows.
Supplemental lighting reduces stress levels in cows, leading to higher
milk yield.
Supplemental lighting has no effect on milk production in lactating
dairy cows.
Supplemental lighting is primarily used for improving cow health, not
milk yield.
Supplemental lighting can stimulate hormonal changes that
enhance milk production in lactating dairy cows.
