2022 NATIONAL FFA DAIRY CATTLE EVENT

MULTIPLE CHOICE

1. Consequences of inbreeding in dairy cattle are:____________________.
A. Decreased milk production
B. Decreased reproductive performance
C. Increased calf mortality
D. All of the above.
ANS: D

2. What are the two most common minerals used in footbaths on dairy farms that are actively involved in the formation of hard keratin in hooves?
A. Copper and Zinc
B. Copper and Biotin
C. Zinc and Iodine
D. Zinc and Calcium
ANS: A

3. According to the PDCA Cow Unified Scorecard, which of the following is NOT a
category on the scorecard?
A. Frame 15 pts
B. Udder 40 pts
C. Dairy Character 25 points
D. Feet and Legs 20 pts
ANS:  C

4. One of your recently fresh cows is ill. She has been receiving a high grain, low roughage diet. The consistency of the small amount of manure she produces is "putty-like". Your veterinarian detects a "pinging" sound when using his stethoscope. What is the most likely diagnosis?
A. Ketosis
B. Milk Fever
C. Grass Tetany
D. Left Displaced Abomasum
ANS: D

5. Stephen Babcock was responsible for developing the Babcock Test in 1890 to detect what in milk?
A. SCC
B. Protein
C. White blood cells
D. Milk fat content
ANS: D

6. The USDA recently announced their Climate-Smart Agriculture and Forestry Partnership Initiative to fund $1 billion in climate-smart practices from the CCC. What does CCC stand for?
A. Climate Clean Corporation
B. Climate Central Committee
C. Climate Commodity Corporation
D. Commodity Credit Corporation.
ANS: D

7. What is a factor that influences the amount of water consumed by dairy cattle?
A. Calving ease
B. Udder cleft
C. Water temperature
D. Estrus
ANS: C

8. Your milk hauler has just completed picking up milk from your farm and the bulk tank is now empty. How often should the bulk tank be cleaned and disinfected?
A. Every day
B. Every time it is emptied
C. Twice a day
D. After every milking
ANS: B

9. The United State Department of Agriculture's Census of Agriculture started in 1840 and is taken every 5 years. When did the most recent census happen?
A. 2022
B. 2021
C. 2020
D. 2019
ANS: A

10. Which of the following factors can cause variation in conception rates on a dairy farm?
A. Heat Detection
B. Cow health
C. Semen handling
D. All are factors that cause variation in conception rates.
ANS: D

11. One of the common steps of preparing a cow to milk is fore-stripping because it helps to release oxytocin and aids in the detection of what type of mastitis?
A. All forms of mastitis
B. Clinical
C. Sub-clinical
D. Mycoplasma
ANS: B

12. It is your job on the farm to mix the milk replacer to feed the calves. Temperature is a critical component of mixing it properly. How should you check to make sure it has been mixed at the proper temperature?
A. Feel
B. Brix-Refractometer
C. Colostremeter
D. Thermometer
ANS: D

13. The National Animal Heath Monitoring System surveyed dairy farmers to determine what the most common criteria used for weaning a calf was. The results found which of the following criteria to be most common
A. Weight
B. Height
C. Age
D. Outside Temperature
ANS: C

14. The temperature outside in which a cow can maintain their own core body temperature without having to exert any extra effort to regulate either their heat loss or heat gain is called what
A. Photoperiod
B. Respiration
C. Estrus zone
D. Thermoneutral zone
ANS: D

15. When reading bull proofs to select the best bull to use on your dairy heifers. PTA is listed on the proof. What does the acronym PTA stand for?
A. Probable True Ability
B. Productive Transmitting Ability
C. Production True Ability
D. Predicted Transmitting Ability.
ANS: D

16. A DHIA milk production record may be terminated if what has happened to the cow?
A. Died
B. Sold at the sale barn as a cull cow
C. Aborted
D. All of the above 
ANS: D

17. After reviewing your recent breeding history for the past month, you contact your nutritionist because you have identified the need to improve conception rates in your herd. She suggests you add what to your rations to improve conception rates because of larger ovarian follicles capable of producing more estrogen, larger corpus luteum and a decrease in embryonic loss?
A. Fats
B. Carbohydrates
C. Vitamins
D. Minerals
ANS: A

18. An example of a Class I use for milk would be to make__________________________
A. Hard cheese
B. Ice cream
C. Chocolate Milk
D. Dried milk powder
ANS: C

19. If the heat detection rate is 40% and the conception rate is 20%, what is the
pregnancy rate?
A. 15%
B. 20%
C. 60%
D. 8%
ANS: D

20. In U.S. dairy herds the number 1 reason for culling dairy cows is?
A. Low milk production
B. Lameness
C. Mastitis
D. Reproductive failure
ANS: D

21. Which compartment of the ruminant stomach main function is the dehydration
of partially digested feed?
A. Reticulum
B. Omasum
C. Rumen
D. Abomasum
ANS: B

22. Which of the following dairy breeds originated from a British Channel Island?
A. Ayrshire
B. Brown Swiss
C. Guernsey
D. Holstein
ANS: C

23. Gestation length in dairy cattle can vary due to which of the following factors?
A. Age of the cow
B. Breed of the cow
C. Season of the year
D. All of the above
ANS: D

24. During a dairy farm visit with your FFA advisor, the dairy farmer asks you what might be wrong with his pre-weaned calves. He provides the following information for you from calves experiencing problems: black feces that looks like engine oil, loose stools, and a few calves have died as a result. Based on these
symptoms and signs, you suspect which issue to be causing the problem?
A. Abomasal ulcers
B. Ketosis
C. Displaced abomasum
D. Feed Refusal
ANS: A

25. As an A.I. sales representative, a dairy producer asks you to help select bulls to improve his future heifers to have the best feet and legs possible. You recommend which of the following bulls to help achieve this goal:
A. Lionel FLC -0.24
B. Ethics FI 2.9
C. Coffee FLC 1.25
D. Babcok REL 90
ANS: C

26. The local veterinary has invited you to do a herd visit with him to determine why there is an increase in cows not getting bred each month. You are asked to observe the breeding preparation and procedures. The A.I. Technician removes the straws of semen from the tank and lets them thaw in an 85 degree water bath. After the straws have been in the water bath for 15 seconds, the technician loads the breeding gun to service the cows. You suspect the reason why the cows are not getting bred is because:
A. The water bath is not warm enough to thaw the semen
B. The semen straws are not staying in the water bath long enough to thaw
C. The A.I. Technician needs to be retrained on proper thawing procedures
D. All of the above 
ANS: D

27. The local veterinary has invited you to do a herd visit with him to determine why there is an increase in cows not getting bred each month. You are asked to observe the breeding preparation and procedures. The A.I. Technician removes the straws of semen from the tank and lets them thaw in an 85 degree water bath. After the straws have been in the water bath for 15 seconds, the technician loads the breeding gun to service the cows. To help improve conception, what is the recommended minimum length of time frozen semen should be thawed in a warm water bath to maximize the number of motile sperm?
A. 15 seconds
B. 20 seconds
C. 30 seconds
D. 40 seconds
ANS: D

28. BioPRYN blood test used to determine what in dairy catte?
A. Pregnancy
B. Nitrate toxicity
C. Mastitis
D. Dystocia
ANS: A

29. It is time to load your cows to bring them to come home to calve. To be successful in moving the cows you make sure to be mindful of the area where the cows do not want any foreign objects entering. This area is commonly known as?
A. Blind spot
B. Flight zone
C. Comfort zone
D. Point of balance
ANS: B

30. Which of the following is NOT considered a macromineral?
A. Phosphorus
B. Potassium
C. Sodium
D. Iodine
ANS: D

31. What is a more common name for erythrocytes?
A. Red blood cells
B. White blood cells
C. Leukocytes
D. Somatic Cells
ANS: A

32. Which of the following is the name of the organization that is charged with evaluating genetic traits of dairy cattle?
A. World Dairy Expo
B. Animal Improvement Programs Laboratory
C. Dairy Business Association
D. Dairy Herd Improvement Association
ANS: B

33. What is the name of the hormone produced by the pituitary that is known as the milk formation hormone?
A. Prolactin
B. Progesterone
C. Follicle Stimulating Hormone
D. Oxytocin
ANS: A

34. The following information is listed concerning a cow: 365 3X 44,828 3.8 1703 3.0 1344
Which of the following is not correct.
A. 365-day lactation
B. Milked two times per day
C. Milk contained 3.8 % milk fat
D. Milk contained 3.0% protein
ANS: B

35. What reproductive hormone tends to be high in lactating, pregnant cows?
A. Oxytocin
B. Progesterone
C. Prostaglandin
D. Relaxin
ANS: B

36. If the MUN level is considered high, which nutrient is likely to be in excess?
A. Fats
B. Carbohydrates
C. Vitamins
D. Protein.
ANS: D

37. What metabolic disorder is caused by a deficiency of blood calcium related to an imbalance of calcium, phosphorus, and Vitamin D?
A. Parturient paresis
B. Ketosis
C. Grass Tetany
D. Fatty Liver
ANS: A

38. Recently your cows have been experiencing less production, lower butterfat, and sick cows that never seem to recover. What could be the cause of these symptoms?
A. Ketosis
B. Milk Fever
C. Johne's
D. Rumen Acidosis.
ANS: D

39. Which condition is a result of the fetal membranes remaining within the uterus for an extended period of time after calving?
A. Retained Placenta
B. Involution
C. Separation of tissues
D. Metritis,
ANS: A

40. What is considered the universal standard criteria for breeding dairy heifers?
A. Body weight
B. Age
C. Height at the withers
D. Rump Width
ANS: A