1998 STATE DAIRY BOWL QUESTIONS

JUNIOR


TRUE OR FALSE

1.    T OR F     If one quarter on a cow is treated with an antibiotic, milk  from the other three quarters can be saved.

FALSE

2.    T OR F     Rumen development in the calf depends largely on the animals diet.

TRUE

 3.    T OR F    Most commonly used farm drugs such as penicillin have no drug residue problems.

FALSE

4.    T OR F     Molasses is sometimes added to keep rations from being dusty.

TRUE

5.    T OR F     PTA$ is an economic index combining the relative value of milk and milk fat.

TRUE

 6.   T OR F     Trigon milking parlors got their name because three (3) people are required to milk.

FALSE


1.  Holstein and Brown Swiss heifers from birth to 24 months of age should have average daily gains of:

     a) 1.3 - 1.5 pounds
     b) 1.8 - 2.0 pounds
     c) 2.2 - 2.5 pounds
     d) 2.8 - 3.0 pounds

     b) 1.8 - 2.0 POUNDS

2.  For DHIA records, lactation length is standardized to:

     a) 365 days
     b) 305 days
     c) 325 days

    b) 305 DAYS

3.  When comparing the fertility of heifers, 1st lactation cows, 2nd lactation cows and aged cows, which are usually
      the most fertile?

     a) heifers
     b) 1st lactation cows
     c) second lactation cows
     d) aged cows

     a) HEIFERS

4.  Which of the following is not an organism generally associated with mastitis?

     a) Staphylococcus aureus
     b) Streptococcus agalactia
     c) Streptococcus uberus
     d) Hemophilus somnus
     e) Escherichia coli
     f) none of the above

     d) HEMOPHILUS SOMNUS

5.  Which of the following two (2) diseases can be prevented by vaccination?

     a) Blackleg in calves
     b) Tuberculosis
     c) Leptospirosis in cattle
     d) Equine infectious anemia (EIA)

     a) AND c) BLACKLEG IN CALVES AND LEPTOSPIROSIS IN CATTLE

6.   Which of the following is not a recommended procedure for making silage in a trench or bunker silo?

     a) chop very dry forage
     b) fill fast
     c)  pack hard
     d) cover

     a) CHOP VERY DRY FORAGE

7.  The quality of a forage is best measured by:

     a) protein content
     b) digestibility

     b)  DIGESTIBILITY

8.  Predicted transmitting ability (PTA) for milk is:

     a) a method of comparing bulls of different breeds
     b) a within breed comparison of a bull's offspring for milk
     c) the increased dollar value of a bull's offspring's milk
     d) or none of the above

     b) A WITHIN BREED COMPARISON OF A BULL'S OFFSPRING FOR MILK

9.  When judging dairy cattle, in the North Carolina State 4-H Dairy Judging Contest, you are given how many minutes
      on a reasons class?

     a) 20
     b) 10
     c) 15

    a) 20

10.  What is the most popular variety of cheese in the United States?

     a) mozzarella
     b) Parmesan
     c) cheddar
     d) Swiss

     c) CHEDDAR


1.  Which management practice will help prevent navel or joint ill in baby calves?

     a) Placing the calf under a hear lamp
     b) Dipping  the navel in 7% tincture of iodine
     c) Letting the calf remain with  its mother for 24 hours

     b) DIPPING THE NAVEL IN 7 % TINCTURE

2.  Two (2) methods are generally used to measure vacuum pump capacity, American Standard and New Zealand
     Standard.  To convert New Zealand Standard to American Standard you multiply it by:

     a) one-half (½)
     b) one (1)
     c) two (2)
     d) four (4)

     a) ONE-HALF (½)

3.  Identical twins in dairy cattle:

     a)Develop from a single fertilized egg
     b) Are genetically identical
     c) May not be identical in certain respects ,such as coat color patterns
     d) All of the above

    d) ALL OF THE ABOVE

4.  Which of the following is not a reason for suspension of a permit to ship Grade A milk?

     a) antibiotics in milk
     b) high bacteria count
     c) low butter fat percentage
     d) high somatic cell count

     c) LOW BUTTERFAT PERCENTAGE

5.  Leucocytes are often found in milk and are called:

     a) red blood cells
     b) somatic cells
     c) alveoli

     b) SOMATIC CELLS

6.  Acidiosis or founder is caused by overfeeding:

     a) calcium
     b) hay
     c) grain

     c) GRAIN

7.  Which of the following (2) two are considered feed additives:

     a) Niacin
     b) yeast culture
     c) corn silage
     d) citrus pulp

     a) NIACIN AND B) YEAST CULTURE

8.  Which of the following can be found in/on a gene?

     a) glucose
     b) chromosomes
     c) lactic acid

     b) CHROMOSOMES

9.  On the Dairy Cow Unified Score Card, how many points are assigned to the category Dairy Character?

     a) 20
     b) 10
     c) 35

    a) 20 POINTS

10.  How much blood must pass through the udder for each gallon of milk  produced?

     a) 40 to 50 gallons
     b) 4 to 5 gallons
     c) 400 to 500 gallons

    c)  400 TO 500 GALLONS


1.  Which of the following is not a primary organism associated with mastitis:

     a) Staphylococcus aureus
     b) Streptococcus agalactia
     c) Streptococcus uberous
     d) Brucella abortus
     e) none of the above

     d) BRUCELLA ABORTUS

 2.  A protein found only in milk is:

     a) albumin
     b) lactose
     c) casein
     d) butterfat

     c)  CASEIN

 3.  Of the following traits:

     a) milk production
     b) fat production
     c) protein percentage
     d) protein production

       which is generally considered to be most highly heritable?

     c) PROTEIN PERCENTAGE

4.  Which of the following is called the milk "let-down" hormone:

     a) adrenaline
     b) progesterone
     c) oxytocin
     d) oxytetracycline

     c) OXYTOCIN

 5.  What is the largest part of a cows stomach?

     a) Abomasum
     b) Rumen
     c) Omasum

     b) RUMEN

 6.  What breed of dairy cow may also be referred to as a Friesian?

     a) Jersey
     b) Milking Shorthorn
     c) Holstein

     c) HOLSTEIN

 7.  What percent of new mastitis infections can be prevented by teat dipping:

     a) 15%
     b) 30%
     c) 50%
     d) 75%

     c) 50%

 8.  The most desirable calving interval for cows in dairy herds is:

     a) 12 - 13 months
     b) 17 - 18 months
     c) 22 - 24 months

     a) 12 - 13 MONTHS

9.  Digestibility of a forage is reported on a feed analysis report and is estimated from:

     a) fiber
     b) weight
     c) color
     d) pH

     a) FIBER

10.  In dairy cattle judging, what are you referring to when you say that this part has a higher and wider attachment?

     a) fore udder
     b) rear udder
     c) tail head

     b)  REAR UDDER


1.  What compound is used to freeze and store semen?

     LIQUID NITROGEN

 2.  Which group of animals on the dairy farm would be most affected by
       heat stress?

     THE HIGHEST PRODUCING COWS

 3.  Name three (3) points a judge looks for when judging a fitting and showmanship contest.

      ANIMAL'S CONDITION, GROOMING, CLIPPING, CLEANLINESS, APPEARANCE OF SHOWPERSON

 4.  What is the approximate age and weight for breeding Holstein heifers?

      FOURTEEN TO FIFTEEN MONTHS, AND 750 TO 850 POUNDS

 5.  What disease is identified by the milk ring test?

      BRUCELLOSIS

 6.  What may happen when a heifer begins producing milk before calving as a result of a calf sucking on her udder?

      THE HEIFER, WHEN FRESHENING, MAY HAVE A BLIND QUARTER

 7. What is the most important nutrient, in pounds consumed, in a dairy cow’s ration?

      WATER

 8. Milk produced by what breed of dairy cow is highest in butterfat?

      JERSEY

 9. Which vitamin is routinely added to milk?

      VITAMIN D

10.  Cottonseed meal is rich in what nutrient?

       PROTEIN


1.  What is the largest single problem in getting cows bred artificially?

       HEAT DETECTION

2.  Name 2 factors for which predicted transmitting abilities are calculated.

      MILK, FAT, PROTEIN, FINAL TYPE SCORE, LINEAR TYPE TRAITS AND CALVING EASE

3.  Name an insect which spreads pinkeye?

      HOUSE FLY, FACE FLY, GNAT

4.  What is the wax-like material that lines the teat canal?

      KERATIN

5.  What term describes when a cow is producing milk?

      LACTATION

6.    If the official placing on a class of cows is 2-1-4-3, with cuts of  3-5-4, what would be the score on a placing
       of 1-2-3-4?

      43

7.  Free martinism is characteristically found in what domestic farm animal?

       CATTLE

8.  What is the proper name for the abnormal condition “twisted stomach”?

       DISPLACED ABOMASUM

9.  Who is credited with perfecting the test for fat content in milk in 1890?

       DR. S.M. BABCOCK

10.  When entering the show ring with your dairy animal, you should move in what direction?

       CLOCKWISE


TRUE OR FALSE

 1.  T orMold growth in corn raises its nutrient value.

  FALSE

 2.  T or F  Day to day variation in somatic cell counts is greater in infected cows that uninfected cows.

TRUE

 3.  T or Because they are organic, acids used to preserve hay are not dangerous.

FALSE

 4.  T or F  The present method of calculating sire summary information takes into account the genetic level of the
                   herd mates.

TRUE

 5.  T or F   During hot weather, one of a cow's major strategies to try to maintain normal body temperature is to
                   consume less feed.

 TRUE

6.  T or F   The size of the vacuum line helps to determine the number of milking machines a milking system can handle.

 TRUE


 1.  How long a dry period is desirable for cows to maintain a high level of production each year?

     a) 30-40 days
     b) 90-100 days
     c) 45-60 days

     c) 45-60 DAYS

 2.  The normal water content of milk is approximately:

     a) 97.5%
     b) 77.5%
     c) 87.5%

     c)  87.5%

 3.  What breed of dairy cattle has the longest gestation period?

     a) Brown Swiss
     b) Guernsey
     c) Jersey
     d) Ayrshire

     b) GUERNSEY

 4.  The ligament that divides the udder into a right side and a left side and provides the main support is?

    a) Lateral Suspensory Ligament
    b) Median Suspensory Ligament
    c) Rear Udder Attachment

    b) MEDIAN SUSPENSORY LIGAMENT

5.  Which of the following is not true concerning silage which was cut too dry and not packed well:

     a) caramelized odor
     b) brown color
     c) decreased protein
     d) digestibility
     e) increased energy digestibility

     e) INCREASED ENERGY DIGESTIBILITY

 6.  What is the minimum amount of calf starter grain mix that a calf should be eating each day before it is weaned?

     a) 4.5 lbs.
     b) 2.5 lbs.
     c) 2.0 lbs.

     c) 2.0 LBS.

 7.  Milk Fever is caused by low blood:

     a) sugar
     b) cholesterol
     c) calcium
     d) fat

     c) CALCIUM

 8.  Semen that is stored frozen in straws should be thawed at:

     a)  35 to 40o F
     b) 95 to 98o F
     c)  112 to 115o F

     b)  95 TO 98o F

 9.  A ration to support 60 lbs of daily milk production should contain an acid detergent fiber level of about

     a) 20%
     b) 40%
     c) 60%

     a) 20%

10.  On the Dairy Cow Unified Score Card, reference to the withers is listed under which main category:

     a) Dairy Character
     b) Body Capacity
     c) General Appearance

     a) DAIRY CHARACTER


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Last modified March, 1998
Department of Animal Science, NCSU