Animal Science Exam 4 (THE LAST EXAM BEFORE THE FINAL)

• cows produce milk for how many days a year?

  305 days
• which of the following is not a true statement

  1. heat stress decreases milk production
  2. heat stress is unavoidable
  3. dry cow period is 50-60 days
  4. heifers should obtain puberty by 15 months

  heat stress is unavoidable!
• what all is in total mixed rations (TMR)

  vitamins, minerals, and roughages
• which of the statements is false?

  1. it is not recommended to maintain a bull on your farm
  2. over 80% of dairies use AI
  3. you should move a cow when she is in active labor to a maternity stall
  4. calves are separated from mothers after birth due to low maternal instincts

  you should move a cow when she is in active labor to a maternity stall
• which statement is true?

  1. weaning is around 45-60 days
  2. the best milk is given to the calf
  3. bull calves are kept most often
  4. all farms use antibiotics

  weaning is around 45-60 days
• what is the term that means cows have free access to stall but are free to move around?

  Free-stall
• which statement is false?

  1. Mastitis is a pathogen in the mammary gland
  2. Routine mastitis checks should be performed
  3. Grade A milk must have low bacteria and somatic cell
  4. counts
  5. Pathogens can be transmitted if you drink raw milk

  Mastitis is a pathogen in the mammary gland
• Which statement is false?

  1. feed is the largest single component of the cost
  2. high-quality feed is needed for a good dairy operation
  3. small dairies have an advantage in feed cost
  4. smaller dairies have a hard time competing with large dairies

  small dairies have an advantage in feed cost
• which is not a phase in swine production

  1. suckling
  2. finishing
  3. birth
  4. spay/castration

  spay/castration
• which is not a category in performance information

  1. reproduction
  2. temperament
  3. growth
  4. composition

  temperament
• where is the swine production concentrated?

  corn belt
• which is not a swine production system?

  1. weaning-to-farrowing
  2. farrow-to-weaner
  3. farrow-to-finishing
  4. feeder pig

  weaning-to-farrowing
• which statement is false?

  1. boars should be examined 60 days before being bred
  2. hand and pen mating are options for swine breeding
  3. AI is not commonly used in swine production
  4. cross-fostering helps ensure the most piglets will survive

  AI is not commonly used in swine production
• which is not a process of processing piglets?

  1. clipping needle teeth
  2. ear notching
  3. clipping umbilical cord
  4. all are involved

  all are involved
• true or false: sheep and goat industries are equal in size to other ag industries

  FALSE
• which pair is incorrect?

  1. spanish- meat
  2. alpine-fiber
  3. nubian- dairy

  ALPINE
• true or false: Goats are less likely to climb fences than sheep

  FALSE
• True or False: light horses are smaller and were bred for their looks?

  FALSE
• True or False: There is only one type of colic

  True
• What type of pig is white with erect ears with downward loped tips

  Landrace
• what type of pig is white with drooped ears

  chester white
• what type of pig is black with white points and drooped ears?

  poland china
• what type of pig is black and white spotted with drooped ears

  spotted
• what type of pig is black with a white "belt"

  Hampshire
• what type of pig is black with white points and erect ears?

  Berkshire
• what type of pig is red with drooped ears?

  duroc
• what type of pig is white with erect ears?

  yorkshire
• What gene combination makes a CHESTNUT base color

  ee and A_
• What gene combination makes a BLACK base coat?

  E_ and aa
• What gene combination makes a BAY base coat?

  E_ and A_
• production of milk per cow has been increasing in the last 50 years
• Dairy Cattle characteristics ranked from most important to least important:

  udder, dairy strength, feet & legs, frame
• Factors that determine 305-2X- ME milk production


  times milked per day

  length of lactation

  age at calving

  month of calving

  geographic location

  breed
• True or false:

  No crossbred equals a purebred Holstein in milk production

  TRUE
• True or false: Milk production is not highly influenced by environment.

  FALSE
• True or False: Udder health and milk production areimportant factors affecting productivityin dairy cattle

  TRUE
• What breed of cattle is this?

  • from Netherlands; #1 dairy breed


  Holstein
• From Switzerland; efficient in cheese production

  Brown Swiss
• From Scotland; efficient grazers

  Ayrshire
• From British Channel; high % milk fat, efficient


  Jersey