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ASC 408G: Swine > old exam questions: exam 2 > Flashcards

old exam questions: exam 2 Flashcards

1
Q

T/F baby pigs born rear legs first will cause dystocia in sows

A

false

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2
Q

T/F the majority of US swine are bred used frozen extended semen

A

false

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3
Q

T/F swine flu virus has a high mortality rate in mature sows

A

false

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4
Q

T/F gits should be bred on their first cycle

A

false

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5
Q

T/F whipworms migrate in the pigs bloodstream

A

false

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6
Q

T/F for the most accurate heat detection, producers should expose the sow to a female in estrus

A

false

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7
Q

T/F sick pigs isolate themselves from pen mates

A

true

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8
Q

T/F sows increase their body conditon during lactation

A

false

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9
Q

T/F mycotoxins are a type of bacteria

A

false

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10
Q

T/F for best reproductive success gilts should be bred at 230 pounds

A

false

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11
Q

T/F PG600 is effective in synchronizing gilts that have gone through puberty

A

false

for those who havent gone through puberty

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12
Q

how is PG600 administered

A

IM

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13
Q

T/F the timing of insemination is important in order for the sperm to arrive after ovulation occurs in the sow

A

false

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14
Q

T/F pigs with ASF can be successfully treated with antibiotics and electrolytes

A

false

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15
Q

T/F in boars the release of GnRH is stimulated when he is underweight

A

false

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16
Q

a 250 pound market gilt has whipworms, compared to a non-infected gilt the infected gilt will have ________ ADG

A

lower

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17
Q

which pig is most likely to die before weaning

born first
born last

A

born last

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18
Q

during natural service the boar ejaculated into the sows___________

A

cervix

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19
Q

____________ mastitis is the most common on swine farms

A

coliform

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20
Q

which berkshire pig is most likely to die before weaning

born with 2 littermates
born with 18 littermates
no difference

A

no difference

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21
Q

farrowing induction uses what two hormones

A

PGF2-alpha (lutylase)
oxytocin

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22
Q

mammary development and vulva swelling in prepuberal gilts are symptoms of _________

A

zearalenone

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23
Q

the ideal body condition score of a sow at farrowing is

A

3-4

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24
Q

which prepuberal gilt will come into first estrus earliest

exposed to 12 hours of light
exposed to 15 hours of light
exposed to 18 hours of light

A

no difference (range is 10-18)

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25
Q

when the retractor penis muscle is contracted the boars penis is _______ his body

extended out
retained in
doesn’t interact with penis

A

retained in

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26
Q

cyanosis is a symptom of PRRS. what body part experiences cyanosis

A

ears

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27
Q

in a litter, a pig that nursed from a sows __________ teats is heavier at weaning than a pig that nursed from a sows ____________ teats,if all unstated factors are equal

A

anterior
posterior

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28
Q

nodular worm larvae burrow in the ____________ of pigs

A

large intestine

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29
Q

which boar would produce the most sperm

testicle length 7.2 inches
testicle length 9.8 inches
no difference

A

no difference

determined by weight

30
Q

the estrus synchronization method Matrix mimics _________ in a sow

A

progesterone

31
Q

how long is MATRIX administered

A

14 days

32
Q

to complete the lifecycle for toxoplasmosis a _______ is needed

A

cat

33
Q

the seminal vesicles add ________ to the boars ejaculate to aid in moving the sperm through the sows reproductive tract

A

prosaglandins

34
Q

lice are the most common in ____________ months

A

winter

35
Q

the CL on a sows ovary produces ___________

A

progesterone

36
Q

which swine disease is zoonotic

AR
ASF
Erysipelas
Pseudorabis
transmissible gastroenteritis

A

erysipelas

37
Q

which housing type has the most concern regarding pseudorabies transmission

pasture
confinement
deep-bedded

A

pasture (feral pig contact)

38
Q

transmissible gastroenteritis affects the pigs ________

A

small intestine

39
Q

a sow with PRRS can transmit the virus to others via her:
saliva
milk
nasal secretions
urine
all are possible
none are possible

A

all are possible

40
Q

which pig is most at risk of dying from PEDV

5lb nursing pig
25 pound nursey pig
250 pound finishing 450 AI boar

A

5lb nursing pig

41
Q

the tunica dartos is the muscle associated with the boars _________

epididymis
scrotum
sheath
spermatic cord

A

scrotum

42
Q

in confinement swine barns___________ are the most common internal parasite

large roundworms
whipworms
nodular worms

A

large roundworms

43
Q

the ________ layer of the sows uterus responds to the hormone oxytocin

endometrium
mesometrium
myometrium

A

myometrium

44
Q

which boar would produce the most sperm

testicles weigh 3.65 lbs
testicles weigh 2.89 lbs
no difference

A

3.65 lbs

45
Q

most AI boars are collected using a _________

A

dummy sow

46
Q

the most mature sperm is located in the boars __________

epididymis head
epididymis body
epididymis tail

A

epididymis tail

47
Q

which prepuberal gilt will come into first estrus the earliest

exposed to a boar for 15 min/d
exposed to a boar 24 hr/d
no difference

A

15min/day (10-30min range)

48
Q

which boar would produce the most sperm

85 degree barn
65 degree barn
no difference

A

65 degree barn

49
Q

what is NOT a sign of estrus in a mature sow

being ridden by other females
clear mucus discharge from vulva
interior of the vulva red in color
seeking out of the boar
winking of vulva

A

winking of the vulva

50
Q

the boars prepuce stores ________

A

urine

51
Q

which pig is most likely to diet before weaning

boar
gilt
no difference

A

boar

52
Q

in a sows cervix when levels of the hormone ______ are high and the levels of the hormone __________ are low the mucus produced by the cervix is thick forming a cervical plug

A

progesterone
estrogen

53
Q

petunia the pregnant sow is infected with swine flu. Petunia has aborted her pregnancy on day 60 of gestation. What caused her to abort

A

acute disease
fever

54
Q

during insemination the hormone __________ is released by the sow to help propel the sperm through her repro tract

A

oxytocin

55
Q

fertilization of a sows ovum occurs where?

A

ampulla of the oviduct

56
Q

sow lactations diets are __________ in energy. Most sow lactation diets contain a laxative source such as ___________ or ___________ to help sows maintain normal elimination

A

high
beet pulp
epsom salt

57
Q

lactation in sows prevents the release of _________ from the sows hypothalamus

A

GnRH

58
Q

on a 95 degree day the cremaster muscle in the boars ___________is ________ causing the testicles to be _____________ the boars body

A

spermatic cord
relaxed
further from

59
Q

manny the market hos is pale, grinding his teeth and has dark feces. What disease/condition does manny have?

what caused this condition/disease?

A

gastric ulcers

too fine of feed

60
Q

the virus causing porcine epidemic diarrhea affects the villi enterocytes in the pigs _______. The new epithelia that grow are __________ in shape and are unable to absorb ________

A

intestine
cubodial/flat
nutrient

61
Q

the atrophic rhinitis bacteria in found in most swine herds. ___________ and __________ will cause an increase in occurrence/prevelance of AR cases in the herd

A

low humidity
poor ventilation

62
Q

when extending boar semen each dose should contain ___________ sperm/dose. the extended sperm should be stored at __________ degrees and agitated __________ a day

A

2-6 billion
57-64
2x

63
Q

the first portion of a boars ejaculate, the pre-sperm is __________ in color and is not collected as it contains _________. The sperm-rich portion of the boars ejaculate is ______________ in color and is collected into a pre-warmed container.

An average boar will ejaculate _______mL and the ejaculate contains _______ sperm

A

clear
lots of bacteria
milky white/grey
200-400
60-130 billion

64
Q

african swine fever can be transmitted to pigs by ____________ and __________

A

ticks
eating contaminated meat

65
Q

exudative epidermitis infections usually occur when in a pigs life

A

less than 8 weeks

66
Q

when performing AI on a gilt the catheter needs to be angled upwards when inserted into the vagina. why?

A

avoid the bladder

67
Q

a pig with toxoplasmosis may develop cysts in his ________ and _________

A

skeletal muscle
heart

68
Q

the gel fraction of a boars ejaculate is secreted by the _____________

A

bulbourethral gland (cowpers)

69
Q

swine with external parasites experience _______mortality rates. External parasites ______ growth rates and ________ carcass value

A

low
decrease
decrease

70
Q

ferm the finishing pig has a rectal prolapse, her prolapse could be a result of:

1.
2.

A
  1. coughing
  2. cold stress
71
Q

once fertilization occurs the developing embryos must signal their presence to the sow, they do this by secreting the hormone ________. This prevents the sow from releasing the hormone ________ which would trigger the resumption her estrous cycle

A

estrogen
prostaglandin

72
Q

large roundworm larvae penetrate the walls of the ____________ to enter the bloodstream where they first travel to the __________. The scar tissue left behind at this first stop is called ___________. After 3-4 days at their first stop the larvae enter the bloodstream again and travel to the pigs ______ where they spend 4-5 days. The larvae are eventually ______ and __________ by the pig before completing their final journey to become adults

A

intestine
liver
milk spots
lungs
coughed up
re-swallowed

ASC 408G: Swine (37 decks)

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