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ZOCT 11 Midterm > Puberty and Estrous Cycle > Flashcards

Puberty and Estrous Cycle Flashcards

1
Q

Stage of maturation

A

Puberty

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2
Q

Male’s puberty

A

Desire to mate and ability to produce sperm

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3
Q

Female’s puberty

A

Production of ova by follicles , development of the reproductive tract

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4
Q

Capable of breeding at any time after reaching puberty

A

Male animals

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5
Q

Receptive to breeding only during specific period called ____________

A

Estrus or heat

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6
Q

Age puberty:
4-8 months
5-9 months
10-12 months
5-8 months
6-12 months

A

Swine
Ewe
Horse
Rabbit
Cattle

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7
Q

Period during which the female will accept the male for mating

A

Estrus

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8
Q

Each interval is called_____________

A

Estrous cycle

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9
Q

Three phases of estrous cycle

A

Proestrus
Estrus
Diestrus

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10
Q

Phase where follicle matures do release the egg

A

Proestrus

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11
Q

Phase where sexually receptive to male for mating

A

Estrus Phase

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12
Q

Phase where reproductive tract become less active until the cycle begins again with proestrus

A

Diestrus Phase

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13
Q

Only one estrus in breeding season
Ex: dog

A

Monoestrus

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14
Q

Estrus more than once breeding season
Ex: cattle, swine, sheep, horses, and rabbits

A

Polyestrous

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15
Q

Not cycling period, ewe during the fall and mare in winter

A

Anestrus

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16
Q

Estrous cycle and Estrus of the following:
Cattle
Swine
Horse
Sheep
Rabbit
Dog

A

Estrous cycle Estrus
21 days - 18 hours
21 days - 3 days
21 days - 5 days
16 days - 30 hours
15 days - not well defined
Not well defined - 9 days

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17
Q

Signs of estrus in bovine

A

Standing and mounting activity
Chin resting and trailing activity
String of clear mucus being discharge

18
Q

Sign of estrus in sheep

A

•Majority not show signs of heat
•Accepts the ram and submit to mounting
• Frequent urination
• swollen vulva, inflamed and pinkish in color

19
Q

Goat sign of estrus

A

Bleating
Mucous discharge from the vulva
Nervousness
Decrease milk yield
Frequent urination

20
Q

Sign of estrus in Swine

A

Standing heat- “back pressure test”
Red, swollen vulva
Increased nervous activity
Occasionally grunting
Desire to seek boar
Decrease in appetite

21
Q

Horse sign of estrus

A

Raised tail
Relaxation of vulva
Frequent urination
Teasing of other mares

22
Q

Three factors in first time breeding

A

Physical size
Age
Breed

23
Q

6 Causes of anestrus

A

Pregnancy
Season
Nutrition
Stress
Pathology
Presence of offspring

24
Q

Means imposing of pregnancy on an existing pregnancy, estrus during pregnancy

A

Superfetation

25
Q

Estrus in swine resumes in ___________ after the piglets are weaned

A

3-5 days

26
Q

Mares estrus is _____________ after foaling

A

5-10 days

27
Q

Cow post partum estrus

A

40-80 days

28
Q

Seasonal breeders no tendency of early postpartum heat after weaning

A

Bitch and Cat

29
Q

Not breed immediately

A

Sheep

30
Q

Average time relationship among reproductive events

A

Ovulation

31
Q

Transport of ovum during ovulation to the oviduct

A
  1. Movement of fimbria
  2. Contraction of ovidictal smooth muscles
  3. Ciliary movement oviduct lining epithelium
32
Q

Types of Ovulators/Ovulation

A
  1. Spontaneous Ovulation
  2. Spontaneous Ovulation with mating
  3. Reflex or Induced Ovulation
33
Q

Automatic LH surge, ovulation, form functional CL that exists for definite period.
Ex: ruminants, sow, dog, primates mare

A

Spontaneous Ovulation

34
Q

LH surge, ovulation, form functional CL only occurs when mating happens
Ex: rat, mouse

A

Spontaneous Ovulation with mating

35
Q

Needs mating before ovulation occurs and CL formation absence of mating leads to follicular regression
Ex: rabbit, cat, ferret camel

A

Reflex or Induced Ovulation

36
Q

Retain some neural control of ovulation

A

Spontaneous Ovulators

37
Q

Induced Ovulators, single copulation- only works 50% of the time. Multiple copulations- higher LH

A

Cats

38
Q

Best time to breed cattle

A

AM-PM rule, repeat after 6hrs.

39
Q

Best time to breed horse

A

After 3 days

40
Q

Best time to breed swine

A

Absent of pregnancy

41
Q

Best time to breed goat

A

AM-PM rule

ZOCT 11 Midterm (8 decks)

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