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Theriogenology > Puberty > Flashcards

Puberty Flashcards

1
Q

Female becomes sexually mature and able to reproduce

A

Puberty

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2
Q

T/F Puberty precedes the development of physical maturity

A

T

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3
Q

At wage age does pygmy goats reach puberty

A

3 months

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4
Q

Time mares reach the age of puberty

A

1-2 years

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5
Q

Time cows reach the age of puberty

A

7-18 months

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6
Q

Time ewes reach the age of puberty

A

6-15 months

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7
Q

Time doe or nanny goat reach the age of puberty

A

4-8 months

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8
Q

Time sows reach the age of puberty

A

6-8 months

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9
Q

Time bitch reach the age of puberty

A

6-20 months

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10
Q

Time queen cat reach the age of puberty

A

7-12 months

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11
Q

The initiation of puberty is a function of

A

age & maturity

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12
Q

Onset of puberty is signaled by

A

1st estrous or 1st ovulation

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13
Q

At what stage does cows ovulate?

A

Metestrus

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14
Q

Non seasonal polycyclic animals

A

cow and sow

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15
Q

Seasonal polycyclic animals

A

mare
ewe
doe/nanny
cat

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16
Q

T/F Domestic animals experience menopause

A

False

17
Q

T/F Ewes are short day breeders

A

True

18
Q

T/F cats are interrupted by sexual quiescence

A

True

19
Q

Seasonally Monocyclic animal

A

Bitch

20
Q

What causes the changes during puberty?

A
  • production of female gametes
  • synthesis of hormones
21
Q

Pituitary gland produces what hormone?

A

Luteinizing Hormone

22
Q

Theca Cells produce what hormone?

A

progesterone

23
Q

Granulosa cells produce what hormone?

A

Estrogen

24
Q

Puberty onset relies on the secretion of o__ o__

A

ovarian oestradiol

25
Q

Puberty in males occurs as a result of a decrease in hypothalamic sensitivity to __ and ___

A

E2 and Testosterone

26
Q

Presence of ___ in semen = puberty

A

spermatozoa

27
Q

This hormone influences the release of LH, FSH, & Prolactin

A

Melatonin

28
Q

Source of melatonin - gland

A

Pineal gland

29
Q

T/F Melatonin is responsive to the amount of daylight

A

True

30
Q

This breed is capable of out oof onset breeding

A

Dorset breed

31
Q

This hormone influences the release of GnRH

A

Kisspeptin

32
Q

External factors affecting puberty (4)

A
  1. Nutrition
  2. Proximity of the male
  3. Climate
  4. Disease
33
Q

This is done in sows to induce hyperovulation

A

Flushing

34
Q

___ is secreted by white fat cells

A

Leptin

Theriogenology (3 decks)

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