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Animal Science Notes > Male and Female Repro System > Flashcards

Male and Female Repro System Flashcards

1
Q

What is the incubation period for chicken eggs?

A

21 Days

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2
Q

Advances in AI (Artificial insemination) permits livestock producers to use outstanding sites for genetic improvement and to control reproductive diseases in their herds

A

True

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3
Q

The release of the ovum in cows or ova in sows is often referred to as ____

A

Ovulation

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4
Q

The hormone in the female animal that causes the cessation of pregnancy or triggers parturition is ___

A

PGF2A

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5
Q

Only the right ovary is functional in producing an ovum in the avian species because the left ovary atrophies

A

False

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6
Q

The ovum is enclosed in a fluid filled cavity during development. This structure on the ovary is known as the ___

A

Follicle

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7
Q

___ is the hormone secreted by the female reproductive tract that causes sexual excitability in cows, ewes, sows, etc

A

Estrogen

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8
Q

___ is the length of the gestation in the sow

A

114 Days

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9
Q

Fertilization occurs in the oviduct in the female reproductive tract because during estrus conditions in the Fallopian tube are suitable for fertilization to occur

A

True

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10
Q

In the sexually mature gilt or heifer ___ cells are involved in the production of the female secondary sex hormone estrogen

A

Graafian follicle

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11
Q

The hormigone on the female animals that stimulates follicular development is ___

A

FSH

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12
Q

Ovarian functions occur in a cyclic manner following puberty. The period of time when the animal shows signs of sexual receptivity is referred to in reproductive physiology as:

A

Estrus

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13
Q

The groom one that is produce by corpus outrun and functions in preventing estrus during pregnancy is known as:

A

Progesterone

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14
Q

The hormone in the female animal that triggers ovulation the ovum or ova from the ovary is ___

A

LH

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15
Q

Which principal hormones are involved in brining about successful parturition?

A

Prolactin and Oxytocin

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16
Q

The primary organ of the female reproductive system produces ____ and ____, while the primary organ of the male reproductive system produces ____ and ___

A

Ova & estrogen and spermatozoa & testosterone

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17
Q

In the sexually mature boar or bull ___ cells are involved in the generation of spermatozoa

A

Seminiferous Tubules

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18
Q

Factors affecting sperm production are numerous in animal production. Which of the following factors would be considered a hereditary factor that affects sperm production

A

Cryptorchids

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19
Q

Sperm stored in the oviduct it is capable of fertilizing eggs for up to 30 days in turkeys and 10 days in chickens

A

True

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20
Q

In male birds (chickens) the resolves are retained in the abdomen even after they are hatched. The following statement(s) is(are) true about male birds at sexual maturity

A

A and C above

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21
Q

A cryptorchid is an animal whose testicles do not drop into the scrotal sacs at birth. A cryptorchid bull will typically be able to produce spermatozoa that is viable and will fertilize an ovum of the ejaculate is used (though AI) to mate a cow

A

False

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22
Q

In our class discussion, the funnel like structure that catches the ova as they are released from the ovary of a sow during ovulation is known as the:

A

Infundibulum

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23
Q

___ is the meiotic process that results in the development of an ovum in the cow

A

Oogenesis

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24
Q

The increase in performance often observed in the crossbred progeny over the average performance of their parents is often referred to in genetics as:

A

Hybrid Vigor

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25
Q

In the sexually mature boar or bull ___ cells are involved in the production of the male secondary sex hormone testosterone

A

Leydig Cells

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26
Q

Reproductive efficiency in farm animals is measured by the number of _____

A

All of the above

27
Q

In the sexually mature boar or bull ____ cells are involved in the generation of seminal fluids to add volume to spermatozoa

A

Seminal Vesicles

28
Q

In livestock production what is the reason given by producers for castrating male animals that are raised and sold as meat

A

All of the above are correct

29
Q

List the four phases of the estrous cycle in the proper sequence of the estrus cycle events

A

Proestrus, estrus, metestrus, and diestrus

30
Q

What so the main function of the placenta in the cow reproductive system?

A

Housing and protection of the developing fetus

31
Q

In animal reproduction, the advantages of the technologies of multiple ovulations, estrus synchronization, embryo sexing and transplantation is the increased production of bull calves in beef cattle and increased production of heifer calves in dairy cattle

A

True

32
Q

Many environmental and hereditary factors affect fertility in both sides and dams; however, hereditary factors are usually temporary while environmental factors are usually permanent

A

False

33
Q

___ is the average length of the estrous cycle in the ewe and ___ is the average length of the estrous cycle in the sow.

A

17 and 28 days

34
Q

The incubation period for turkey eggs is ___.

A

28 Days

35
Q

In our class discussion the funnel like structure that catches the ova as this are released form the ovary of a sow during ovulation is known as the:

A

Infundibulum

36
Q

The scar tissue(s) left in the ovary after ovulation occurs in either cow or sow reproductive tracts is/are known as ___.

A

Corpus Lutea

37
Q

Ovarian functions occur in a cyclic manner following puberty. This cyclic nature of events is known as the:

A

Estrous cycle

38
Q

___ is the length of gestation in the cow

A

282 Days

39
Q

___ is the reproductive technique or process used to control the estrous cycle so that female animals in the her are in estrus at the same time

A

Estrus Synchronization

40
Q

___ and ___ are considered technological advances in reproduction:

A

A and B above

41
Q

___ is the length of gestation in the ewe or doe

A

150 days

42
Q

___ is the length of the gestation in the mare

A

335 days

43
Q

Which major hormone of produced by testicular cells that is responsible for male secondary sex characteristics

A

Testosterone

44
Q

Is the meiotic process that relies in the development of the sperm in make farm animals

A

Spermatogenesis

45
Q

Artificial Insemination (AI) a technology in animal reproduction allows for extensive use of outstanding sires for genetic improvement. AI is primarily used for genetic improvement in the beef industry than in the dairy industry

A

False

46
Q
A
47
Q

In the sexually mature boar or bull ___ is the site of sperm Nell maturation and storage in the testicle

A

Epididymis

48
Q

Factors affecting sperm production are numerous in animal production. Which of the followed factors would be considered an environmental factors that affects sperm production

A

A and C above

49
Q

___ is the hormones secreted by the female reproductive tract that causes sexual excitability on cows, ewes, sows, etc.

A

Estrogen

50
Q

___ is the reproductive technique or process used to allow the cow to produce more ova during the estrus cycle so that their cow in the herd can be mated to produce multiple embryos for embryo transfer

A

Superovulation

51
Q

The anatomy and the ability to produce and offspring is quite different in birds as compared to mammals:

A

True

52
Q

Reproductive efficiency is a trait of great economic importance in farm animal production. To increase performance you as a future manager of an animal production unit must:

A

A and B above

53
Q

Your animal science instructor in a discussion about inducing the parturition process in domestic animals (cows, sows, does, etc.) indicated that women of child bearing age working in on a farm should never be allowed to handle the following product used in the parturition inducing process:

A

Lutalyse

54
Q

Which of the following domesticated fame animals are known to be seasonally polyestrus?

A

Mare and ewe

55
Q

What major hormone is produces by the cells of the Graafian follicle

A

Estrogen

56
Q

In which of the following livestock industries is artificial insemination (AI) used the most?

A

Dairy Cattle Industry

57
Q

Which one of the follows structures relaxes the sigmoidal flexure of the bull to straighten during mating and ejaculation

A

Retractor Flexure muscle

58
Q

Examples of technological advances in reproduction

A

Timely AI procedures and Embryo Transplant

59
Q

Function of Leydig Cells

A

Produce Testosterone

60
Q

Function of epididymis

A

site and storage of spermatozoa (savings account)

61
Q

The function of the ampulla

A

Important for bull rapid ejaculation (checking account)

62
Q

The function of Vas Deferens

A

Tube that transports sperm cells from epididymis to urethra

63
Q

Function of Bulbourethral gland

A

Secretes the gel portion of ejaculate

64
Q
A

Animal Science Notes (9 decks)

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