Male and Female Repro System

Question 1

What is the incubation period for chicken eggs?

Answer 1

21 Days

Question 2

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

Answer 2

True

Question 3

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

Answer 3

Ovulation

Question 4

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

Answer 4

PGF2A

Question 5

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

Answer 5

False

Question 6

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

Answer 6

Follicle

Question 7

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

Answer 7

Estrogen

Question 8

___ is the length of the gestation in the sow

Answer 8

114 Days

Question 9

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

Answer 9

True

Question 10

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

Answer 10

Graafian follicle

Question 11

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

Answer 11

FSH

Question 12

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:

Answer 12

Estrus

Question 13

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

Answer 13

Progesterone

Question 14

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

Answer 14

LH

Question 15

Which principal hormones are involved in brining about successful parturition?

Answer 15

Prolactin and Oxytocin

Question 16

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

Answer 16

Ova & estrogen and spermatozoa & testosterone

Question 17

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

Answer 17

Seminiferous Tubules

Question 18

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

Answer 18

Cryptorchids

Question 19

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

Answer 19

True

Question 20

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

Answer 20

A and C above

Question 21

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

Answer 21

False

Question 22

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:

Answer 22

Infundibulum

Question 23

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

Answer 23

Oogenesis

Question 24

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

Answer 24

Hybrid Vigor

Question 25

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

Answer 25

Leydig Cells

Question 26

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

Answer 26

All of the above

Question 27

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

Answer 27

Seminal Vesicles

Question 28

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

Answer 28

All of the above are correct

Question 29

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

Answer 29

Proestrus, estrus, metestrus, and diestrus

Question 30

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

Answer 30

Housing and protection of the developing fetus

Question 31

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

Answer 31

True

Question 32

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

Answer 32

False

Question 33

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

Answer 33

17 and 28 days

Question 34

The incubation period for turkey eggs is ___.

Answer 34

28 Days

Question 35

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:

Answer 35

Infundibulum

Question 36

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

Answer 36

Corpus Lutea

Question 37

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

Answer 37

Estrous cycle

Question 38

___ is the length of gestation in the cow

Answer 38

282 Days

Question 39

___ 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

Answer 39

Estrus Synchronization

Question 40

___ and ___ are considered technological advances in reproduction:

Answer 40

A and B above

Question 41

___ is the length of gestation in the ewe or doe

Answer 41

150 days

Question 42

___ is the length of the gestation in the mare

Answer 42

335 days

Question 43

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

Answer 43

Testosterone

Question 44

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

Answer 44

Spermatogenesis

Question 45

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

Answer 45

False

Question 47

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

Answer 47

Epididymis

Question 48

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

Answer 48

A and C above

Question 49

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

Answer 49

Estrogen

Question 50

___ 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

Answer 50

Superovulation

Question 51

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

Answer 51

True

Question 52

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:

Answer 52

A and B above

Question 53

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:

Answer 53

Lutalyse

Question 54

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

Answer 54

Mare and ewe

Question 55

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

Answer 55

Estrogen

Question 56

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

Answer 56

Dairy Cattle Industry

Question 57

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

Answer 57

Retractor Flexure muscle

Question 58

Examples of technological advances in reproduction

Answer 58

Timely AI procedures and Embryo Transplant

Question 59

Function of Leydig Cells

Answer 59

Produce Testosterone

Question 60

Function of epididymis

Answer 60

site and storage of spermatozoa (savings account)

Question 61

The function of the ampulla

Answer 61

Important for bull rapid ejaculation (checking account)

Question 62

The function of Vas Deferens

Answer 62

Tube that transports sperm cells from epididymis to urethra

Question 63

Function of Bulbourethral gland

Answer 63

Secretes the gel portion of ejaculate