Pig Part II (Exam II)

Question 1

What hormone directly causes an increase in milk synthesis?

Answer 1

Prolactin

Question 2

Which of the following hormones, released by the ovary, inhibits hormonal release from the hypothalamus?

Answer 2

Progesterone

Question 3

The functional units of mammary tissue are?

Answer 3

Alveoli

Question 4

The presence of a fetus inhibits this hormone from being released by the uterus to destroy the corpus luteum?

Answer 4

PGF2a

Question 5

The nervous system originates from the?

Answer 5

Ectoderm

Question 6

Which hormone by the pituitary targets the thyroid gland to produce T3 and T4?

Answer 6

TSH

Question 7

What does insulin do in the body?

Answer 7

Lower blood glucose levels

Question 8

A cow providing milk to her calf is an example of which behavioral system?

Answer 8

Care-giving

Question 9

A calf bellowing out to her mother for milk is an example of which behavioral system?

Answer 9

Care-soliciting

Question 10

Courtship and the flehmen response are both examples of which system of behavior?

Answer 10

Sexual

Question 11

The (blank) is the term for the embryo that implants into the uterus which then develops tissues and organs and is called a(blank)?

Answer 11

Blastocyst,,,Fetus

Question 12

Which hormone is released prior to parturition in the dam due to elevated cortisol levels from the fetus?

Answer 12

Relaxin

Question 13

What is the correct order of anatomical structures(internal to external)?

Answer 13

Testis, epididymis, vas deferens, urethra, penis

Question 14

Where is the site of natural copulation in all female livestock except for the sow?

Answer 14

Vagina

Question 15

The digestive system originates from the?

Answer 15

Endoderm

Question 16

What type of tissue is found in the alveoli?

Answer 16

Epithelial

Question 17

What holds the mammary glands in place on the body?

Answer 17

Middle and lateral suspensory ligament

Question 18

What hormone is directly responsible for ovulation?

Answer 18

LH

Question 19

When you approach a ewe, she will often find an escape path around you and run away to avoid confrontation and contact. Which system of behavior is this an example of?

Answer 19

Agonistic

Question 20

You drop your cellular phone in the pen with the pigs and they all run over to it and start moving it with their snouts. What type of behavior are they exhibiting?

Answer 20

Investigative

Question 21

What does LH stimulate in the bull?

Answer 21

Testosterone synthesis

Question 22

What does FSH stimulate in the boar?

Answer 22

Sperm production

Question 23

What does glucagon do in the body?

Answer 23

Raise blood glucose levels

Question 24

Which hormone specifically targets the cortex of the adrenal gland?

Answer 24

ACTH

Question 25

You open the barn doors in the morning and the sheep nearest to the door gets up and walks out to the pasture to eat. All of the other sheep in the barn follow her. What type of behavior is the flock exhibiting?

Answer 25

Allelomimetic

Question 26

Walking to class you notice all of the squirrels are gathered under a tree. Your partner exclaims, "It feels like rain!" Suddenly you realize that the squirrels are showing what behavioral type?

Answer 26

Shelter- seeking

Question 27

Which hormone, produced by the ovary would increase the size of the mammary gland?

Answer 27

Estrogen

Question 28

Which hormone, produced by the ovary would stimulate alveoli growth?

Answer 28

Progesterone

Question 29

which of the following is not true about gametogenesis?

Answer 29

Occurs in a steer

Question 30

Which of the following is not true about spermatogenesis?

Answer 30

Occurs outside the zona pellucida

Question 31

Which of the following is not true about oogenesis?

Answer 31

Occurs in the seminiferous tubules

Question 32

function of penis

Answer 32

copulation

Question 33

function of seminal vesicles

Answer 33

produce the fluid portion of semen

Question 34

function of testes

Answer 34

produce the male gamete

Question 35

function of epididymis

Answer 35

transport sperm to the ampulla

Question 36

function of the tunica dartos

Answer 36

thermoregulation of the gonad

Question 37

function of the vas deferens

Answer 37

spermatazoa maturation

Question 38

Length of estrous cycle

Answer 38

``` Cow = 21 days Sow= 17 days Ewe= 21 days ```

Question 39

Length of estrus

Answer 39

``` Cow= 18 hours Sow= 30 hours Ewe= 60 hours ```

Question 40

Length of Gestation

Answer 40

``` Cow= 18-48 days Sow= 24-27 days Ewe= 38-42 days ```

Question 41

connective tissue function

Answer 41

connect muscle to bone and other tissues

Question 42

nervous tissue functions

Answer 42

transmits information throughout body by stimuli (neurons)

Question 43

epithelial tissue functions

Answer 43

protection, secretion, excharge

Question 44

muscle tissue functions

Answer 44

aide in movement

Question 45

There are high levels of progesterone circulating a sow. What phase of the estrous cycle is she most likely to be in?

Answer 45

Luteal

Question 46

While counting sheep in your sleep, you notice that they are in heat. What are the dominant structures you would expect to find on the ovaries of those sheep?

Answer 46

follicles

Question 47

difference between estrus and estrous

Answer 47

estrus: period in which the female is in heat, accepting male estrous: time from estrus to estrus

Question 48

Which hormone, produced by the ovary would stimulate alveoli growth?

Answer 48

Progesterone

Question 49

there are six different types of connective tissue in mammals name three.

Answer 49

fibrous, loose, adipose

Question 50

What is the predominant hormone being produced by the ovary if the animal is in the follicular phase of the estrous cycle?

Answer 50

Estrogen

Question 51

What is the stimulus ultimately causes lactation in mammals?

Answer 51

suckling

Question 52

What is the structure that allows for the exchange of nutrients and waste between a mother and the fetus is called?

Answer 52

Placenta

Question 53

What is the name for a specific type of hormone that is released outside of the body by a specific gender that targets the other gender for reproductive purposes?

Answer 53

Pheromones

Question 54

What is the scientific term for a fertilized oocyte?

Answer 54

Zygote

Question 55

What is the term for the natural end of gestation?

Answer 55

Parturition

Question 56

Name all 8 breeds of beef

Answer 56

Angus, Hereford, Simmental, Limousin, Brangus, Shorthorn, Brahman, Charolais

Question 57

Angus

Answer 57

``` Highest numbers british breed from scotland naturally polled black hair and skin moderate frame size maternal breed good marbling ```

Question 58

Hereford

Answer 58

``` #2 in numbers british breed from england red body w/ white face & underline can be horned or polled range cattle docile longevity ```

Question 59

Simmental

Answer 59

``` continental breed switzerland red&white, yellow, black colored growth traits maternal traits ```

Question 60

Limousin

Answer 60

``` continental breed france polled & horned golden, red, black large framed muscular rate of gain feed efficiency growth traits ```

Question 61

Charolais

Answer 61

``` continental breed frane polled or horned white, straw large frame muscular growth rate feed efficiency ```

Question 62

shorthorn

Answer 62

``` british breed from england polled or horned red, white, roan coloring docile milking ability ```

Question 63

Brahman

Answer 63

``` Zebu US (brazil/india) horned gray & red humped back large, droopy ears loose skin heat tolerant parasite resistant maternal ```

Question 64

Brangus

Answer 64

``` United States 3/8 brahman & 5/8 angus polled black heat tolerant early maturing muscular ```

Question 65

Name all the dairy breeds

Answer 65

holstein, jersey, brown swiss, ayrshire, guernsey

Question 66

Holstein

Answer 66

``` from netherlands black and white weigh 1500 lbs #1 in US highest milk yield ```

Question 67

jersey

Answer 67

``` from jersey island grey/fawn color weigh 1000 lbs #2 in US highest milk fat ```

Question 68

Brown Swiss

Answer 68

From switzerland solid black/brown weigh 1400 lbs #3 in US

Question 69

Ayrshire

Answer 69

from scotland mahogany w/ white spots weigh 1200 lbs #4 in USA

Question 70

Guernsey

Answer 70

from guernsey island light red and white/yellow weigh 1100 lbs #5 in US

Question 71

Describe ewe breeds

Answer 71

``` white faced reproductive efficiency wool production milking ability longevity ```

Question 72

describe ram breeds

Answer 72

black faced growth rate carcass characteristics

Question 73

Rambouillet

Answer 73

``` ewe breed france 150-200 lbs medium growth rate medium muscling ```

Question 74

Corriedale

Answer 74

``` ewe breed New zealand 130-180 lbs medium growth rate medium muscling ```

Question 75

Suffolk

Answer 75

``` ram breed england 250-350 lbs very high growth rate high muscling ```

Question 76

hampshire

Answer 76

``` ran breed england 225-325 lbs high growth rate high muscling ```

Question 77

Dorset

Answer 77

``` dual-purpose breed england ewes 140-180 lbs rams 210-250 lbs medium growth rate medium muscling ```

Question 78

Columbia

Answer 78

``` dual-purpose breed USA ewes 150-225 lbs rams 225-300 lbs high growth rate medium muscling ```

Question 79

Yorkshire pig

Answer 79

``` maternal breed highest #s large white breed, long body, large frame, erect ears large litters high milk production heavy 21 day litter weight slow growth rate ```

Question 80

Landrace pig

Answer 80

``` from denmark medium sized white breed, large droopy ears, straight snout, long deep body, flat back large litters efficient feed utilization meaty carcass ```

Question 81

Duroc

Answer 81

``` terminal breed from Jersey reds & red berkshires cherry red color, droopy ears, large good carcass type & conformation high muscling & carcass yield fast growth rate lean carcass ```

Question 82

hampshire pig

Answer 82

``` terminal breed black w/ white band around shoulders & front legs erect ears, long face, small breed lean carcass thin backfat thickness ```