animal science exam 3

Question 1

Producers Job?

Answer 1

Provide feed to meet needs

Question 2

nutrients required to keep body in state of well being

Answer 2

body maintenance

Question 3

roughly half of all feed is for…

Answer 3

maintenance requirements but this can depend on demand

Question 4

Maintenance functions with a high priority for nutrients:

Answer 4

Body tissue repair, control of body temperature, energy to keep vital organs functioning, water balance maintenance

Question 5

growth occurs when

Answer 5

protein synthesis is in excess of protein breakdown

Question 6

majority of muscle is

Answer 6

Protein

Question 7

if young animals experience a restriction in feed for a short time, they may experience?

Answer 7

Compensatory growth ( above average growth rate) once nutrition improves

Question 8

Monogatrics need

Answer 8

protein and certain amino acids for growth

Question 9

young animals need what for bone growth and salt?

Answer 9

adequate calcium and phosphorus

Question 10

complete once market weight is achieved

Answer 10

Finishing

Question 11

feed high energy rations during

Answer 11

Last phase of feeding program

Question 12

milk production requires

Answer 12

Protein, minerals, vitamins and energy

Question 13

lactating dairy cows reach peak lactation

Answer 13

46 - 65 days post calving

Question 14

feed intake doesn’t catch up with rising energy requirements for

Answer 14

8 - 10 weeks

Question 15

need nutrients for growth

Answer 15

boilers

Question 16

need nutrients focused on eggs

Answer 16

layers

Question 17

increase in body weight until mature size is reached

Answer 17

growth

Question 18

coordination of all diverse process until maturity is reached

Answer 18

developments

Question 19

3 phases of prenatal life

Answer 19

Sex cells, embryo, fetus

Question 20

cells differentiate in specific types and eventually organs

Answer 20

Embryological development

Question 21

growth, development and differentiation directed by

Answer 21

DNA from the nucleus

Question 22

marked changes in shape and form

Answer 22

Fetal developments

Question 23

oder of growth follows sequential process

Answer 23

CNS, Organs, bones/tendons, muscles, fat

Question 24

increase in number of fibers

Answer 24

Hyperplasia

Question 25

Hyperplasia examples

Answer 25

First 2/3 of prenatal period, muscle growth

Question 26

increase in fiber size

Answer 26

hypertrophy

Question 27

hypertrophy example

Answer 27

last 1/3 muscle growth

Question 28

after birth, muscle growth is primarily due to

Answer 28

hypertrophy

Question 29

no physiological connection to Mather, develops outside hens body

Answer 29

embryonic development

Question 30

during develop,emt cells become grouped in appearance and function

Answer 30

tissues

Question 31

primary typed of tissues

Answer 31

Muscle, nerves, connective and epithelial

Question 32

group of tissues that perform specific functions

Answer 32

organs

Question 33

groups of organs that work together for larger general functions

Answer 33

systems

Question 34

skeletal system includes

Answer 34

bones joints, cartilage and teeth.

Question 35

functions of skeletal system

Answer 35

protects vital organs, gives basic form and shape to body

Question 36

function as levers, stores minerals and bone marrow is site of red blood cell formation

Answer 36

Bones

Question 37

three types of muscle tissues

Answer 37

skeletal, cardiac, smooth

Question 38

the largest component of "meat"

Answer 38

Skeletal

Question 39

located in organs and vessels

Answer 39

smooth

Question 40

in the heart

Answer 40

cardiac

Question 41

role of muscle

Answer 41

to convert chemical energy to mechanical energy

Question 42

based on the strength and speed of muscle contraction

Answer 42

power

Question 43

based on muscle size

Answer 43

strength

Question 44

length of time muscle can work without being fatigued

Answer 44

endurance

Question 45

heart acts as a pump and other vessels make up the?

Answer 45

circulatory system

Question 46

transport oxygenated blood away from the heart

Answer 46

Arteries

Question 47

carry deoxygenated blood back to the heart

Answer 47

veins

Question 48

secretes from ductless glands hormones in the blood stream

Answer 48

endocrine glands

Question 49

low proportion bone, high proportion muscle and optimal fat

Answer 49

superior carcass

Question 50

production of milk by the mammary gland

Answer 50

lactation

Question 51

lactation serves two functions

Answer 51

provides nutrients and source of passive immunity

Question 52

mammary gland is an

Answer 52

exocrine gland

Question 53

produces external secretion of milk thru a series of ducts

Answer 53

exocrine gland

Question 54

secretory tissue of mammary gland, millions of grape like structure

Answer 54

alveoli

Question 55

milk travels thru ducts to larger collecting area

Answer 55

gland cistern

Question 56

During milking, milk is forced into

Answer 56

teat cistern and thru streak canal to outside

Question 57

Hormones responsible for the START of lactation

Answer 57

growth hormone, adrenal corticoids, prolactin, become effective when parturition nears

Question 58

the hormone that stimulates milk letdown

Answer 58

Oxytocin

Question 59

measures how milk is maintained over time

Answer 59

persistency

Question 60

etermines potential for milk production

Answer 60

inheritance

Question 61

inflammation of udder

Answer 61

mastitis

Question 62

large amount energy required for lactation

Answer 62

Nutrition