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animal science exam 3 > animal science exam 3 > Flashcards

animal science exam 3 Flashcards

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Biology 101 flashcards
1
Q

Producers Job?

A

Provide feed to meet needs

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2
Q

nutrients required to keep body in state of well being

A

body maintenance

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3
Q

roughly half of all feed is for…

A

maintenance requirements but this can depend on demand

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4
Q

Maintenance functions with a high priority for nutrients:

A

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

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5
Q

growth occurs when

A

protein synthesis is in excess of protein breakdown

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6
Q

majority of muscle is

A

Protein

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7
Q

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

A

Compensatory growth ( above average growth rate) once nutrition improves

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8
Q

Monogatrics need

A

protein and certain amino acids for growth

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9
Q

young animals need what for bone growth and salt?

A

adequate calcium and phosphorus

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10
Q

complete once market weight is achieved

A

Finishing

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11
Q

feed high energy rations during

A

Last phase of feeding program

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12
Q

milk production requires

A

Protein, minerals, vitamins and energy

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13
Q

lactating dairy cows reach peak lactation

A

46 - 65 days post calving

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14
Q

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

A

8 - 10 weeks

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15
Q

need nutrients for growth

A

boilers

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16
Q

need nutrients focused on eggs

A

layers

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17
Q

increase in body weight until mature size is reached

A

growth

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18
Q

coordination of all diverse process until maturity is reached

A

developments

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19
Q

3 phases of prenatal life

A

Sex cells, embryo, fetus

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20
Q

cells differentiate in specific types and eventually organs

A

Embryological development

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21
Q

growth, development and differentiation directed by

A

DNA from the nucleus

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22
Q

marked changes in shape and form

A

Fetal developments

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23
Q

oder of growth follows sequential process

A

CNS, Organs, bones/tendons, muscles, fat

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24
Q

increase in number of fibers

A

Hyperplasia

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25
Q

Hyperplasia examples

A

First 2/3 of prenatal period, muscle growth

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26
Q

increase in fiber size

A

hypertrophy

27
Q

hypertrophy example

A

last 1/3 muscle growth

28
Q

after birth, muscle growth is primarily due to

A

hypertrophy

29
Q

no physiological connection to Mather, develops outside hens body

A

embryonic development

30
Q

during develop,emt cells become grouped in appearance and function

A

tissues

31
Q

primary typed of tissues

A

Muscle, nerves, connective and epithelial

32
Q

group of tissues that perform specific functions

A

organs

33
Q

groups of organs that work together for larger general functions

A

systems

34
Q

skeletal system includes

A

bones joints, cartilage and teeth.

35
Q

functions of skeletal system

A

protects vital organs, gives basic form and shape to body

36
Q

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

A

Bones

37
Q

three types of muscle tissues

A

skeletal, cardiac, smooth

38
Q

the largest component of “meat”

A

Skeletal

39
Q

located in organs and vessels

A

smooth

40
Q

in the heart

A

cardiac

41
Q

role of muscle

A

to convert chemical energy to mechanical energy

42
Q

based on the strength and speed of muscle contraction

A

power

43
Q

based on muscle size

A

strength

44
Q

length of time muscle can work without being fatigued

A

endurance

45
Q

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

A

circulatory system

46
Q

transport oxygenated blood away from the heart

A

Arteries

47
Q

carry deoxygenated blood back to the heart

A

veins

48
Q

secretes from ductless glands hormones in the blood stream

A

endocrine glands

49
Q

low proportion bone, high proportion muscle and optimal fat

A

superior carcass

50
Q

production of milk by the mammary gland

A

lactation

51
Q

lactation serves two functions

A

provides nutrients and source of passive immunity

52
Q

mammary gland is an

A

exocrine gland

53
Q

produces external secretion of milk thru a series of ducts

A

exocrine gland

54
Q

secretory tissue of mammary
gland, millions of grape like structure

A

alveoli

55
Q

milk travels thru ducts to
larger collecting area

A

gland cistern

56
Q

During milking, milk is forced into

A

teat cistern and thru streak canal to outside

57
Q

Hormones responsible for the START of lactation

A

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

58
Q

the hormone that stimulates milk letdown

A

Oxytocin

59
Q

measures how milk is
maintained over time

A

persistency

60
Q

etermines potential for milk
production

A

inheritance

61
Q

inflammation of udder

A

mastitis

62
Q

large amount energy required for lactation

A

Nutrition

63
Q
A

animal science exam 3 (1 decks)

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