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Sheep Science > Practice Questions from Exams/Quizzes > Flashcards

Practice Questions from Exams/Quizzes Flashcards

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Biology 101 flashcards
1
Q

Domestic sheep belong to the _____ zoological family.

A

Bovidae

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2
Q

Domestic sheep bellong to the _____ genus and _____ species.

A

Ovis Aries

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3
Q

Which state has the greatest sheep number?

A

Texas

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4
Q

List four reasons why numbers have decreased so dramatically.

A
  1. Labor shortage 2. WWII 3. Synthetics 4. Low returns/high risks
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5
Q

Which of the four reasons is most responsible for the decrease in sheep numbers?

A

I think that the development of the synthetic industry is most responsible for the 1942-2012 decrease in sheep numbers. This is because synthetic materials are more easily produced for clothing manufacture and wool has become less popular.

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6
Q

List the 11 western states of major sheep production

A

Arizona California Colorado Idaho Montana Nevada New Mexico Oregon Utah Washington Wyoming

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7
Q

Height at top of mature ram’s shoulder (1 = tallest, 3 = shortest) Compare Polypay, White Dorper and Hampshire

A

Hampshire = 1 Polypay = 2 White Dorper = 3

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8
Q

Average daily gain (1 = fastest, 3 = slowest)

A

Hampshire = 1 White Dorper = 2 Polypay = 3

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9
Q

Wool lb/hd/year (1 = most, 3 = least)

A

Hampshire = 2 White Dorper = NA Polypay = 1

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10
Q

Wool blood grade for Polypays

A

1/2, 3/8, 1/4

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11
Q

Wool blood grade for Hampshires

A

3/8, 1/4, low 1/4

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12
Q

Face, ear, leg color of Hamp, W. Dorp and Poly

A

Hamp - black Dorp and Poly - white

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13
Q

Lamb birth weight, lb (1 = fattest, 3 = thinnest)

A

Hampshire = 1 White Dorper = 3 Polypay = 2

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14
Q

Prolificacy, % (1 = highest, 3 = lowest)

A

Hampshire = 2 White Dorper = 3 Polypay = 1

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15
Q

Lamb vigor for Hamp, W. Dorp and Poly

A

Hampshire = Low White Dorper = High Polypay = High

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16
Q

Milking ability, lb/body weight (1 = highest, 3 = lowest)

A

Hampshire = 3 White Dorper = 2 Polypay = 1

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17
Q

Mothering ability (1 = highest, 3 = lowest)

A

Hampshire = 3 White Dorper = 2 Polypay = 1

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18
Q

Commerical lamb maturity (1 = late, 3 = early)

A

Hampshire = 1 White Dorper = 3 Polypay = 2

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19
Q

Reproductive maturity (1 = late, 3 = early)

A

Hampshire = 1 White Dorper = 3 Polypay = 3

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20
Q

Bone size of Hamp, W. Dorp and Polypay

A

Hampshire = Large White Dorper = Medium Polypay = Medium

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21
Q

Body shape of Hamp, W. Dorp and Polypay

A

Hampshire = Muscular White Dorper = Muscular Polypay = Angular

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22
Q

Ear carriage of Hamp, W. Dorp and Polypay

A

Hampshire = Droopy White Dorper = Semi-erect Polypay = Semi-erect

23
Q

Ear thickness of Hamp, W. Dorp and Polypay

A

Hampshire = Thick White Dorper = Thick Polypay = Thin

24
Q

Wool cap of Hamp, W. Dorp and Polypay

A

Hampshire = Yes White Dorper = None Polypay = Small

25
Q

Out-of-season breeding for Hamp, W. Dorp and Polypay (Springtime breeding)

A

Hampshire = None White Dorper = Some Polypay = Some

26
Q

Ready for slaughter at what age?

A

5- 1/2 mo

27
Q

Weaned at what age?

A

60 d

28
Q

Reach mature weight at what age?

A

2-3 years

29
Q

A prolificacy rate of 200% means?

A

On average the sheep has 2 lambs/parturition

30
Q

Hampshire lambs are noted for _____ and _____.

A

Fast growth rates and good carcasses

31
Q

Polypay ewes are _____ and _____.

A

Excellent mothers and milkers

32
Q

White Dorpers have a mixture of _____, more ____ than ____, do not require _____ and _____.

A

Have a mixture of wool and hair, more hair fibers than wool fibers, do not require shearing and shed annually

33
Q

In which year were the total sheep numbers highest?

A

1942 (56 million)

34
Q

How many sheep are in the U.S. today?

A

5 million

35
Q

6 reasons why numbers have decreased from 56 million to today’s lowest number in history:

A
  1. Labor shortage 2. WWII 3. High risk/Low return 4. Prestige (Most prestigous = beef cattle) 5. Synthetics (competing with wool demand) 6. Grazing allotments - less land available
36
Q

What is the formula for teeth of a 4-yr old ewe?

A

Teeth (32) = 2 [I04+ C00+ P33+ M33]

37
Q

The blood grades of wool are (List highest to lowest) _____, _____, _____, _____, _____, _____, and _____.

A

Fine

1/2 blood

3/8 blood

1/4 blood

low 1/4 blood

Common

Braid

38
Q

The two most common reproductive diseases that affect ewes are…

A

Vibrosis and Enzoonotic abortion of ewes

39
Q

Short fibers removed during combing are called:

A

Noils

40
Q

Several clips of wool assembled for sale at one time:

A

Wool pool

41
Q

Tool used to dock lambs

A

Elastrator

42
Q

Component of wool fiber that keeps clothes from permanently wrinkling

A

Crimp

43
Q

Continuous, untwisted strand of wool fibers of predetermined length after short fibers are removed

A

Combing wools

44
Q

Wool just sheared from a sheep

A

Grease wool

45
Q

Responsible for sheep’s odor

A

Suint

46
Q

Gland attached to each fiber that secretes cholesterol

A

Sebaceous gland

47
Q

Wool from the thigh area of the sheep

A

Britch wool

48
Q

Wild stock from which domestic sheep descended

A

Asiatic Urial

49
Q

An inelastic fiber that will not take a dye

A

Kemp

50
Q

Component of wool removed during scouring

A

Yolk

51
Q

Wool that grades 3/8 blood

A

Medium wools

52
Q

Wool that has never reached the spinning stage of manufacture

A

Virgin wool

53
Q

Equipment used to disentangle, separate, and straighten wool fibers

A

Card

Sheep Science (13 decks)

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