Practice Questions from Exams/Quizzes Flashcards
Domestic sheep belong to the _____ zoological family.
Bovidae
Domestic sheep bellong to the _____ genus and _____ species.
Ovis Aries
Which state has the greatest sheep number?
Texas
List four reasons why numbers have decreased so dramatically.
- Labor shortage 2. WWII 3. Synthetics 4. Low returns/high risks
Which of the four reasons is most responsible for the decrease in sheep numbers?
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.
List the 11 western states of major sheep production
Arizona California Colorado Idaho Montana Nevada New Mexico Oregon Utah Washington Wyoming
Height at top of mature ram’s shoulder (1 = tallest, 3 = shortest) Compare Polypay, White Dorper and Hampshire
Hampshire = 1 Polypay = 2 White Dorper = 3
Average daily gain (1 = fastest, 3 = slowest)
Hampshire = 1 White Dorper = 2 Polypay = 3
Wool lb/hd/year (1 = most, 3 = least)
Hampshire = 2 White Dorper = NA Polypay = 1
Wool blood grade for Polypays
1/2, 3/8, 1/4
Wool blood grade for Hampshires
3/8, 1/4, low 1/4
Face, ear, leg color of Hamp, W. Dorp and Poly
Hamp - black Dorp and Poly - white
Lamb birth weight, lb (1 = fattest, 3 = thinnest)
Hampshire = 1 White Dorper = 3 Polypay = 2
Prolificacy, % (1 = highest, 3 = lowest)
Hampshire = 2 White Dorper = 3 Polypay = 1
Lamb vigor for Hamp, W. Dorp and Poly
Hampshire = Low White Dorper = High Polypay = High
Milking ability, lb/body weight (1 = highest, 3 = lowest)
Hampshire = 3 White Dorper = 2 Polypay = 1
Mothering ability (1 = highest, 3 = lowest)
Hampshire = 3 White Dorper = 2 Polypay = 1
Commerical lamb maturity (1 = late, 3 = early)
Hampshire = 1 White Dorper = 3 Polypay = 2
Reproductive maturity (1 = late, 3 = early)
Hampshire = 1 White Dorper = 3 Polypay = 3
Bone size of Hamp, W. Dorp and Polypay
Hampshire = Large White Dorper = Medium Polypay = Medium
Body shape of Hamp, W. Dorp and Polypay
Hampshire = Muscular White Dorper = Muscular Polypay = Angular
Ear carriage of Hamp, W. Dorp and Polypay
Hampshire = Droopy White Dorper = Semi-erect Polypay = Semi-erect
Ear thickness of Hamp, W. Dorp and Polypay
Hampshire = Thick White Dorper = Thick Polypay = Thin
Wool cap of Hamp, W. Dorp and Polypay
Hampshire = Yes White Dorper = None Polypay = Small
Out-of-season breeding for Hamp, W. Dorp and Polypay (Springtime breeding)
Hampshire = None White Dorper = Some Polypay = Some
Ready for slaughter at what age?
5- 1/2 mo
Weaned at what age?
60 d
Reach mature weight at what age?
2-3 years
A prolificacy rate of 200% means?
On average the sheep has 2 lambs/parturition
Hampshire lambs are noted for _____ and _____.
Fast growth rates and good carcasses
Polypay ewes are _____ and _____.
Excellent mothers and milkers
White Dorpers have a mixture of _____, more ____ than ____, do not require _____ and _____.
Have a mixture of wool and hair, more hair fibers than wool fibers, do not require shearing and shed annually
In which year were the total sheep numbers highest?
1942 (56 million)
How many sheep are in the U.S. today?
5 million
6 reasons why numbers have decreased from 56 million to today’s lowest number in history:
- 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
What is the formula for teeth of a 4-yr old ewe?
Teeth (32) = 2 [I04+ C00+ P33+ M33]
The blood grades of wool are (List highest to lowest) _____, _____, _____, _____, _____, _____, and _____.
Fine
1/2 blood
3/8 blood
1/4 blood
low 1/4 blood
Common
Braid
The two most common reproductive diseases that affect ewes are…
Vibrosis and Enzoonotic abortion of ewes
Short fibers removed during combing are called:
Noils
Several clips of wool assembled for sale at one time:
Wool pool
Tool used to dock lambs
Elastrator
Component of wool fiber that keeps clothes from permanently wrinkling
Crimp
Continuous, untwisted strand of wool fibers of predetermined length after short fibers are removed
Combing wools
Wool just sheared from a sheep
Grease wool
Responsible for sheep’s odor
Suint
Gland attached to each fiber that secretes cholesterol
Sebaceous gland
Wool from the thigh area of the sheep
Britch wool
Wild stock from which domestic sheep descended
Asiatic Urial
An inelastic fiber that will not take a dye
Kemp
Component of wool removed during scouring
Yolk
Wool that grades 3/8 blood
Medium wools
Wool that has never reached the spinning stage of manufacture
Virgin wool
Equipment used to disentangle, separate, and straighten wool fibers
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