Flashcards in Sheep Deck (55):
Original sheep had _____
When did wool animals first appear?
Spain in the middle ages
Most common meat-producing breed
Most common dairy breed
Most common meat and wool breed
South African Mutton Merino
Most common wool breed
What are the sheep-raising systems?
Early spring lambs
Late spring lambs
What is the largest single cost in sheep farming?
What controls sheep production?
Efficiency of converting feed resources into products
Most sheep are produced in _____ environments
Limits the performance of sheep, especially in lactation and gestation
Generally sufficient for sheep energy needs
Pasture and hay
Require energy supplement (cereals)
Finishing lambs (esp. feedlot-type system)
_____ of protein is more critical than _____
_____ pastures provide adequate protein for sheep
Must be supplemented in the winter
Must be supplemented for animals in confinement
Normal conditions of ewes
2-4 (75% @ 2)
Increase BW prior to breeding, ovulation rate, and lambing rate
Ewes on good quality pasture prior to breeding or supplemental feeding w/grains or pellets
Do not respond as well to flushing
By how much does flushing increase lambing rate?
Feed under normal conditions close to maintenance and based on pasture w/minimal supplementation
First 15 weeks of gestation
70% fetal growth
Last 6 weeks of gestation
How much higher are the needs of the ewe during lactation?
When does milk production peak?
Around 3 weeks
How much milk does a ewe produce per day?
What should be fed for spring lambing?
Pasture, grain supplemented
What should be fed for fall lambing?
Forage and grain supplement
When can lambs be weaned?
How early can artificially reared lambs be weaned?
What nutritious supplement do recently weaned lambs need?
18-19% CP, high energy
When do lambs usually enter feedlots for finishing?
5-6mo old @ 60-90 lbs
Sheep production is dictated by the cost of _____
When are replacement ewes normally bred for the first time?
So they can lamb at 1 or 2 years old
Bred at 7-8mo
1-year old lambing
1-year old lambing ewes are bred at ___% of final BW
Do rams or yearlings require more feed per day?
More common in finishing lambs and associated with feed and environmental stress
Overeating or pulpy kidney disease
Caused by toxins from Clostridium perfringens type D
Affects larger, fast-gaining lambs
Sudden death, loss of appetite, abdominal discomfort (kicking at belly and arching back), profuse diarrhea
How do you treat enterotoxemia?
C and D antitoxin SQ, vit. B1 IM, fluids IV or SQ
Common in rams and wethers in drylot
Depression, off feed, humped up appearance, distended abdomen
How can you prevent urinary calculli?
Maintain Ca:P, clean cool water/good water intake
Protrusion of rectal tissue outside the anus related to genetics, dusty pelleted high-roughage diets, or short docked tails
Important biological role as a constituent of Vit B12
Lethargy, reduced appetite, poor wool quality or open fleece, small size/poor condition
Common when sheep graze pastures high in iron
Hind limb weakness, poor wool quality, anemia, poor bone mineralization
Excess of copper in diet