sheep production management. overview basic steps to lambing methods used for lambing challenges...
TRANSCRIPT
SHEEP PRODUCTION MANAGEMENT
Overview
• Basic Steps to Lambing
• Methods Used for Lambing
• Challenges Associated with Lambing
I. Basic Steps
A. Managing Ewe’s Health & Nutrition prior to and during pregnancy (gestation)
• Flushing used before breeding• Nutrition affects both the ewe and lamb
during pregnancy
I. Basic Steps continued
B. Identifying When Ewes Are Bred• Ram harness
• Chest paint
• Watch ewes for signs of heat (estrus)
• Check ewe’s udder for development late in gestation.
• Normal gestation length – 5 months minus 5 days, or 145 days
I. Basic Steps continued
C. Directly following Birth
• 3 steps commonly followed for high management operations.
• Strip
• Snip
• Dip
I. Basic Steps continued
D. Ways of Identification
• Ear Tag
• Ear Notching
• Ear Tattoo
• Paint Brand
I. Basic Steps continued
E. Docking, Castration, & Vaccinations
• Practices vary widely in different operations
• Docking
• Castrating
• Vaccinating
II. MethodsA. Pasture Lambing
– Ewe lambs in the field and does not come into the barn.
– Western Oregon– Cuts down on labor needed for
operation– Reduces chances of scours and
other bacteria infections– Increased chance of hypothermia
(cold lambs) & starvation.
II. MethodsB. Barn Lambing
• Intensive/High labor operation• Drop pens• Post lambing every ewe enters a small pen
(jug) for observation. • Higher incidence of scours & navel infection
II. Methods
C. Pasture to Barn Lambing• Moving ewe and lambs from pasture into barn
directly after lambing.
• Somewhat intensive management system
• Allows for a period of observation
• It’s a mix of the two other methods
III. Challenges/Problems
A. Abnormal Births
• Common Examples:• Legs turned back
• Head turned back
• Hind legs first
• Tail only, no legs
http://www.extension.iastate.edu/Publications/PM829X7.pdf
Example of A Normal Birth
www.ukagriculture.com/. ../lambing.html
III. Challenges/Problems
B. Poor Mothers• Abandonment or rejection• Udder problems
• Mastitis • Not enough or no milk/colostrums
• Often results in bummer lambs• Fed with milk supplement• Grafted onto another ewe
III. Challenges/Problems
C. Disease & Illness– Common Examples:
• Scours
• Sore mouth• White Muscle disease
– Deficiency in selenium– Common in Western Oregon
• Phenomena
III. Challenges/Problems
D. Predators• Fox problem with young lambs
• Coyotes main problem
• Mountain lions
• Bear
• Dogs
kcs.kana.k12.wv.us/.../ candid/Pictures/cyote.jpg