The 2008 Maryland 4-H Tail Docking Policy remains virtually unchanged from 2007. 4-H lambs should be docked no shorter than the distal end of the caudal tail fold. The caudal fold is a flap of skin attached to the underside of the tail near the rectum and is clearly visible when the tail is lifted.Lambs docked in this manner will have a minimum tail length of 0.7 inches at the time of show.
Purchased lambs should have a minimum tail length of 1.4 inches at the time of "weaning." This gives a high probability that the lamb's tail will measure at least 0.7 inches at the time of show. 4-Hers should use the DeTail device to select lambs that have been properly docked.
Voluntary compliance
In 2008, compliance with the Maryland 4-H Tail Docking Policy will be VOLUNTARY. Lamb tails (docks) will not be officially measured at Maryland 4-H activities. No lambs will be disqualified from showing due to tail length, unless the short dock results in a rectal prolapse.The policy will be re-evaluated at the end of 2008.
Rectal prolapses
Any sheep or lamb that exhibits a rectal prolapse at a 4-H activity will be ineligible for the activity and sent home by the Extension Educator, Sheep Superintendent, or other appropriately deemed individual. The following will be used as a guideline to determine to occurrence of a rectal prolapse:
“A rectal prolapse is defined as an inversion of the rectum that protrudes 4 cm (1.6 in.) or more outside the body and remains exterior to the body while the animal is standing."
If a lamb is observed with a rectal prolapse (by one of the above people) and in the future is not observed with a rectal prolapse, it is still classified as having a rectal prolapse. This was the criteria used in the 2003 multi-year study published by the Journal of Animal Science that established a link between tail length and the incidence of rectal prolapses in lambs fed concentrate diets.
Questions about Maryland's 2008 4-H Tail Docking Policy should be directed to Susan Schoenian at (301) 432-2767 x343 or sschoen@umd.edu.
© Copyright 2007. Return to Maryland Small Ruminant Page.
Read more about the issue on the web
[PDF] 2007 Maryland 4-H Tail Docking Policy
[PDF] Length of docked tail and the incidence of rectal prolapse in lambs
[PDF] The effects of dock length on the incidence of rectal prolapse in lambs
A Path to Resolution Regarding the Show Lamb Tail Docking Controversy
A candid discussion on the tail docking controversy
Maryland's Tail Docking Policy: Past, Present, and Future
Rectal prolapse: a complex problem with many contributing factors
[PDF] 4-H Sheep Projects: Tail docking length for youth shows