Am 23. Juni 07 ist bei uns die erste Aue mit Lamm dieser schönen, alten Rasse angekommen. Der Amerikanische Klub hat mir die Erlaubnis gegeben, diesen Standard zu veröffentlichen.

Auf Deutsch finden sie einen sehr ausführlichen Bericht auf der hp


  JSBA Breed standard

The Jacob Breed Standard is divided into three categories:

Desirable traits,
acceptable, but less desirable traits, and unacceptable/disqualifying traits.

Jacob four horned ram

Desirable traits

Slender and triangular head
Clear of wool forward of the horns
Large symmetrical eye patches incorporating the cheeks
Clear white blaze from poll to muzzle
Straight profile
Nasal septum and mouth should be dark pigmented in adults even thought the muzzle patch may be absent
Small, erect and slightly above the horizontal
White, colored or spotted


Clear, bright eyes, no evidence of split upper eyelid deformity
Color: brown, blue, or marbled
Color: black or black and white striped
Any number provided they are well differentiated (cleanly separated) and balanced
Flesh between horn bases
Two horned rams should have wide, well spaced horns with good clearance of checks, nose, and mouth at maturity
Lower horns should be well spaced from face, cheeks and neck
Horns firm, fine featured with femininity, balanced, and well differentiated
Medium length
The natural Jacob tail reaches almost to the hock
Is wooly, not hairy
Set square on all corners, standing firm, well-balanced
Fine boned and of medium length
Free of wool below the knees
Color: white with or without colored patches
Hooves are black or striped
Mature rams weigh between 120 and 180 lbs.
Mature ewes weigh between 80 and 120 lbs.
Long framed, smooth muscled with well-sprung ribs
Fine boned with straight back
The rump slopes toward the tail head
Rams have short scrotums holding testicles closer to the body than modern breeds
Ewes have small udders held closer to the body than modern breeds
The Jacob is a randomly spotted sheep, basically white with colored spots or patches
Preferably an approximate 60% white and 40% black or lilac spotting
Skin beneath white fleece is pink, skin beneath colored spots dark
Fleece is a medium grade with an open character and soft springy handle (Bradford count 44-56, demi-luster)
Fleece staple length is 3-7 inches, fleece weight 3-6 lbs, with little grease and high yield

Acceptable but less desirable traits

Having only one of the three facial markings
Slipped (below the eye) eye patch or patches
Pink nose on young lambs
Slight tendency to Roman nose
Young lambs, up to a maximum of 6 months of age, showing baby wool forward of the horns
Slightly larger but proportional to body
Grade 2 or 3 split upper eyelid deformity causing no injury to the eye which would require surgical intervention
Fused even horns
Slightly forward tipping horns which do not impair grazing
Insufficient spacing between upper and lower horns (must be differentiated and balanced though flesh may not be present)
Unbalanced horn set
Fused horns
Ewes with scurs in place of lower (secondary) horns
Slightly cow hocked
One to three dark colored legs
White hooves
Random colored patches on front half of body only
Not less than 15% colored markings nor more than 85% color
Patches of color with some bleeding, mottling or freckling
Small amount of freckling in white wool
Small amount of kemp

Unacceptable/Disqualifying Traits

Absence of facial markings
Wool forward of the horns
Large, square non-Jacob looking head
Large pendulous ears and/or disproportionate to body
Grade 3 split upper eyelid deformity or more, causing discomfort or injury to eye
Wide, broad bone structure between the eyes
Polled sheep, or sheep with scurs only.
Two-horned rams having small, weak, feminine looking horns.
Multiple-horned rams having fewer than four strong horns, with scurs in upper or lower horn position. (it is fully acceptable for rams with at least 4 or more strong balanced horns to have additional scurs or horn buds)
Two-horned ewes having small or weak horns.
Multiple horned ewes having scurs in the primary/top horn position
Solid white horns
Forward pointing horns curling towards the eyes, or growing over the nose impairing the ability to graze naturally
Narrow or close horns on two horned rams that lack space between the growing horns and his neck or jaw, encumbering his well being
Undifferentiated and unbalanced set to four horned ram, i.e., fused in an irregular pattern on one or both sides
Small, feminine horns on rams
Lower (lateral) horns that grow into the face, cheek or neck
All dark colored
Wool present below the knees and hocks
All conformational and/or congenital defects leading to unsoundness for breeding
Large, heavy boned
Fat or short tailed
Rams over 180 lbs.
Ewes over 130 lbs.
Long, pendulous scrotal sacks on rams
Large, loosely attached udders on ewes
Excessively large teats on ewes
Fleeces grading 60 Bradford count or higher
Fleeces grading 40 Bradford count or lower
Double coating
More than 85% colored markings
Less than 15% colored markings
Short, brittle fleeces with heavy kemp
Fleeces on adult sheep which shed
Fleeces weighing 8 lbs. or more
Excessive quilted appearance to the fleece (where the dark fiber are shorter than the white or vice versa)
Excessive freckling in the white wool of young animals

For more information on JSBA contact: JSBA Information
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copyright © 2004 Jacob Sheep Breeders Association
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Last modified: March 2004