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Introduction to Sheep Selection. Created By: Kenneth Geuns Updated By: Megan Kay. Objectives. Discuss criteria sheep selection. Identify structural correctness and reproductive correctness. Evaluate the frame and growth, breed differences, muscle, volume and growth. - PowerPoint PPT Presentation
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Created By: Kenneth GeunsUpdated By: Megan Kay
Introduction to Sheep Selection
ObjectivesDiscuss criteria sheep selection.Identify structural correctness and
reproductive correctness.Evaluate the frame and growth, breed
differences, muscle, volume and growth.
Criteria for Sheep SelectionSoundness
StructuralReproductive
Frame and GrowthVolume and CapacityMuscleBreed Character
Structural CorrectnessCorrect joint angles
Shoulder, knee, hock and pasternStrong top Level rump structureLarge, square footAdequate bone
Structurally Correct Ram
Structurally Correct Ram
Structurally Correct Ram
Structural Incorrectness
Reproductive CorrectnessDeveloped vulva on femalesCorrect testicle development and shape on
males
Frame and GrowthLarger framed sheep will be later maturing
and stay leanerLarger framed sheep will be growthierLong fronted, long necked desirableCorrect frontends most critical in sheep
Smooth shoulderCorrect neck - shoulder junction
Large framedLong bodied
Small framedShort bodied
Breed Differences
Southdown Cheviot
Volume and CapacityCritical for feeding and breeding capacityFleshing ability critical in ewe flockDeep, bold sprung rib cageWide chested and wide based
Volume and Capacity
MuscleEvaluated through the rump and topCritical in all meat animal production
Breed CharacterMore highly emphasized than on hogs or
cattleSubjective evaluation on many breeds
Suffolk Breed CharacterBlack head and legs free from woolLong, pendulous bell-shaped earRoman nose
ReviewDiscuss criteria sheep selection.Identify structural correctness and
reproductive correctness.Evaluate the frame and growth, breed
differences, muscle, volume and growth.