Breeding Objectives

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Breeding Objectives and Plans
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• Objectives of the Lecture
• Concepts and factors associated with
  developing a breeding plan.
• Describe an applied breeding program that
  utilizes a quantitative and a qualitative trait
  to illustrate activities you must be concerned
  with.

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Your Position / Assignment

• Production Agriculturalist
• Private Farmer
• Wildlife Conservationist
• Re-establishment of Endangered Species

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Breeding Objective(s)

• Enhance the current animals performance -
  milk yield, calving ease, litter size,
  livability, feed conversion efficiency....
• Capitalize upon a mutation (hairless cat)
• Create a nucleus of breeding animals for
  reintroduction to the wild

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• Breeding Plan
• Type of trait - Qualitative, autosomal
  sex-linked,
• single locus or multiple,
• expressivity and
  penetrance,
• pleiotropy.
• - Quantitative, heritability (low,
  medium, high)
• easy to select for?
• 
  known genetic correlations

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Breeding Plan.... Adequate Resources Available
? Market Genetics (Numbers
available) Physical (buildings, land,
isolation) Competent labor
Financial Time to develop
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Breeding Plan.... Mating System - Mass Mating
versus Pedigree Determined by the
type of trait Record Keeping - What records to
maintain, and where? --Maintain a
journal of primary activities, daily
basis
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Record Keeping..... Types of records, -
Birth, death (incl. COD), Cull (and reason),
Parentage, Vaccinations (when,
type, lot s) - Mating, AI, Animal
Disposition - Identification scheme (keep a
copy at a different location)
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Animal Pedigree Identification System

• Purpose of Identification,
  avoid - genetic errors,
  potentially unwanted inbreeding, ability to
  differentiate between lines...
• Methods Available,
• appropriate for the animal, not injurious, will
  not cause chronic discomfort, allows for easy
  identification of the animal

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• Types of Animal Pedigree Identification...
• Ear/ Skin Tattoos
• Fire / Freeze Branding
• Plastic / Metal Ear Tags
• Ear Notching System
• Wing Banding, Toe Clipping, Web Cutting
• Bar Coding with subcutaneous implants

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Bio Security
Keep Out
Restricted Area No Admittance
What is it ? Do you Need it ? Types of
Pathogens to be Concerned about.