animal husbandry

• AI: 

  1. Select male and harvest semen 
  2. Store cryogenically 
  3. Transport semen to farm
  4. Insert semen into female 
  5. Female develops offspring 
• Embryo transfer:

  1. Select female 
  2. Inject with FSH to stimulate production of ovum 
  3. Artificially inseminate to fertilise ovum 
  4. Flush out embryos from uterus 
  5. Insert embryos into surrogate females
• Vegetative propagation:

  1. Select a plant 
  2. Take a cutting 
  3. Plants are genetically identical 
  4. No introduction of unwanted genes.
• Disadvantages:

  • Few offspring 
  • No genetic variation 
  • Disease can transfer from parent 
• Cloning:

  • Animal A is the donor and remove DNA
  • Animal B is the surrogate, remove the nucleus from an egg cell and insert DNA from donor