It's one thing knowing the DNA sequence, it's even harder determining which sequence composes genes and which is nonsense DNA (the vast vast majority), but it's another animal entirely trying to determine the function and mechanism of expression of genes. In most cases, this is not something you can send a DNA sample to a university or Vet school and have done quickly or cheaply. In some cases it can take many years and incredible amounts of money for a single gene.
They are trying to do this in China right now with mice. They are using hundreds of thousands of mice each with only a single different gene knocked out in hopes of understanding what that gene does. It is costing the Chinese government hundreds of millions of dollars and they are flying in top genetics PhDs from around the world. It's an incredible project but also gives an idea of what it takes.
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