Taking a native doe and breeding her to an Anglo or Nubian or Saanen island born dairy buck is where most of us has started from,grading up.Not so black and white and really no right or wrong.The sire no matter if Nubian or Saanen really comes down to pedigree.The better his lineage for milk, the better your results.One common with anything dairy at the F1 -50% level is not knowing the outcome.She might produce milk,depends on you meeting her diet needs, but for how long is really the question.You might find that she will only milk for a short time,100-120 days and then dry up.This is in line with meat breeds over dairy.You might find yourself paying more monies for feeds compared to milk produced.In the dairy world,takes a lot more energy for anything dairy to produce milk over birthing.
The long and short of the story here.Those you can afford to buy the best in the beginning,save time and monies in the long run.You can spend years breeding the wrong lines at a great cost to you and still not produce dairy goats that can pay for themselves.Should you know of the better quality bloodlines for the breeds.This is important,as this is your starting point.It can take many long years of grading up to produce dairy goats over meat goats.It will take money to keep looking to buy better sires to keep grading up until you find one that works well for your needs.
Anything 50% is really a wild card.All you can do is wait and see what she gives you for milk.Your typical dairy animals have a lactation of 10 months or 305 days.The yield will vary from goat to goat and depending on feed and management of your goat/s.Some dairy breeds like the Alpine with the right bloodlines will lactation for up to 2 years before they need to be bred again.
Hope this helps
