Cow 20 l milk

For a cow giving twenty liters, HF cross or Jersey cross is usually the best fit, and a good Sahiwal or Gir can also work if you want stronger heat tolerance. Check the cow in your presence, milk her before paying, do a CMT test on all four quarters, and ask which month of lactation she is in. If she is in month seven or eight, yield will drop soon. For steady twenty liters, two cows with staggered calvings are safer than one.