New farm with sunandini cow

I am planning to start a cow farm with 2 SUNANDINI cow in kerala, kollam. How abot sunandini cow? What is milik yield will I get? I search our district for  Sunandini cow, but I didn’t. Any body know, where do I get SUNANDINI cow in kerala, or do I go to Tamilnadu? And onemore question, regarding to  HAY feeding. In our area very difficult to get HAY. but  I have 3 acre of CO3 grass. Is it ok, the grass cut and dry it then keep it for 3-4 months and give the cow  as HAY?. please put your comments.