hi ,
if the cows peak production at the inital stage of lactation is 10 lts it will decrease slowley, might be at end of 300 days we will be getting only 1 liter per day , so the peak period will last for say three months and it will start reducing a ltr every month so the point of 3000 lits we cant get we can expect about 1800 + lts and rest based on your cow maintainace. the rate for the milk is base on your marketing skills, if you are suppling to milk societys based on the FAT and SNF the rate will be fixed in my exp. we can get Max of 14 to 15 if we have a fat greater than 4.1 and snf 8 +, but in case you are marketing to the direct consumer you hit the jack pot, can sell for Rs20 per lts without worrying abt Fat and SNF.Just sharing my Exp.
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Srikumar.g