Question:  query regarding  a cow showing  the signs of decrease milk production 
Answer:  give  ostocalcium with vimeral- orally  as directed /   papaya & smooth guard can be incorporate 1-2 kg depending upon the age, size & production of the mentioned cow / infuse intalyte i/ v ly / mineral mixture -10-15 gm orally, daily with feed, green grass & water  ad libitum dauly