Ayurvet Limited offers Strip for Milk Examination in Cattle. Ayurvet Limited, formerly known as Dabur Ayurvet Limited is an ISO-9001:2000 certified company. The Strip for Milk Examination in Cattle, also known as Mastrip falls in the category of Cattle Herbal Health Care Products. This is a Cellulose based Bromothymol Blue [BTB] strip impregnated with stabilized ion sensitive indicator for detection of sub - clinical mastitis. The Strip for Milk Examination in Cattle indicates four colours; Yellow for normal; Greenish Yellow for sub-clinical mastitis; Green for advanced sub-clinical mastitis; and Blue for clinical mastitis.