The Sahiwal cows are the heaviest milker cow. These are made to demonstrate the ability to sire fast-growing and small calves that are noted for their hardiness under unfavorable climatic conditions. These ensure high milk yields and resistance against several diseases. Sahiwal cows are the heat tolerant cows, proffered with tick and parasites. These allow for the ease of calving and are offered with longevity. Offered drought resistant cattle can withstand bloating and harmful diseases. They can work in the unfavorable conditions without any exertion.