1-2 days will be produced. Generally, if the water gate of cattle is swollen and transparent mucus flows out and hangs on the gate, it will be produced within 1-2 days. The gestation period of cattle is 270-290 days, so we can calculate the production date of buffalo according to the breeding date, and make preparations in advance to help cattle produce smoothly. Generally, if the water gate of cattle is swollen and transparent mucus flows out and hangs on the gate, it will be produced within 1-2 days. The gestation period of cattle is 270-290 days, so we can calculate the production date of buffalo according to the breeding date, and make preparations in advance to help cattle produce smoothly.