Select a board and press it down on the upper part of the hip joint.

1. Lie the sick animal in Baoding, with the affected limb upward and the two forelimbs tied.

2. Use a wooden board with one end against the protruding femoral head. At the lower end of 1/2 in front of the board, a stone or other object is used to support the board as a fulcrum in the lever. One person presses down hard at the end of the board or steps on it with his foot to facilitate the reduction of the femoral head.

Cows usually have two or three calves a year, sometimes two calves every three years.