When do sika deer lose their horns?

When the male deer grows to 1 year old, velvet antler will grow on his head, and in autumn, the outer layer of velvet antler will fall off and ossify into horns. The first long horn is short and straight. Antlers will fall off in the late spring of the following year, grow antler again, and then ossify into horns in autumn. This time, the long horn will diverge and become two sharp corners. In the future, the antlers will fall off every year, grow again, and then divide into a fork until they are four or five forks. The coat color ............ changes with the seasons. In summer, the body hair is brown or chestnut red, and there is no fluff. There are many white spots arranged in order on both sides of the back and the lower edge of the body, which are shaped like plum blossoms, hence the name. In winter, the body hair is smoky brown, and the white spots are not obvious, which is similar to the color of hay. The neck and the back of the ear are grayish brown, and a black back midline extends from the tip of the ear to the root of the tail. The abdomen is white, with white patches on the buttocks and black terry around it. The back of the tail is black and the belly is white.