（1） The imported backfat analyzer divides the entire body of cattle into four major parts: head and neck, forelimb, midbody, and hindbody.

(1) The head and neck are located at the forefront of the body, and are separated from the body by the line connecting the tip of the bun and the shoulder. Including the head and neck parts

(2) The forelimb is located behind the neck and before the vertical tangent of the scapula, while the body surface based on the bones of the forelimbs includes the main parts such as the carapace, forelimbs, and chest.

(3) The midbody is the middle section of the body behind the shoulders and arms, before the waist angle and thighs, including the back, waist, chest (ribs), and abdomen.

(4) The hindquarters, located at the front edge of the waist angle and dividing from the midbody, serve as the posterior end of the body. They are a surface area based on the sacrum and hindlimb bones, including the jiri, buttocks, hindlimbs, tail, breasts, and reproductive organs.

Imported backfat analyzer

（2） The basic requirement for using an imported backfat analyzer to identify the appearance of cattle is mainly to observe the appearance of the cattle with the naked eye. In some cases, it is also necessary to use body measurements and hand touch to identify various parts and the whole body of the cattle.

When observing the appearance of a cow with the naked eye and conducting body measurements, the identified cow should naturally stand on a wide and flat square. Firstly, the discriminator stands at a distance of 5-8m from the cow and conducts a general observation, looking around the entire body to have a contour understanding and grasp whether the development of various parts of the cow's body is symmetrical; Then stand in front of the cow, observe from the side, and smell from behind. The imported backfat analyzer can observe the structure of the head, the width of the chest and waist, the expansion of the ribs, and the limb posture of the forelimbs from the front; Observe the depth of the chest from the side, the overall body shape, the inclination of the shoulders and hips, the length of the neck, back, waist, and hips, the development of the breasts, and whether each part is symmetrical; Observe the volume of the resting body and the development of the lower body from behind. After observing with the naked eye, if necessary, touch the cow's body with your hands to understand the development of its skin, subcutaneous tissue (fat), muscles, backbone, hair, horns, and breasts. Finally, allow the cow to walk freely and observe the movements, postures, and gait of its limbs, as well as their coordination with each other.

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