A. Dairy Cattle Body Scoring “Hooks and Pins” There are 2 terms that I think you should be familiar with when evaluating the body condition of cattle, especially dairy cows. The tuber coxae are known as the “hooks” and the tuber ischii are known as the “pins”. Hooks and pins are bony points of reference on the pelvis. They can be used for measurements, for example the height of a steer calf at the hook at a certain age can give you some idea of its potential frame size and rate of weight gain so that you don't under- or over-feed. They're also used in body condition scoring and show judging for conformation. In cattle, the hook is the front-most outside curve of the pelvis, the pin is the rear point, just below and outside the tail. On a human that would correspond to the top of the hip you can feel just below the waist to the pointy prominence you sit on. B. Identify “hooks and pins” Can you identify the “hook” and the “pin” from this photo? C. Equine Front Limb Identify the following on the equine front limb skeleton: ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ Scapula Spine of Scapula Infraspinatous fossa Supraspinatous fossa Humerus Olecranon Process Radius Ulna Accessory Carpal Bone Carpus (Carpal Bones) Metacarpal III - lay term is _________ bone Metacarpal II - lay term is _________ bone Metacarpal IV - lay term is _________ bone Metacarpal bones are number 2-4 are numbered (circle the correct answer) A. Medial to lateral B. Lateral to medial Proximal sesamoid bones Proximal phalanx (P1) - lay term is _________________ Middle phalanx (P2) - lay term is _________________ Distal phalanx (P3) - lay term is _________________ Distal Sesamoid bones - lay term is _________________ Fetlock Joint Pastern Joint Coffin Joint C. Equine Rear Limb Identify the following on the equine rear limb skeleton. ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏ Head of the femur Femur Patella Fibula Tibia Calcaneus Tarsus (Tarsal Bones) Metacarpal III lay term is _________ bone Metacarpal II lay term is _________ bone Metacarpal IV lay term is _________ bone Metacarpal bones are number 2-4 are numbered (circle the correct answer) D. Medial to lateral E. Lateral to medial Proximal sesamoid bones Proximal phalanx (P1) lay term is _________________ Middle phalanx (P2) lay term is _________________ Distal phalanx (P3) lay term is _________________ Distal Sesamoid bones lay term is __________________ Fetlock Joint Pastern Joint Coffin Joint Test Your Knowledge A. Circle and name each joint above B. Give the lay terms for P1, P2, and P3 C. What bones of this equine limb can you label on this picture? First, you need to identify if this is a front or hind limb. D. What bones can you label on this equine limb. First, you need to identify whether this is a front or rear limb.
