| 1 | Anteroposterior (AP) or Ventrodorsal (VD) Projection | Standard projection | Provides the principal frontal image for routine assessment of bone alignment, length, and overall mineralization. | Long-bone shafts, joint spaces, cortical margins, and general skeletal symmetry. | Fractures, angular deformity, bone shortening, abnormal mineral density, and gross joint displacement. | Femur, tibia, tarsometatarsus, wing bones, and whole-bird skeletal surveys. | Look for consistent exposure control, a suitable detector area, and positioning accessories for small poultry specimens. |
| 2 | Mediolateral or Lateromedial Projection | Standard projection | Supplies a side view that complements the frontal image and reduces the risk of missing displacement in the depth plane. | Bone thickness, cranial and caudal cortices, joint congruity, and fracture angulation. | Overlapping fractures, luxation, callus formation, cortical irregularity, and sagittal displacement. | Femur, tibia, humerus, radius, ulna, and lower-leg joints. | A narrow field of view and accurate collimation are useful for improving contrast and limiting scatter. |
| 3 | Oblique Projection | Specialized projection | Rotates the specimen to separate superimposed structures that may be hidden on AP/VD and lateral views. | Articular surfaces, condyles, thin cortical boundaries, and complex portions of the wing and leg. | Small fissures, subtle cortical defects, incomplete fractures, mineralized lesions, and joint-surface abnormalities. | Elbow, knee, ankle, shoulder, hip, and small bones of the distal limbs. | Choose systems that support repeatable positioning angles and stable specimen fixation. |
| 4 | Craniocaudal and Caudocranial Projection | Joint projection | Shows selected joints and limb segments from the cranial or caudal direction for improved assessment of alignment. | Joint spaces, trochlear regions, condyles, proximal limb ends, and paired cortical margins. | Joint incongruity, epiphyseal irregularity, growth-related deformity, and transverse fracture displacement. | Stifle, tarsal joint, shoulder, elbow, and proximal or distal long-bone regions. | Useful equipment should allow precise limb positioning and clear imaging of small joint spaces. |
| 5 | Horizontal-Beam Lateral Projection | Trauma projection | Captures a lateral image while the specimen remains supported, helping evaluate fluid levels and displaced fragments. | Fracture sites, joint spaces, and soft-tissue margins adjacent to injured bones. | Acute fracture displacement, joint effusion, soft-tissue swelling, and gas or fluid interfaces. | Traumatized limbs, immobilized specimens, and cases where conventional positioning is impractical. | Prioritize adjustable tube-detector geometry, safe specimen support, and reliable low-exposure imaging. |
| 6 | Stress or Loaded Projection | Functional projection | Images a joint or limb under controlled positioning or load to reveal instability that may not appear in a neutral view. | Joint alignment, ligament-supported spaces, angular relationships, and weight-bearing segments. | Dynamic instability, abnormal joint opening, malalignment, and subtle displacement. | Stifle, hock, hip, wing joints, and legs used in biomechanics or veterinary research. | Use only with an appropriate positioning fixture and a protocol that applies repeatable, controlled force. |
| 7 | Whole-Skeleton Survey Radiography | Screening examination | Provides a broad overview of the axial and appendicular skeleton for screening and comparative studies. | Spine, pelvis, ribs, wings, legs, bone length, and overall skeletal symmetry. | Multiple fractures, generalized mineralization changes, severe deformity, developmental abnormalities, and asymmetry. | Intact chicken carcasses, research specimens, hatchling studies, and comparative poultry samples. | A large detector, uniform exposure, image stitching capability, and a stable flat positioning surface are advantageous. |
| 8 | Digital Radiography (DR) | Digital detector method | Creates an electronic projection image for rapid review, storage, measurement, and image processing. | Most chicken bones visible on conventional projection images, including cortical margins and joint regions. | Fractures, deformities, radiolucent areas, increased opacity, and changes in bone alignment. | Routine laboratory examinations, veterinary diagnostics, quality-control sampling, and research workflows. | Evaluate detector size, pixel pitch, exposure latitude, image-processing controls, software compatibility, and service support. |
| 9 | Micro-Computed Tomography (Micro-CT) | 3D high-detail imaging | Generates cross-sectional and three-dimensional images for detailed analysis of internal bone architecture. | Trabecular pattern, cortical thickness, medullary cavity, mineralized callus, and complex joint anatomy. | Microfractures, porosity, trabecular loss, cortical defects, healing architecture, and small structural lesions. | Excised chicken bones, small bone segments, embryos, and fixed research specimens. | Consider voxel size, specimen chamber dimensions, reconstruction software, radiation shielding, and ex vivo workflow requirements. |
| 10 | Fluoroscopic X-Ray Imaging | Real-time imaging | Displays continuous or pulsed X-ray images to observe movement, positioning, or contrast-flow behavior in real time. | Moving joints, skeletal articulation, alignment during manipulation, and selected dynamic anatomical relationships. | Functional instability, abnormal motion, movement-related impingement, and changes that are difficult to interpret from static images. | Live poultry research, biomechanical studies, procedural guidance, and controlled motion experiments. | Review pulse rate, image intensifier or flat-panel performance, dose management, field size, and operator protection features. |