<B>descripción y comparación de los procesos infecciosos, víricos y metabólicos que afectan el sistema óseo de los pollos de engorda</b>

Abstract

Metabolic, bacterial and viral diseases have become the main threats within poultry industries, putting their productivity at risk. One of the most important problems in poultry farming originates from feeding factors and poor handling, turning into metabolic problems, either due to deficiencies and excess of vitamins and minerals, for which they have a direct impact on the bone system. , impairing development, decalcification of chicken bones and deformations. These defects become pathological fractures due to hypovitaminosis A, D, calcium (Ca), phosphorus (P), magnesium (mg) and zinc, causing a perosis that triggers the deformation of the metatarsal joints , tarsus, tibia, of the extremities of chickens. Bacteria and viruses also trigger locomotor problems that are relatively frequent, but the cause of claudication and immobility is not easily found, so a complete anatomical examination must be carried out in order to find macroscopic lesions that explain the phenomenon. Bacteria such as Staphylococcus spp, Enterococcus, Escherichia coli and Mycoplasma synoviae are related to the same disease in chicken, causing joint damage, inflammation of the tendon sheath and subchondral bone. Within viral diseases such as viral arthritis or also known as viral tenosynovitis, it is caused by reovirus that produces the same pathological conditions, but with characteristics of swelling and inflammation of the joint, gastrocnemius tendon injuries and digital flexors.