Decreased production in broiler breeders due to tendon rupture by Mycoplasma synoviae

Abstract

ABSTRACT. An outbreak of lameness occurred in a broiler breeder flock (30,000 birds into four houses) of a multi-age farm, with a total of two broiler breeder flocks (60,000 birds in total). The leg lesions began soon after facilities transfer between 22 and 24 weeks of age and persisted for the rest of the flock's life, until 64 weeks of age. Post-mortem examination at the farm revealed arthritis lesions and synovitis affecting the hock joint and the foot pads. Mycoplasma synoviae was detected in birds from the affected flock by serologic and molecular techniques. Treatments with fluoroquinolones in drinking water reduced the number of cases, but morbidity continued and affected the standard production rates.

Molecular characterization and antimicrobial susceptible profiles of Thai mycoplasma synoviae and immune response chickens received live mycoplasma synoviae vaccine

“…In addition to the respiratory tract and arthropathic infection, the oviduct infection is able to induce eggshell apex abnormalities presenting an altered thinning translucent eggshell surface with easily crack or break (Lockaby et al, 1998;Kleven and Ferguson-Noel, 2008;Feberwee et al, 2009a;Feberwee et al, 2009b;Pakpinyo et al, 2009;Landman, 2014). The economic losses from eggshell apex abnormalities could occur both at the farm level and at the egg packing station due to breakage of eggs, downgrading and labor costs for eggs selection (Landman, 2014;Moreiraa et al, 2014).…”