What question did this study set out to answer?

To evaluate the impact of sire genetics and straight-run versus sex-separate rearing on the incidence of bacterial chondronecrosis with osteomyelitis in commercial broilers.

May 9, 2014Poultry ScienceOpen Access

Bacterial chondronecrosis with osteomyelitis in broilers: Influence of sires and straight-run versus sex-separate rearing

View Full Paper

Ask AI

Bookmark

To evaluate the impact of sire genetics and straight-run versus sex-separate rearing on the incidence of bacterial chondronecrosis with osteomyelitis in commercial broilers.
Conducted two experiments (E1 with 65 birds/pen; E2 with 60 birds/pen) comparing two sire crosses (sire A vs. B on dam C) reared straight-run or sex-separated on litter or flat wire flooring.
Performed necropsies on lame birds through 8 weeks of age to confirm pathognomonic lesions and analyzed cumulative incidence differences using the SigmaStat Z-test.
Pooled across sexes, sire A broilers developed significantly higher cumulative incidences of BCO than sire B broilers in E1 (21.4 vs. 14.9%, P = 0.005) and E2 (26.5 vs. 18.7%, P = 0.003).
Rearing broilers straight-run versus sex-separated did not significantly alter BCO rates, and litter-reared birds maintained low incidence rates regardless of cross or sex (1.7 to 5.1%, P ≥ 0.6).
Significant BCO developed after day 40, with lame birds showing high rates of femoral head necrosis (66 to 85%) and tibial head necrosis (81 to 96%).

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Experimental study reveals significant sire line differences in broiler susceptibility to bacterial chondronecrosis with osteomyelitis, suggesting genetics can mitigate lameness.

Cite This Study

Wideman et al. (2014) studied this question.

synapsesocial.com/papers/6a998d27d4ecc439fa157c3d https://doi.org/10.3382/ps.2014-03912

View Full Paper

Ask AI

Bookmark

Implication

Experimental study reveals significant sire line differences in broiler susceptibility to bacterial chondronecrosis with osteomyelitis, suggesting genetics can mitigate lameness.

Bacterial chondronecrosis with osteomyelitis in broilers: Influence of sires and straight-run versus sex-separate rearing

Key Points

Discussion

Implication

Cite This Study

Bacterial chondronecrosis with osteomyelitis in broilers: Influence of sires and straight-run versus sex-separate rearing

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider