converting website visitors

ThePoultrySite.com - news, features, articles and disease information for the poultry industry

ThePoultrySite Quick Disease Guide

Disease:
Use the above box to quickly switch to another disease

Osteoporosis, Cage Fatigue


Extracted From:
A Pocket Guide to
Poultry Health
and
Disease
Order me a copy
By Paul McMullin
© 2004
Click Here to
Order Your Copy

Introduction

A condition of chickens, turkeys and ducks seen worldwide and due to Vitamin D or calcium deficiency. Predisposing factors include small body size, high production.

Signs

  • Lameness.
  • Soft bones and beak.
  • Birds go off legs.
  • Drop in production.
  • Soft-shelled eggs.
  • Enlarged hocks.
  • Birds rest squatting.

Post-mortem lesions

  • Bones soft and rubbery.
  • Epiphyses of long bones enlarged.
  • Beading and fracture of ribs.
  • Beak soft.
  • Parathyroids enlarged.

Diagnosis

History, signs, lesions, bone ash. Differentiate from Marek's disease, spondylitis.

Treatment

Over-correct ration vitamin D, calcium carbonate capsules, place on litter.

Prevention

Supplementation of vitamin D, proper Ca and P levels and ratio, antioxidants. As birds progressively mobilise skeletal calcium for egg production through lay, skeletal size and mineral content at point of lay are critical.

Our Sponsors

Partners


Seasonal Picks

Poultry Breeds and Management