MEDLINE Journals

    Leg abnormality associated with dietary excessive calcium carbonate in broiler chicks.

    Ogura Y 
    Natl Inst Anim Health Q (Tokyo) 1981; 21(3) :141-7.

    When chicks were fed excessive CaCo3, some of them manifested the toes and legs bent in an abnormal direction and final inability to walk in proportion to the dose of calcium. However, chicks fed CaHPO4 containing the same dose of Ca, instead of CaCO3, showed no abnormality of the legs. The leg abnormality of chicks fed excessive CaCO3 resembled the symptom of chicks fed a vitamin D-deficient diet, but there slight differences in serum Ca level and in the findings of the legs by roentgenography between both chick groups. In the radiograph of chicks fed excessive CaCO3, definite radiolucent area were found in all the bone joints related with poor mineralization. Furthermore, a slight elevation of Ca concentration, a decrease in inorganic phosphorous concentration and a remarkable increase in alkaline phosphatase activity were found in the sera of the chicks fed excessive CaCO3. In these chicks were observed the hypertrophic cartilage at the end of bones and an increase in osteoid seams at the diaphysis in the non-decalcified bone section. The findings described above suggested that an excessive Ca supply to chicks might cause a disturbance in P metabolism and produce hypophosphatemic rickets.

    Animals, Newborn
    Bone Diseases, Metabolic
    Calcium Carbonate
    Poultry Diseases
    Vitamin D Deficiency


    Pub Type(s)
    Journal Article
    PubMed ID


    Content Manager
    Related Content

    Experimental rickets in broilers: gross, microscopic, and radiographic lesions. III. Vitamin D deficiency.

    Effect of the level of cholecalciferol supplementation of broiler breeder hen diets on the performance and bone abnormalities of the progeny fed diets containing various levels of calcium or 25-hydroxycholecalciferol.

    Effects of vitamin D3 dietary supplementation of broiler breeder hens on the performance and bone abnormalities of the progeny.

    Effect of calcium carbonate particle size on the available phosphorus requirement of broiler chicks.

    Pathology of experimental vitamin D deficiency in chickens and effects of treatment with vitamin D metabolites.

    The effect of feeding calcium- and phosphorus-deficient diets to broiler chickens during the starting and growing-finishing phases on carcass quality.

    The effect of breeder age and egg storage time on phosphorus utilization by broiler progeny fed a phosphorus deficiency diet with 1alpha-OH vitamin D3.

    Intestinal calcium absorption and bone morphology in magnesium deficient chicks.