Calcium Requirement of the Baby Pig

Influence of Age, Sex and Calcium and Phosphorus Levels on the Mechanical Properties of Various Bones in Swine

“…When pooled across bone and sex, the data indicate that the feeding of higher levels of Ca,P resulted in an increase in the mechanical properties (bending moment, ultimate stress, yield stress and modulus of elasticity), geometrical measurements (moment of inertia and wall thickness) and percentage of ash of bones (table 3). Other researchers have also reported an increase in bone strength due to an increase in the level of Ca and P fed (Miller et al, 1962(Miller et al, , 1964Libal et al, 1969;Cromwell et al, 1972;Tanksley et al, 1976;Nimmo et al, 1980). Interactions did occur which indicated that the response of each bone to Ca,P level was not the same across the age periods evaluated in this study.…”

Influence of Calcium and Phosphorus on Growth and Skeletal Development of Growing Swine

“…In animals fed ration 9 (LCa-HP), facial bones lacked normal density and in some cases ribs could be broken very easily. In general, gross skeletal changes were less severe than those described by Chapman et al (1962), Miller et al (1962) or Brown et al (1966). This was thought to be related to differences in levels of calcium and phosphorus fed, differences in the initial age of experimental animals and differences in the duration of the experiment.…”

“…Rutledge et al (1961) and Miller et al (1962Miller et al ( , 1964 Storts and Koestner 1965;Brown et al 1966), others (Miller et al 1962) Fiske and Subbarow (1925) and Gomori (1942). An EDTA titration merhod was used for total serum calcium determinations (Golby et al 1957).…”

Effect of Various Levels of Dietary Calcium and Phosphorus on Performance, Blood and Bone Parameters in Growing Boars

“…The limiting factor in their work appeared to be P, which was maintained at .50%. Several other studies do not support these results (Chapman et al, 1962;Combs and Wallace, 1962;Miller et al, 1962;Zimmerman et al, 1963). However, the latter trials did not involve boars, and P was not a limiting factor.…”