Abstract: An improved poultry feed supplement is provided by homogeneously mixing together, preferably utilizing both rotary and lateral oscillatory motions, waste lime from a sugar refining process and not in excess of about 20% of nutritive agglomerating constituent selected from the group consisting of beet molasses, cane molasses, wood molasses, citrus molasses, corn steep liquor, invert sugar solution and mixtures thereof. The moisture content of the mix is adjusted, if necessary, during mixing to about 18 to 23 weight percent, preferably about 21 weight percent, and the resulting mixture preferably is formed into pellets of an average diameter of about 1/16", which pellets are then dried to a hard stable form, with a moisture content of, for example, about 0 to 4 weight percent. The feed supplement is used to improve the strength of poultry egg shells. The supplement is simple, efficient and inexpensive to make and use.