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Effects Of A Premolt Calcium And Low-Energy Molt Program On Laying Hen Performance, Egg Quality, And Economics, Emily R. Dickey, Anna Johnson, Kenneth J. Stalder, Kristjan Bregendahl Feb 2012

Effects Of A Premolt Calcium And Low-Energy Molt Program On Laying Hen Performance, Egg Quality, And Economics, Emily R. Dickey, Anna Johnson, Kenneth J. Stalder, Kristjan Bregendahl

Animal Science Publications

The objectives of this study were to evaluate and compare the effects of production, physiology, egg quality, and economics of laying hens housed in a cage system when offered a calcium premolt treatment and low-energy molt diets versus a traditional feed withdrawal (FW) treatment during and after molt. In total, 981 Hy-Line W-36 laying hens (85 wk of age) housed 3 per cage were used. Six treatments were compared in a 2 × 3 factorial design with 2 calcium premolt treatments (fine and coarse) and 3 molt diets (FW, soybean hulls, and wheat middlings). The coarse Ca was a 50:50 ...