TUCKER, Ga. — Spotty Liver Disease (SLD) manifests as acute infectious hepatitis and causes a significant drop in egg production of up to 35 percent, with a mortality rate as high as 15 percent.
Even after recovery from SLD, egg production of layers could remain depressed by up to 22 percent compared to pre-outbreak levels. Due to the great economic losses incurred by SLD, it has become an important concern for the egg industry. SLD was first reported in the 1950s but disappeared in the 1980s when all flocks were almost always grown in cages.
However, SLD re-emerged recently. . .
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