When laying hens are given veterinary drugs, residues will almost inevitably appear in the eggs. The compartmental separation of residues between yolk and white appears to depend on the structure and lipid solubility of the drug, the dose and extent of exposure
This article can also be found at World Poultry Volume 17 number 2. To view the article online simply click on the link below.
Keywords: nutrition, betaine, feed, additives, ingredients