title: Effect of biotin and niacin on lipid content of livers in the laying hen.
abstract: Single Comb White Leghorn layers maintained in cages were fed a corn-soy diet with a simplified vitamin premix for a 12-week experimental period to determine the effect on liver lipid accumulation. Lipid content was only 29.6% of the liver dry matter and, therefore, was in the normal range and less than that seen in hens with fatty liver syndrome. Adding niacin (44 mg./kg.) or biotin (110 mug./kg.) either alone or in combination failed to significantly alter liver weight or liver lipid content. Liver lipid content of hens fed another diet with a more complex vitamin premix also was not significantly different from that of hens fed the diet with the simplified vitamin premix. None of the diets significantly affected egg production, egg weight, feed consumption or body weight changes observed over the 12-week period.
mesh_terms: D000821:Animal Feed; D000818:Animals; D001710:Biotin / Q000378:metabolism*; D002645:Chickens / Q000378:metabolism*; D005260:Female; D050356:Lipid Metabolism; D008099:Liver / Q000378:metabolism*; D009539:Nicotinic Acids / Q000378:metabolism*; D010058:Oviposition; D013025:Glycine max; D003313:Zea mays
chemical_list: D009539:Nicotinic Acids; D001710:Biotin