FODDER ADDITIVE OF FRESH-WATER ANADONTA AND UNIO GENERA SEASHELLS FOR LAYING HENS Russian patent published in 2014 - IPC A23K1/16 

FIELD: food industry.

SUBSTANCE: invention relates to farm industry and, in particular, may be used in poultry breeding during laying hens breeding. The biologically active fodder additive for hens consists of sunflower extraction cake, maize gluten, fresh-water Anadonta and Unio genera seashells shell crumb and meat, vitaminous grass meal based on camel thorn leaves and stems and culinary salt. All the components are taken at the specified ratio.

EFFECT: invention implementation ensures enhancement of hens preservation, body weight gain and egg-laying capacity, ensures reduction of the fodder expenditure on eggs formation, promotes increase of laying hens egg-laying capacity, allows to increase performance, quality of the products and reduce the poultry breeding prime cost due to the fodder usage in the ration.