Roberts, J R <br/><br/>
Effects of commercial enzyme preparations on egg and eggshell quality in laying hens.  [electronic resource] 

 -  British poultry science  Aug 2006 
 - 501-10 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0007-1668 
<br/><br/><label>Standard No.: </label>10.1080/00071660600834175  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal Feed--analysis<br/>Animal Nutritional Physiological Phenomena<br/>Animals<br/>Chickens--genetics<br/>Diet--veterinary<br/>Dietary Supplements<br/>Edible Grain<br/>Egg Shell--drug effects<br/>Eggs--standards<br/>Enzymes--pharmacology<br/>Female<br/>Hordeum<br/>Oviposition--drug effects<br/>Triticum