The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 1991
Filed:
Feb. 14, 1989
Applicant:
Inventors:
Benjamin Borenstein, Teaneck, NJ (US);
William J Mergens, West Caldwell, NJ (US);
Govind G Untawale, Wayne, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
A23L / ;
U.S. Cl.
CPC ...
426 73 ; 426-2 ; 426311 ; 514167 ; 424442 ;
Abstract
Poultry feed premixes and finished poultry feeds which contain particles comprising a Vitamin D.sub.3 metabolite and Vitamin D.sub.3 in a weight ratio ranging from about 1:2.5 to about 1:125 are described. These premixes and feeds are useful for promoting egg shell strength and bone strength in older egg laying hens as well as to provide to such hens the usual benefits of Vitamin D.sub.3 in a diet. The invention also relates to methods for improving egg shell strength in older egg laying hens which comprise administering to hens such particles.