USE OF ACID STABLE PROTEASES IN ANIMAL FEED, PREFERABLY TO INCREASE PERFORMANCE OF COCC-VACCINATED BROILER CHICKENS
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Nov 19, 2012
filing date -
Nov 17, 2011
priority date (Note) -
Abandoned
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Abstract
The invention relates to the use of at least one acid stable protease in poultry feed in combination with anti-coccidial vaccination of birds for increasing the performance of vaccinated animals. It has been found surprisingly that the additions of at least one acid stable protease according to the invention to the diet of “cocci”-vaccinated birds have a significant improvement of animal performance. The inventors found that especially the use of serin proteases improve the performance of vaccinated broiler chickens, in particular the use of serin proteases increases weight gain and improves Feed Conversion Ratio (FCR) of cocci-vaccinated birds.
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