US 11,230,590 B2 · Hyperimmunized egg product for treatment of necrotic enteritis in poultry

Abstract

In one aspect, the present invention is directed to a method for preventing or treating necrotic enteritis by administering a hyperimmunized egg product obtained from an egg-producing animal to an avian. The hyperimmunized egg product may contain an antibody specific to an antigen selected from the group consisting of Clostridium perfringens α-toxin, Clostridium perfringens elongation factor Tu (EF-Tu), Clostridium perfringens necrotic enteritis B-like (NetB) toxin, Clostridium perfringens Pyruvate: Ferredoxin oxidoreductase (PFO), and Eimeria tenella elongation factor 1-alpha.

Claims9

Dependent claims

A hyperimmunized egg produced by an animal that has been hyperimmunized with at least one isolated antigen selected from the group consisting of Clostridium perfringens α-toxin, Clostridium perfringens elongation factor Tu (EF-Tu), Clostridium perfringens necrotic enteritis B-like (NetB) toxin, Clostridium perfringens Pyruvate:

Ferredoxin oxidoreductase (PFO), and Eimeria tenella elongation factor 1-alpha, wherein the hyperimmunized egg comprises an increased level of an antibody to said at least one antigen of at least 500% relative to an egg from an animal that has not been hyperimmunized.

Dependencies are inferred from the claim text.

Facts

Application

16/574,954Filed 18 Sep 2019 · continuation

Priority

13 Feb 2017

Published

US 2020/0002404 A12 Jan 2020

Granted

25 Jan 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

C07K 16/02
Immunoglobulins [IG], e.g. monoclonal or polyclonal antibodies: from eggs
A23K 10/18
Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions: of live microorganisms
A23K 10/20
Animal feeding-stuffs: from material of animal origin
A23K 50/75
For birds: for poultry

Family

Application62/458,180Us provisional application · filed 13 Feb 2017

Application62/568,932Us provisional application · filed 6 Oct 2017

Application15/895,636Parent of this continuation · filed 13 Feb 2018

US 2020/0002404 A1Pre-grant publication · published 2 Jan 2020

US 10,450,364 B2Parent of this continuation

US 2018/0230199 A1Published application

US 11,230,590 B2This patent

From the US filing history. Foreign family members aren’t listed.

Hyperimmunized egg product for treatment of necrotic enteritis in poultry

Life of this patent

Hyperimmunized egg product for treatment of necrotic enteritis in poultry

Life of this patent

Abstract

Claims9