Method of producing avian eggs and birds of germ-free status

a technology of avian eggs and status, applied in the field of method of producing avian eggs and birds of germ-free status, can solve the problem of major problems such as external contamination

Inactive Publication Date: 2006-09-14
OVAGEN INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023] As stated above not all of the steps of the method have to be performed in a sterile environment. It is necessary that the step of removing the egg from the parent bird prior to the transfer of the egg to the cloaca in the parent bird is performed in a sterile environment. The advantage of this is that the egg is not contaminated during removal of the egg. Additionally after removing the egg from the parent bird in a sterile environment the steps of incubating the egg in its shell

Problems solved by technology

As an eggshell is porous external contamination is a major problem.
Thus, initially, when the laying birds are produced, they will not form a fl

Method used

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Examples

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Embodiment Construction

[0024] The invention will be more clearly understood from the following description of the method according to the present invention.

[0025] Essentially, what the present invention does is to provide the use of artificially derived eggs from parent birds in the production of eggs and derived birds to give laying birds for the control of micro-organisms. The said eggs and birds are as appropriate to their utility subsequently hatched, reared, maintained and bred, either conventionally, or in some form of isolator or sterile environment.

Method

[0026] Fifty adult female and five adult male chickens of known SPF status were maintained on selected diets and allowed to breed naturally. Timing of egg laying (oviposition) was recorded individually for each female over a two-week period. The mean time of day (time, L) when an egg was laid was calculated for each female. The time of day for L-3h was calculated and the period from L-3 to L was nominated as the derivation interval. This interv...

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PUM

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Abstract

The invention provides a method of rearing a bird of germ-free status. The method comprises housing a bird as a parent bird, surgically removing an egg in its shell from the parent bird prior to transfer of the egg to the cloaca in the parent bird, incubating the egg still in its shell and hatching the egg to produce a laying bird. The invention also relates to the production of avian eggs of germ-free status.

Description

[0001] This is a divisional application of application Ser. No. 10 / 788,338, filed Mar. 1, 2004, which is a continuation-in-part of application Ser. No. 10 / 255,097, filed Sep. 26, 2002.FIELD OF THE INVENTION [0002] The present invention relates to a method of rearing a bird of germ-free status. It further relates to the production of avian eggs of germ-free status. It also relates to a method of producing various eggs and birds. [0003] In this specification, the term “germ-free” is used very broadly and relates to many pathogens and infections that can be carried by birds, particularly, poultry such as chickens and turkeys which are used widely to produce flocks of birds for breeding to produce fertile eggs for commercial production and to produce eggs and meat for human consumption. Further, such eggs and birds are used in the manufacture of a wide range of biological substances including vaccines, fibroblasts and proteins, both for therapeutic and prophylactic use in people and ani...

Claims

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Application Information

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IPC IPC(8): A01K45/00A01K67/02
CPCA01K45/00A01K45/007A01K67/02
Inventor MORAN, LEONARD
Owner OVAGEN INT LTD
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