Method of producing avian eggs and birds of germ-free status
AssigneeOvagen International Limited
InventorLeonard Moran
Life of this patent
Estimating the term…
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.
Claims49
1-16. (canceled)
A method of providing an egg of a specified germ-free status in a sterile environment comprising the steps of:—
- (a) providing a bird of germ-free status comprising the steps of:
- housing a bird as a parent bird;
- removing an egg in its shell from the parent bird prior to transfer of the egg to the cloaca in the parent bird;
- and
- incubating the egg in its shell and hatching the egg to produce a laying bird;
- (b) housing the laying bird;
- (c) using the laying bird to lay the egg;
- and
- (d) removing the egg to another sterile environment.
23-35. (canceled)
A method of providing an egg of a germ-free status in a sterile environment comprising the steps of:—
- (a) providing a bird of germ-free status comprising the steps of:
- obtaining a flock of similar birds all reared under the same conditions;
- housing one of the birds as a parent bird;
- removing an egg from the parent bird prior to transfer of the egg to the cloaca in the parent bird;
- and
- incubating the egg in its shell and hatching the egg to produce a laying bird;
- (b) housing the laying bird;
- (c) using the laying bird to lay the egg;
- and
- (d) removing the egg to another sterile environment.
42-46. (canceled)
A method of providing an egg of a germ-free status in a sterile environment comprising the steps of:—
- (a) providing a bird of germ-free status comprising the steps of:
- obtaining a flock of similar birds all reared under the same conditions;
- housing one of the birds as a parent bird;
- performing a laparotomy incision and tying off the oviduct of the bird at both ends with sutures prior to transfer of the egg to the cloaca in the parent bird;
- transecting the oviduct distal to each suture;
- removing the egg in its shell enclosed in the oviduct;
- sterilizing the oviduct;
- removing the egg;
- sterilizing the exterior of the egg shell;
- and
- incubating the egg and hatching the egg to produce a laying bird;
- (b) housing the laying bird;
- (c) using the laying bird to lay the egg;
- and
- (d) removing the egg to another sterile environment.
A method of providing an egg of a germ-free status comprising the steps of, in a sterile environment:—
- housing a bird as a parent bird;
- removing an egg from the parent bird prior to transfer of the egg to the cloaca in the parent bird;
- incubating the egg and hatching the egg to produce a laying bird;
- testing the laying bird for specific contaminants to provide a measure of the germ-free status;
- housing the laying bird in another sterile environment;
- using the laying bird to lay the egg;
- and
- removing the egg to another sterile environment.
A method of providing an egg of a specified germ-free status comprising the steps of:
- (a) providing a bird of germ-free status comprising the steps of:
- housing a bird as a parent bird;
- in a sterile environment removing an egg in its shell from the parent bird prior to transfer of the egg to the cloaca in the parent bird;
- and
- in a sterile environment incubating the egg in its shell and hatching the egg to produce a laying bird;
- (b) housing the laying bird in a sterile environment;
- and
- (c) using the laying bird to lay the egg in a sterile environment.
A method of providing an egg of a germ-free status comprising the steps of:
- (a) providing a bird of germ-free status comprising obtaining a flock of similar birds all reared under the same conditions;
- housing one of the birds as a parent bird;
- and
- in a sterile environment removing an egg from the parent bird prior to transfer of the egg to the cloaca in the parent bird;
- in a sterile environment incubating the egg in its shell and hatching the egg to produce a laying bird;
- (b) housing the laying bird in a sterile environment;
- and
- (c) using the laying bird to lay the egg in a sterile environment.
A method of providing an egg of a germ-free status comprising the steps of:
- (a) providing a bird of germ-free status comprising the steps of:
- obtaining a flock of similar birds all reared under the same conditions;
- housing one of the birds as a parent bird;
- in a sterile environment performing a laparotomy incision and tying off the oviduct of the bird at both ends with sutures prior to transfer of the egg to the cloaca in the parent bird;
- transecting the oviduct distal to each suture in a sterile environment;
- removing the egg in its shell enclosed in the oviduct in a sterile environment;
- sterilizing the oviduct;
- removing the egg in a sterile environment;
- and
- sterilizing the exterior of the egg shell;
- (b) incubating the egg and hatching the egg to produce a laying bird in a sterile environment;
- (c) housing the laying bird in a sterile environment;
- and
- (d) using the laying bird to lay the egg in a sterile environment.
A method of providing an egg of a germ-free status comprising the steps of:
- housing a bird as a parent bird;
- in a sterile environment removing an egg from the parent bird prior to transfer of the egg to the cloaca in the parent bird;
- incubating the egg and hatching the egg to produce a laying bird in a sterile environment;
- testing the laying bird for specific contaminants to provide a measure of the germ-free status;
- housing the laying bird in a sterile environment;
- using the laying bird to lay the egg in a sterile environment;
- and
- removing the egg to another sterile environment.
Dependencies are inferred from the claim text.