Apparatus for harvesting egg fluid, and associated method
A harvesting apparatus adapted to harvest egg fluid from an avian egg is provided. Such an apparatus includes a frame. A harvesting assembly is operably engaged with the frame. The harvesting assembly includes a plurality of nozzles configured to remove egg fluid from an egg. The nozzles are configured to rotate from a vertically off-axis angled position toward a vertical position. A suction assembly is in fluid communication with the nozzles for harvesting egg fluid from an egg. An associated method is also provided.
1. A method of harvesting egg fluid from an avian egg, the method comprising:
providing a plurality of de-capped avian eggs to a harvesting apparatus comprising a harvesting assembly having a plurality of nozzles;
positioning the avian eggs beneath the harvesting assembly such that each de-capped avian egg is positioned beneath a respective nozzle, each nozzle being angled vertically off-axis;
positioning the nozzles within the de-capped avian eggs at an angle vertically off-axis;
rotating the nozzles within the eggs toward a vertical position; and
suctioning egg fluid from the de-capped avian through the nozzles.
2. A method according to claim 1 , wherein the nozzles are angled vertically off-axis at between about 8 degrees and about 12 degrees.
3. A method according to claim 1 , wherein the harvesting assembly comprises a nozzle holder assembly having a plurality of nozzle holders with which the nozzles are operably engaged, the nozzle holders being operably engaged with and freely rotatable with respect to a nozzle holder frame such that the nozzles are capable of corresponding rotation with the nozzle holders.
4. A method according to claim 3 , wherein the harvesting assembly includes a stationary guide frame defining a plurality of guideways, and further wherein the nozzle holders each include laterally extending portions projecting from opposing ends thereof and configured to operate in the guideways.
5. A method according to claim 4 , wherein the guideways comprise arcuate grooves configured to facilitate rotational movement of the nozzle holders and nozzles as the nozzle holder assembly descends and ascends.
6. A method according to claim 4 , further comprising an actuator configured to move the nozzle holder assembly vertically so as to facilitate rotation of the nozzle holders and nozzles.
7. A method according to claim 1 , wherein the nozzles each have a cylindrical body defining a plurality of holes through which egg fluid enters an interior of the nozzle during removal of egg fluid from an egg.
8. A method according to claim 1 , wherein positioning the nozzles within the de-capped avian eggs at an angle vertically off-axis comprises lowering the nozzles to enter the de-capped avian eggs at an angle vertically off-axis.