Resources Contact Us Home
Crop weighing

Image Number 8 for United States Patent #6449896.

A method of determining the weight of animals and the development of plants in a controlled environment. The method includes measuring the increase in CO.sub.2 production over a test period. CO.sub.2 production is a measure of the metabolic rate and this is related to weight of animals and development of crops which can often be determined by weight. There is illustrated a poultry rearing house having vents, lights and an air heater. CO.sub.2 sensors are connected to a CO.sub.2 controller and in turn to a central controller. To test the increase in CO.sub.2 production over time, the birds are settled into a passive state with no feed and the lights turned off. The level of CO.sub.2 produced is measured. The vents are closed. After a time, the rate of Co.sub.2 produced is measured and the increase calculated.

  Recently Added Patents
Inhibitor of casein kinase 1delta and casein kinase 1E
Food safety printer
Printing apparatus
Efficient file system metadata scanning using scoped snapshots
Devices and methods for the production of coaxial microfibers and nanofibers
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
Data storage device and block selection method for a flash memory
  Randomly Featured Patents
Control of auto-tracking in tracking-error correcting system of video recording/reproducing apparatus
Mobile phone system for allowing a user to transmit voice messages
System and method for performing scalable distribution of process flow activities in a distributed workflow management system
Footwear mold heating system and method
Moving object tracking method
Inkjet printer and inkjet print method
Beam splitter for automatic focusing device
Closed-loop mixture control system for an internal combustion engine with fail-safe circuit arrangement
Compact non-metallic load center enclosure
Amusement car