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
Generating compiled code that indicates register liveness
Methods and apparatuses for anti-shading correction with extended color correlated temperature dependency
Portable electronic device holder and tether
One-dimensional metal nanostructures
Modular utility rack
Detachably integrated battery charger for mobile cell phones and like devices
Method and apparatus to adjust received signal
  Randomly Featured Patents
Carrousel cosmetic tray
2'-substituted oligomeric compounds and compositions for use in gene modulations
Method and device for determining the quantities of consumable products contained in reservoirs grouped together next to one another and document printing device using this method
Memory access system and method modifying a memory interleaving scheme so that data can be read in any sequence without inserting wait cycles
Carbon molecular sieves and a process for their preparation and use
Film support devices and printing system handling ink film for printing
Data transmission device for random access network, with improved collision resolution, and corresponding method
Cloning objects in a virtual universe
Process for producing heat-treated sintered iron alloy part
Generating capacitance look-up tables for wiring patterns in the presence of metal fills