C-Lock Inc. is transforming herd management with precision emissions monitoring and performance tracking tools.
As the livestock sector seeks to advance productivity, researchers and consultants need tools that deliver accurate, real-world data. C-Lock’s suite of precision monitoring technologies – GreenFeed and the SmartFeed line offers validated, individual animal metrics on intake, weight, and emissions.

Designed for field trials and commercial herds alike, these tools support cutting-edge research, inform advisory decisions, and provide the data integrity required for genetic evaluations, feed efficiency modelling, and performance benchmarking.
C-Lock Inc. offers the global standard in cattle emissions and efficiency measurement solutions. C-Lock began in 2005 in Rapid City, South Dakota and established itself as the global leader in cattle emissions research technology in only 20 years.
Producers, corporations and scientists in 48 different countries are currently using C-Lock’s GreenFeed technology to research innovative solutions to improve herd efficiency and reduce greenhouse gas emissions from beef and dairy operations.
GreenFeed technology
GreenFeed is a precision tool that measures methane, carbon dioxide, and other metabolic gases exhaled by cattle during short visits to a specialised feeding station.
It’s a scientifically validated, field-deployable system that captures real-time, individual animal data on emissions and performance, helping producers, researchers, and corporations optimise herd management and sustainability.
By tracking metabolic gases on an individual level, GreenFeed reveals metabolic efficiency – how effectively each animal converts feed into production while minimising emissions. This helps pinpoint animals that are not only more productive but also more environmentally efficient, allowing producers to make smarter breeding, culling, and management decisions.

On a global scale, widespread use of this data can lead to more sustainable production systems and support climate-smart agriculture practices that meet both productivity and environmental goals.
Scientists at institutions and universities all over the world rely on GreenFeed to bolster their research because it offers accurate, high-resolution emissions data across environments, animals, and research protocols.
GreenFeed data enables researchers to investigate the genetic, nutritional, and environmental factors that affect emissions and production efficiency. Because the data is comparable across institutions and geographies, it helps accelerate global climate and livestock research.
SmartFeed technology
In addition to GreenFeed, C-Lock Inc. also offers the SmartFeed line of solutions for performance evaluation. SmartFeed is a precision feeding system that measures individual cattle feed intake for monitoring performance and efficiency.
By tracking feed intake, producers can reduce feed costs and make better breeding and culling decisions, all leading to better economic returns.

SmartFeed is used to test different diets, evaluate supplement responses, and improve feed efficiency. Here are a few of the systems’ features:
- SmartFeed uses real-time data monitoring and cloud-based connectivity.
- Users receive automated reports and email alerts.
- Unlike other intake monitoring systems, SmartFeed offers users complete data ownership and transparency.
Using both GreenFeed and SmartFeed technologies in tandem can be especially beneficial.
Together, SmartFeed and GreenFeed give a full picture of input and output – how much the animal consumes, emits, and how much product it produces.
This pairing allows for unmatched insight into feed conversion, nutrient utilisation, and metabolic status, helping producers and researchers fine-tune nutrition and improve genetics.
Learn more about these herd management technologies and how you can leverage emissions and intake data for actionable insights from your herd at c-lockinc.com.

