  Farmers need to be efficient and dedicate a lot of time in order to sustain
the quality of their animals which are in their care. The most convenient and
good quality - price ratio should be chosen for the feed of animals. Blockchain
is used in a virtual space to store and share information over a network of
users. This is done using the open source Hyperledger Fabric platform. The
transactions can be viewed by all the other users in real time. These
transactions are stored as JSONs inside CouchDB NoSQL database which supports
queries on a large volume of data. When using this technology, the farmer can
know with whom the supplier for animal feed collaborated with. The history of
the transactions are not saved in just one place. In this way, it is more
difficult to hack and provide implausible information. An e-learning platform
was created where the farm's user can post information, respectively new blocks
about the animal's birth, vaccinations, medicines, including the location of
the livestock. The same e-learning platform is accessible from the mobile
phone. By using the blockchain technology, anyone, including the client from
the shop can know a lot about the origin of the products. Fake origins of food
are much more difficult to hide. Fraud is also limited. The system monitored
the traceability of dairy products inside a Romanian farm. Data about fodder
provider and quality, cow productive performances and health and dairy products
process were obtained and analyzed by students who will become specialists at
all the levels of the food chain. Blockchain is the technology which in case of
a dairy products contamination, the origin of the farm is traced in just a
couple of seconds. In this way just a batch of dairy products is removed from
distribution, leading to the reduction of food waste.
