The phrase "feed source" refers to the place or thing from where a particular type of food or information comes from. It can be the origin or the supplier of what is being provided to someone or something. Full definition
It is one of the best feeding source for growing puppies because that is the time they require the most amount of dense nutrition to develop their inner strength. (breedingbusiness.com)
To help minimize potential trauma involved in introducing a new feeding source, we offer the following guidelines: 1. (motheringfromtheheart.com)
The # 1 benefit is that your dog is receiving a natural source of rich omega 3 fish oils — you are literally feeding the source of the fish oil. (diydogmom.com)