Least Cost Feed(LCF) is a Web-Based Least Cost Formulation Software that helps Livestock Farmer, Nutritionist or anyone who like to optain the cheapest Diet for their Livestock or pets. It uses GNU Linear Programming Kit(GLPK) at the back end to find the least cost solutions for the nutrition specifications that the user provide.

I have a day job and I am running this web-app as a hobby of my. Hoping that Least Cost Feed can help people interested in livestock, animal or pets diet to produce cheaper and better feeds or products.

I am running the site for free and on a very tight budget. Please forgive me there are bugs or less pretty user interface, do send me emails, if you have any comments or suggestions. Thank You.

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An ingredient is a substance that forms part of a formula (in a general sense). For example, in cooking, recipes specify which ingredients are used to prepare a specific dish.


Nutrients are the nutritious components in foods that an organism utilizes to survive and grow.


Formula is the mixture of ingredients that form a diet for animals.


Specification is the nutrients content of a formula.