Hey, Nice post @bien. I am a big fan of using organic techniques in gardening. Animal manure may not be a glamorous option like many other but it is definitely one of the very few low-cost ways to add nutrients and other micro bacteria in your garden.

Have you tried other animal manures like Goat, pig or chicken? I have written an article on using manures as organic fertilizer you might want to check that out. Here is the article https://gardening-abc.com/using-manure-to-fertilize-the-garden-3/