Let's not joke about this. oh oh oh YES of course! you must have PASSION for farming. It plays a very big part of, or even the most important part in the success of your farm. Not many new farmers last because they never had the passion in the first place.
Invest in yourself and not just the farm. Learn more than the basics, ask questions that the manual does not cover. Question and be inquisitive!
But, most of all LOVE your chickens, LOVE your farm, LOVE the money your chickens will make you.
So, don't be shy! Show your chickens LOVE. Take the entire cycle serious. Take not of the small things. Go the extra mile for them. Provide them with the best and they will flourish.