It's interesting.. in theory they will only eat to meet their energy needs... which means a calorie is a calorie regardless of where it comes from... just the nutrient profile wouldn't be the same. They can only reach their genetic potential with maximum nutrition, but they cannot go beyond that. Despite differences early on, most would end up THEIR same size in the end. (maybe not true on a constricted time frame)They’ve been on as high as I could get until I now found there’s a 26%version. They look great but I’m really just trying to see how big I can get them.
When looking into the french method of Marans and such... seems like they might have done force feeding, when "fattening" up.
I do give my birds sour milk when I have it... but that's out of a desire to not be wasteful and have them benefit from the probiotics within.
Interesting read...
https://www.gov.mb.ca/agriculture/l...ltry/poultry-rations-and-feeding-methods.html
https://www.researchgate.net/post/I...ol_method_on_force_feeding_in_broiler_chicken
ETA: since a calorie is a calorie to birds... and they only come from 3 sources... fat, protein, and carbs including fiber... is why I choose higher protein feeds, feel like I get more nutrients. Many poultry rations don't contain their kcal content like other feeds. Carbs and protein contain the same amount of calories.