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Chicken’s diet and it’s effect on linoleic levels.

Poultry (meat and eggs), and pork, when compared with other meats (beef, goat, bison, etc…) has a vastly different fatty acid profile, being much higher in Linoleic acid, and lower in stearic.

This has led me to wonder: is this difference a biologically innate quality of chicken, or is it simply determined by the quality of food they eat (ie: corn, soy, and grain are high in linoleic acid, so the animal fat retains high amounts of it, whereas cattle/ruminants is fed grass most their life if not all, hence low linoleic).

For example, the fat profile and amount of wild boar is vastly different to a domesticated pig fed corn and soy.

Does this apply to chicken as well? And if so, if someone were to raise their own chickens on an insect/grass/fruit only diet, would the fatty profile be quantifiably different?

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Answer

I think diet has a big impact. Just from observation, the eggs from my friends free-roaming, spoiled pet chickens are different from regular store bought eggs. The shells are thicker and the yolks are a much darker orange color. Closest grocery brand I can find are Nellie’s. Would love to see if anyone found a study.

Answer

It is a combination of natural levels + diet.

“Compared to eggs of the caged hens, pastured hens’ eggs had twice as much vitamin E and long-chain omega-3 fats, 2.5-fold more total omega-3 fatty acids, and less than half the ratio of omega-6:omega-3 fatty acids (P<0.0001).”

https://www.cambridge.org/core/journals/renewable-agriculture-and-food-systems/article/abs/vitamins-a-e-and-fatty-acid-composition-of-the-eggs-of-caged-hens-and-pastured-hens/552BA04E5A9E3CD7E49E405B339ECA32

Answer

I loved getting duck eggs from my local farm. So much that it’s a goal for me personally. Their diet absolutely impacts every part of their ovum. It also affects their offsprings development should the eggs be fertilized. I’d scour the web to see if there were any nutrient profile studies done. I also believe method of slaughter affects cortisol building up in the tissues of the animal

Answer

Well to comment about wild boar vs domesticated piggy. Wild boars also literally have to run all day and scour for food, food sources do vary for the boar but its lifestyle is also extremely different than his domesticated cousin wilbur.

Answer

In part the feed matters greatly. But unlike ruminate animals who have bacteria & digestion system capable of converting to saturated fat, mono gastric animals do not. So poultry & pork, the feed matters.

Answer

the fats in chicken and pork are a reflection of the fats in their diets (coming from soy, corn, etc). For ruminants this isn’t true as the bacteria in their guts coverts those plant fats to more saturated fats that are preferred by mammals. If you raise chickens at home and can include some saturated fats in their diet then the fat in their meats will reflect that

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