I understand that people also eat quail eggs, goat milk or etc etc due to geography (?) – but at what point and why did many settle on chicken eggs and cow milk?
Thank you
ETA: WOOAAAAAAH a great deal of responses here. thank you!!!!
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There are a lot of reasons.
Cows are much larger than other livestock that produce milk, which means they yield lots of milk but they can also be harvested for their meat. Their size is superseded only by the bison (which is bred in some midwest states). But we don’t breed bison as much because bison are much more aggressive and difficult to herd. Cow milk is also not homogenous, which means that the cream and fatty components in the milk rise to the top which can be separated and churned into butter. You can start to see why cows are favorable to other animals, they pretty much have the best traits that suit our diet packed into one animal. This is not to say that only cows are bred though, in other parts of the world it is common to raise goats for their milk because they are better suited to the rocky terrain and because some just prefer goat meat and milk.
As for chickens, it’s a little more tricky to see why when you consider that there are other animals that also produce clutches of edible eggs (turtles, duck, quail). Essentially, it’s because they can be raised very quickly and they have a good size to egg produce ratio. Animals like ostriches produce larger eggs but it also means they make less because more energy has to go to making them, and they are also more difficult to control. Quails lay smaller eggs and the eggshells are brittle so they aren’t really great for consumption nutrient wise (they do taste good though). Geese tend to live close to water and so they are harder to raise in inland country farms. Chickens can readily be raised in warm coops no matter the temperature outside and they can be given common inexpensive feed as opposed to more expensive food for geese and ducks.
You have it backwards. We didn’t settle on Cow’s milk and Chicken eggs. Instead we bred these animals to give us these products in the first place.
You see, both the bovine (cow) and chicken as we know them do not – nor ever did – exist in the wild on their own. We humans created these animals ourselves by generations of domestication and breeding. Cows come from an ancient extinct animal called an Auroch, and chickens come from a bird called the red jungle foul.
Since we have put so much effort into domesticating these animals over thousands of years to give us the highest yield, highest quality product, it only makes sense that we use them for this purpose.
CGP Grey has an nice [youtube video](https://www.youtube.com/watch?v=wOmjnioNulo) on why we domesticated some animals but not others and why more animals were domesticated in some places than others.
In India we drink mostly Buffalo milk some drink cow’s milk too but cow’s milk is mainly used for religious purposes and for making ghee a type of butter which is also used for religious purposes as far as I know.
I haven’t seen anyone say yet: chickens are flock animals with strict pecking orders. They self regulate their heirarchy, which allows them to be kept in large flocks without too much conflict.
Chickens evolved in China alongside bamboo. Well bamboo only blooms once every x years, depending on the type. They release seeds which cause the chickens to multiply like crazy. Eventually, chickens evolved so that getting overfed meant making more eggs, which was a good source of food. About 6000 years ago, chickens spread from China to the world, making them a great source of eggs. Most other animals only lay eggs to reproduce, and only every so often. Chickens just do it 24/7 given the right circumstances, which are easy to produce.
Other people have pointed out the facts on cows, but basically, the butter fat separates out easier than other milk sources, meaning butter is easier to make from it. Butter is important, great for cooking. The milk is just a plus from there.
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