Poultry Science
Red Jungle Fowl History
We take for granted our relationship with chickens. After all, more than 23 billion chickens live on the planet right now, and more than 65 billion chickens are consumed each year. That doesn’t include the more than 800 billion eggs eaten by us every year.
In fact, there are more chickens in the world than any other domesticated or wild vertebrate species in number and biomass. They provide us with food at multiple levels from mega farms to humble backyards all over the world. Village poultry (i.e., “backyard” chickens in Africa and Asia) are an essential source of protein and income for millions of people.
The ubiquity of chickens wasn’t always so, though. In fact, until the recent African swine fever outbreak in China in 2018, pigs were the most consumed animal protein on the planet. The point is that the scope of chicken meat and egg consumption wasn’t always at its present level. So why is this so?
RISE OF VILLAGE POULTRY
From a historical perspective, humans have only lived in villages — as opposed to being hunter-gatherers — for approximately 10,000 years, and chickens have been with us as domesticated animals for approximately 7,000 to 8,000 of those years. However, the reasons we brought them into our villages are probably different than what we might guess thousands of year later.
Specifically, chickens were domesticated not for dinner purposes but for status, religious ceremony
and entertainment (i.e., fighting). In fact, the best fighting birds were often buried with the high-status elders. From a more practical perspective, roosters were also used as timepieces, as crowing roosters proclaimed the hour of dawn. Once established in the culture of these emerging societies, various cultures then spread them via migration, trade and territorial conquests to various locations including Europe in 3000 B.C. and South America in 1200 A.D.
One of the reasons chickens were largely ceremonial as opposed to dinner is their appearance. The humble chicken wasn’t so humble back then; it was a smaller, flightier bird with long, colored, beautiful feathers. In other words, you’d want to show it off as opposed to stick it in a barn. You can see the living ancestors to modern chickens — red jungle fowl — with a trip to modern-day India, Bangladesh or Sri Lanka.
Based on how stunning red jungle fowl appear, it might make more sense why humans would prefer to hunt wild animals; keep farm-domestic animals, such as sheep and goats, for milk and meat; or learn how to farm grains on the same plot of land. That way, they could just “show off” their chickens.
TRANSITION TO DOMESTICATION
There isn’t a lot of research on this, but slowly but surely chickens — and their eggs — were used as sources of protein and fertilizer. One thing that helped the red jungle fowl become the humble chicken is that it became a prolific egg producer — compared to other birds.
Most birds don’t lay eggs yearround. As an example, ducks only lay eggs in the northern hemisphere between mid-march and July. In contrast, a chance mutation in the jungle fowl led to hens that can lay eggs close to year-round, depending on the breed and amount of light. Interestingly, societies that domesticated jungle fowl were largely equatorial, and hence, a constant amount of light was present year-round to facilitate year-round egg production.
In addition, chicken poop was likely found to be useful as an effective fertilizer. As humans were learning to farm, farmers likely figured out that their crops were more productive on fields that had some level of manure on.
VILLAGE STAPLES
Village poultry in Asia and Africa represent an interesting bridge between jungle fowl and the highly domesticated breeds we typically keep today on our farms and in our backyards. The concept of village poultry — indigenous chickens that are highly adapted to their environment — is a highly established part of life in most of Africa and Asia.
Although the village breeds aren’t as productive as conventional breeds, they’re typically tougher from a disease-resistance and heat-tolerance perspective. In addition, the heavier commercial breeds often have problems escaping predators, are poor scavengers for feed and show poor broodiness, which is an essential step for creating replacement stock for village poultry.
As backyard-poultry owners, our purpose for having chickens is likely different than what I’ve just described, but it’s a useful exercise