How / Why Pigs Become Feral


Why Pigs Become Feral

HOW PIGS GO FERAL? AN OVERVIEW

Pigs are sensitive and pretty creatures. They have commonly reared animals for different useful benefits. Pigs have wild ancestors. Many pig owners show interest to know that can domesticated pigs become wild or feral. How this transformation occurs in pigs? What are the various factors associated with this?

Here we will have an extensive look over the transformation of domesticated pigs to feral hogs.

Feral Oigs in United States

HOW PIGS BECOMES FERAL?

According to some scientific researches, when pigs escape or leave the captivity, after some time they start transforming back to their normal (back to wild). This just all happens due to the genes from wild ancestors present in them. These genes switch off and when their environment changes i-e they start living in a wild environment, these genes switch on and make turn them into feral creatures.

Some zoologists code that when pigs get out the normal domestic conditions, in a matter of months, they revert back to their wild reality such as they grow long hair, grow tusks and get aggressive.

Interestingly, other some scientists don’t favor this logic. They explain that domesticated pigs remain as it is even though they escape from your captivity. Although, they get some morphological changes such as growing long hair due to the environment variations and their genetic makeup.

Friendly Feral Hog

Due to all that, they become feral hogs. This is to be remembered that they don’t transform or revert back to the wild boars (which are not domesticated at all. They have naturally wild characteristics and nature.

NOTE: Even after getting wild morphological changes, feral hogs will not have the same nature as wild boars. There is still wide of difference between these two pigs.

WHAT IS THE GENETIC PHENOMENON BEHIND THIS TRANSFORMATION?

Let’s throw some light on the genetic contribution that turns the pigs into feral ones when they are introduced to the wild environments. As you know, a creature’s phenotype (physical appearance) is totally controlled by the genotype (set of genes/genetic frame) and the environment.

There are specific genes which control the each phenotypic trait. Gene expression depends upon the environment in which that specific creature finds itself, this particular phenomenon called epigenetic. “

Trapping Feral Hogs

There is another relevant genetic phenomenon that is called neoteny in which creatures retain juvenile characteristics depending on their environment, and will quickly mature given certain conditions.

Coming to the point, if a pig is domesticated, he is kept at farm, owner protects him from a predator, and feeds him a balanced and appropriate diet. These all secure and optimum conditions which are provided at the farm (domestication settings) keep his nature calm and such pigs have a low level of testosterone in their bodies.

But when such pigs are introduced in wild conditions or escape from the domestic settings, they have to face predators (less secured) and they have to do struggles for food and other things.

These stressful conditions increase the level of testosterone in their bodies along with other hormonal changes. This all causes long hair growth, change in behavior, and other morphological changes in them and they become feral hogs.

HOW CAN YOU DIFFERENTIATE BETWEEN WILD PIG AND FERAL HOG?

The term Wild boar is typically used to describe Eurasian wild boar from Europe or Asia. Feral hogs are those that originated from domestic breeds but may be the result of a few or many, many generations in the wild. 

Feral Hogs

In the U.S. the best descriptor is probably to refer to them simply as wild pigs.

In addition to that, they also have a number of morphological and behavioral dissimilarities.

NOTE: Feral refers to a pig that has been escaped from domestic settings to wild environment. But wild means non-domesticated. Remember, sometimes feral or wild hogs/pigs can be used interchangeably but there is some actual differences at all.

WHY FERAL HOGS ARE BAD FOR HUMANS?

Due to the change in their behavior, feral pigs become dangerous for humans. They destroy agricultural crops and pose a high risk to the environment. Simply, they eat anything that fits in their mouth. Additionally, they eat all crops and pastures and destroy the normal habitat of native plants and animals.

You can say they cause a number of problems in ecosystem and are growing concern in US. Remember, feral pigs’ feral pigs’ causes billions of dollars in property and agricultural damage every year in the United States both in wild and agricultural lands.

It has also been documented that feral pigs are associated with a number of infectious diseases in humans because they carry many pathogens that pose a high risk for livestock, humans, and other wild creatures.

DO DOMESTIC PIGS GROW LONG TUSKS?

Yes, unaltered male pigs grow long tusks which are totally undesirable for the owners. Pig owners love to see trimmed tusks and keep them in a limit. But when domestic pigs get into the wild environment they start growing long tusks. This change in the dentition in domestic pigs in wild happens due to the change in diet.

Trimming / Sawing Feral Pigs Tusk

HOW CAN WE CONTROL FERAL HOGS?

As feral pigs are a major cause of destruction, so there are many lethal and nonlethal protocols which are used to control their population and keep them away from your precious premises.  

The options include bad tasting liquid sprays, water sprayers and sound repellers. The water and sound are designed to “spook” them away by making them feel stressed and uncomfortable.

There are also a number of strategies to keep them away. Select any method according to your suitability.

CONCLUSION

In US almost all males are kept castrated or killed young. Castration plays a very essential role and can prevent domestic pigs from getting feral. So, it is recommended to castrate them or kill them before they reach maturity. As intact pigs have higher chances of turning into feral creatures.

Castrating Pigs

REFERENCES

Calero-Bernal, R.; Verma, S. K.; Oliveira, S.; Yang, Y.; Rosenthal, B. M.; Dubey, J. P. (April 1, 2015). “In the United States, negligible rates of zoonotic sarcocystosis occur in feral swine that, by contrast, frequently harbour infections with Sarcocystis miescheriana, a related parasite contracted from canids”. Parasitology. 142 (4): 549–56.

 Campbell, Tyler; Long, David; Leland, Bruce (2010). “Feral Swine Behavior Relative to Aerial Gunning in Southern Texas”. USDA National Wildlife Research Center – Staff Publications. University of Nebraska – Lincoln.

John J. Mayer; I. Lehr Brisbin, Jr. (March 1, 2008). Wild Pigs in the United States: Their History, Comparative Morphology, and Current Status. University of Georgia Press. pp. 1–3.

Hawkes, Logan (May 17, 2013). “Feral hog control the military way”. Southeast Farm Press. Retrieved February 10, 2014.

 Taylor, Richard B.; Hellgren, Eric C. (1997). “Diet of Feral Hogs in the Western South Texas Plains”. The Southwestern Naturalist. 42 (1): 33–39.

KEY WORDS (FERAL PIG) (PIG NUTRITION) (PIG BEHAVIOR ) ( PIG’S TUSKS) ( DOMESTICATED PIG) ( WILD PIG)

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