Shun NagaiAs consumer concerns about the use of GMOs (genetically modified organisms) in pet food continue to grow, developing GMO-free products has become an increasingly attractive option for manufacturers.
GMOs are created by artificially altering the genes of crops or animals to improve productivity or resistance. However, because their long-term effects on health and the environment remain unclear, a cautious approach is often considered necessary.
In this article, we explain the basic concept of GMOs, their potential impact on pet food, and the key points pet food manufacturers should keep in mind.
What Are GMOs (Genetically Modified Organisms)?
GMO stands for Genetically Modified Organism, meaning a living organism whose genes have been artificially altered. By changing the genes an organism naturally possesses, scientists can add or strengthen certain traits for a specific purpose.
What Are Genes?
Genes are the biological blueprint of a living organism. All living things contain a substance called DNA, and genes are encoded within it.
These genes carry the information that determines many characteristics of animals, plants, and humans. For example, height, eye color, and resistance to certain diseases are all influenced by genes.
GMOs are created using a technology called genetic engineering. This technology allows scientists to take part of the gene from one organism and insert it into another organism, giving it a new trait. For example, a gene from a bacterium that is resistant to disease can be inserted into a plant so that the plant gains greater resistance to disease.
GMOs are used mainly in agriculture and food production. By modifying the genes of plants and animals, scientists can create crops that grow faster, are healthier, or are more resistant to disease, as well as livestock with improved characteristics. They are also used in medicine and biotechnology for developing new drugs and studying diseases.
| Organism | Example |
|---|---|
| Corn | Corn has been developed with traits that make it resistant to insect pests. This allows it to grow even without relying heavily on pesticides. |
| Soybeans | Soybeans have been engineered to tolerate herbicides, helping reduce the impact of weeds. |
| Salmon | Salmon with genes that promote faster growth have been developed, allowing them to reach maturity in a shorter period of time. |
GMOs have already become a familiar part of everyday life, and their use is expected to expand across many fields in the future. At the same time, debate continues over their safety and environmental impact, and research is still being conducted carefully.
How Are GMOs Made?
GMOs are created through genetic engineering, a technology used to give living organisms new traits. It enables changes at the genetic level that would not normally occur naturally. For example, genetically modified crops can be made resistant to pests or enhanced with additional nutrients. The process generally involves three main steps.
1. Selecting a New Gene
The first step is to identify a gene that matches the desired goal. For example, if the aim is to create corn that is resistant to insect pests, researchers may find a gene in another organism, such as a bacterium, that provides resistance to those pests. That gene becomes the key to changing the corn’s original characteristics.
2. Inserting the Gene into the Crop
Next, the selected gene is inserted into the crop’s cells. There are several methods for doing this, but two representative techniques are as follows.
- Agrobacterium method:
This method uses a naturally occurring bacterium called Agrobacterium to insert genes into plants. It is considered highly effective for gene transfer in plants. - Particle gun method:
In this method, genes are attached to tiny metal particles and shot into target cells using helium gas pressure. Once inside, the gene can become part of the cell’s DNA and begin to function.
3. Culturing and Growing the Cells
Once the gene has been successfully inserted into the crop, the modified cells are cultured and grown. If the process is successful, the crop will express the new trait, such as resistance to insect pests.
Researchers then check whether the desired characteristic has actually appeared. If successful, the crop can produce seeds, and those seeds may then be used more widely.
Why Are Genes Modified?
According to the World Health Organization (WHO), the main reasons GM crops are developed include reducing costs, increasing yields, and improving nutritional value. These factors are especially important in addressing food shortages and promoting sustainable agriculture.
To Improve Agricultural Productivity
For example, by introducing genes that make crops resistant to disease or insect damage, genetically modified crops may be able to maintain productivity even in agricultural environments where conventional crops would suffer losses. Such technology can also reduce the need for pesticides and chemical fertilizers, which in turn can lower farming costs.
In addition, genetic modification can be used to develop crops that are resistant to viruses and disease. This helps reduce damage from infection and makes it possible to harvest more crops from the same area of farmland, significantly increasing yields.
These benefits are highly important from an agricultural and economic perspective, especially in regions where food supplies are limited or where production must keep pace with a growing global population.
To Help Address Hunger
Genetic engineering is also used to develop crops with enhanced nutritional content. For example, in regions where people are at risk of vitamin or mineral deficiencies, nutrient-enriched crops may help address serious hunger and malnutrition issues.
As a result, genetic modification is receiving increasing attention as a technology that may help stabilize food supplies and improve sustainability, while also serving as a possible response to global food shortages and climate change.
The Impact of Genetically Modified Organisms
On the other hand, it is also important to understand GMO ingredients and the potential risks they may pose to humans and animals. Some people have expressed concern that consuming foods made with genetically modified ingredients could increase food allergies or lead to DNA damage or mutation.
One study found that pigs fed genetically modified feed showed significantly more stomach inflammation than pigs fed GMO-free feed. GMO ingredients have also been suggested to potentially affect the environment, the food supply chain, and biodiversity.
In this way, GMOs may be considered ethically controversial. However, because there is still a lack of conclusive research, it remains unclear what long-term effects GMOs may have on the environment and the economy.
The Importance of GMO-Free Pet Food
GMO-free pet food, whether dry or canned, is made with natural ingredients that have not been genetically modified. Choosing ingredients harvested without genetic modification may have positive effects, such as supporting environmental conservation and helping farmers who produce natural foods.
There is still very little scientifically reliable research on how genetically modified foods may affect pets’ diets. As a result, even when consumers want to learn more about the issue, there is currently not much information available for them to rely on.
Even so, pet food manufacturers should provide transparent information so that consumers can reach their own conclusions from an ethical standpoint and act accordingly.
By labeling a product as “GMO-free,” pet owners are better able to consider potential impacts and make decisions that align with their own values and beliefs. In this way, improving visibility into ingredients can help support pet owners who have concerns about what goes into their pets’ diets.