Aspergillus flavus

What is Aspergillus flavus?

Aspergillus flavus belongs to the watering can fungi, which are characterized by their aspergilliform spore carriers. These look like small watering cans or holy water sprinklers and carry the spores that are responsible for the reproduction and spread of the fungus. Aspergillus flavus is a saprobiont, which means that it lives on dead or decomposing organic matter, such as plant material, compost or food. It can have different colors, from whitish to yellowish to greenish or brownish.

Aspergillus flavus produces various secondary metabolites, i.e. substances that are not necessary for the growth or energy production of the fungus, but have other functions. Some of these substances are useful for humans or other organisms, such as antibiotics, enzymes or organic acids. Others, however, are harmful or even toxic, such as aflatoxins, which are among the strongest known carcinogens.

What are the benefits of Aspergillus flavus for dogs?

Aspergillus flavus can have some benefits for dogs when it is present in small amounts or in a controlled form. Firstly, it can act as a probiotic, which means that it can promote the balance of intestinal flora and thus support digestion and the immune system. On the other hand, it can serve as a source of certain nutrients, such as B vitamins or amino acids. It can also be used as an ingredient in vaccines or medicines that can help against certain infections or diseases.

What are the disadvantages of Aspergillus flavus for dogs?

Aspergillus flavus can also have some disadvantages for dogs if it is present in high quantities or in an uncontrolled form. Firstly, it can lead to an infectious disease called aspergillosis. This can primarily affect the upper respiratory tract and lead to chronic inflammation of the nose and sinuses. Symptoms include nasal discharge, sneezing, nosebleeds, depigmentation or ulcers in the nose. In rare cases, the infection can also spread to other organs and lead to more serious complications.

On the other hand, it can lead to a poisoning called aflatoxicosis. This is caused by the consumption of food or animal feed contaminated with aflatoxins. Aflatoxins are very damaging to the liver and can lead to liver failure, blood clotting disorders, anemia or cancer.

How can Aspergillus flavus be prevented or treated in dogs?

To avoid or treat Aspergillus flavus in dogs, there are a few measures you can take:

• Avoid giving your dog food or feed that is spoiled or moldy.
• Store food and feed in a dry and cool place and pay attention to the expiration date.
• Avoid giving your dog access to rotting plant material, compost or damp soil where the fungus can thrive.
• Clean your dog's bowls, toys and lying areas regularly to prevent mold growth.
• Have your dog checked and vaccinated regularly by your vet to boost his immune system.
• If you notice any signs of aspergillosis or aflatoxicosis in your dog, see a vet immediately. Treatment will depend on the severity and extent of the disease, but may include antifungals, antibiotics, pain medication or surgery.