Essential Fatty Acids (EFAs) are a requirement in everyone’s diet, for both human and animal. However, the body cannot produce EFAs on its own, so it must be added to the diet each day. The two most commonly known fatty acids are omega 3 (linoleic acid) and omega 6 (alpha-linoleic acid). The diets of our pets, like people, tend to include more omega 6 fatty acids rather than omega 3. This is an imbalance that needs to be improved upon.

Omega 3 fatty acids are essential as they help with the proper formation of cell membranes, cardiovascular functions, nourish the lining of the digestive tract, and work to keep your pet’s skin and coat smooth, soft and shiny. Another essential function of omega 3 fatty acids is that they work to reduce inflammatory problems in the body. If you find your pet’s coat is dull and brittle or if he/she tends to have dry skin and scratch a lot, it may be due to a lack of this particular fatty acid.

There are different types of essential fatty acid supplements that are available, however which kind you choose to supplement your dog or cat’s diet can be a bit of a dilemma.

Pure plant oils such as flax oil, evening primrose oil, safflower oil or a blend of plant oils is a good alternative to fish omega-3 fats. These should be “cold-pressed” oils, as opposed to oils that are typically extracted with chemical solvents. The problem with plant oils is that animals have a harder time converting the fatty acids to a form best used by the animal’s system.

Fish oils, such as salmon oil, halibut liver oil, or cod liver oil are more easily converted and used by an animal’s body. The downside is that fish oils often contain deadly toxins, including high levels of dangerous PCBs, dioxins and detectable levels of mercury. Farmed salmon is the worst for contamination and contains less omega 3 acids than wild salmon. At present nearly 30% of all fish are farmed, with salmon being in the 90% farmed range. As well, farmed salmon are often carriers of disease and parasites. When supplementing your pet’s diet with fish oils, choose oils that come from wild sources, not farmed.

There are also blended fish and plant oil supplements available. These often include a mixture of salmon or cod liver oil and flax, safflower or other such oils that provide a mixture of 3 to 4 parts omega 3 oils to 1 part omega 6 oils. Giving your animal a combination fish/plant supplement may be a good alternative to consider, as they should contain fewer toxins since they are not strictly fish oils, yet still should be better assimilated by the animal’s body than straight plant oils.

1.    Bacterial Diseases in Fish

Bacteria are a very common cause of complaint for fish breeders. There are many bacterial diseases in fish caused due to pathogenic bacteria. These bacteria can either attack the fish externally, or can enter into the body of the fish through the skin and can damage internal organs, even leading to death. Fin rot and bacterial gill disease are the most common bacterial attacks in fishes, in which the fins and the gills are infected respectively. If the bacteria have managed to gain entry into the body, it is known as systemic infection. Bacteria can also cause ulcers and lesions on the body of the fish. Bacterial infections are easily apparent externally as ulcerous marks or red irritations on the skin of the fish. Bacterial infections are very common in koi fish.

2.    Fish Lice

Fish lice are scientifically termed as argulus, and being about a centimeter in size, they are among the largest parasites found in the animal world. They are very detrimental to the health of the fish, because they can suck out the fluids from the body of the fluids by clamping their proboscis like mouth into the bodies of the fish.

Lice are easily to identify on the bodies of the fish because they are clearly visible. However, it is necessary to carry a careful inspection of the body of the fish, especially in the hidden areas behind the fins. Lice may appear as dark spots when they are not moving. If there are too many lice, the fish will be quite agitated and will move their body a lot.

3.    Flukes in Fish

Flukes are parasites in fish that are harmless in small numbers, but can be fatal to the fish in large numbers. Flukes are small, about 2 mm in length, and are almost invisible to the naked human eye. But these flukes have hooks through which they clamp to the bodies of the fish. Flukes can suck out the body fluids from the fish and even cause their death. The significant threat from flukes is that one fluke requires only one fish to complete its lifecycle, and therefore there is more reason why the fluke will remain clamped to the fish. Flukes have been considered to be the most difficult of the fish parasites to treat, though treatments with malachite and formalin often show positive results in stronger doses.

4.    Ich

Commonly known as ich, ichthyobodo or costia is a very common parasite that is found on the bodies of fish. Several fish can live with this parasite showing no signs at all. In fact, in small numbers, ich is harmless. The defenses of the fish can keep the number of ich under control. But when fish suffer from some other disease, the defenses are broken and then ich begins to multiply. Ich can multiply at a very fast rate. In no time, the fish will show a large amount of ich on its body, its breathing will become labored and shortly, it will retreat and isolate itself from the other fish. When this stage arrives, ich often proves fatal to the fish.