Tadaaa, la prima fonte, scrollando giu la parte messa in grassetto:
http://www.dogaware.com/articles/dwefas.html (Questo sito è molto interessante. Un altra Bibbia per i barfisti)
The ABCs of EFAs
Pump up your dog's health with the essential fatty acids found in a variety of fish oils.
Dog World article by Mary Straus, published in Dog World Magazine, November 2011.
Dogs require two types of fats: omega-3 and omega-6 essential fatty acids (EFAs). Omega-6 fatty acids are generally plentiful in the diet, no matter what type of diet you feed. Omega-3 EFAs, however, are fragile and break down quickly in the presence of light, heat and air, so they are often in short supply in both commercial and fresh foods.
Adding omega-3 fatty acid supplements to your dog’s diet will support the heart, kidneys, brain, eyes, immune system, skin and coat. These EFAs also reduce inflammation linked to allergies, arthritis and autoimmune disease, and may lower the risk of cancer.
Here's what you need to know about adding oils to your dog's diet. Note that you can use human and pet products as long as the dosage is appropriate.
Fish Oil
Available from many fish sources, such as salmon, sardines and achovies, fish oil provides the two best omega-3 fatty acids for dogs, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).
Most fish oil gel caps contain 200 to 300 milligrams combined EPA and DHA, though some are more concentrated. Pay attention to the serving size on the label to be sure how many gel caps provide the amounts listed there. Fish oil also comes in liquid form, which should be kept in dark bottles in the refrigerator and used within a couple of months of opening to prevent rancidity.
For healthy dogs, give an amount of fish oil that provides 300 mg EPA and DHA combined per 20 to 30 pounds of body weight daily. For older dogs with cognitive dysfunction, or dogs with health issues, such as heart disease, kidney disease, allergies, arthritis, autoimmune disease and cancer, you can increase the dosage to 300 mg per 10 pounds of body weight.
Canned fish, such as sardines, jack mackerel and pink salmon, are another source of omega-3 EFAs. One small sardine contains about 100 mg combined EPA and DHA.
Cod liver oil
EPA and DHA are also found in cod liver oil, but cod liver oil is high in vitamins A and D – fat-soluble vitamins that are stored in the body and should not be oversupplemented. You can give an amount of cod liver oil that provides 100 mg vitamin D per 20 pounds of body weight daily. (The amount of vitamin D will always be listed on the label of a cod liver oil supplement.) If you wish to provide more omega-3 fatty acids, use fish oil instead of or in addition to cod liver oil.
Vitamin E
The body’s vitamin E requirement increases when you supplement with oils of any kind. Although many fish oil supplements include tiny amounts of vitamin E as a preservative, it’s best to give 100 IUs vitamin E per 25 pounds of body weight at least twice a week (or 1 to 2 IUs per pound of body weight daily) if you add oils to your dog’s diet.
Other Oils
Many owners add vegetable oils to their dog's diet, thinking it will be good for the coat and skin, but that's rarely the case. Vegetable oils, such as corn oil, safflower oil, soybean oil and canola oil, are high in linoleic acid, an omega-6 fatty acid also found in grains, vegetables and poultry fat. Too much linoleic acid contributes to inflammation, unlike the more beneficial omega-3 fatty acids found in fish oil.
Flaxseed oil provides a form of omega-3 EFA called alpha-linolenic acid (ALA), which must be converted in the body to EPA and DHA in order to be utilized. Most dogs do not make this conversion very well; at most, 15 percent of ALA is converted, and in the worst case, none at all. For this reason, fish oil is the better choice for providing dogs with omega-3 EFAs.
Olive oil contains mostly oleic acid, a non-essential omega-9 fatty acid. Omega- 9 fatty acids compete with omega-3 and omega-6 fatty acids and decrease their concentration in the blood and skin. It's possible that olive oil might benefit the coat and skin, but keep amounts very small if you use it.
Coconut oil provides saturated fats rather than essential fatty acids. Many people believe coconut oil can help with skin problems, as well as other health issues, but it does not replace the need for essential fatty acids.
Olio di semi di girasole e olio di mais possono causare in cani e gatti sintomi di intolleranza e/allergie come prurito, bolle, arrossamenti nel inguine, ascelle o altrove (non è un sito scientificamente ufficiale, ma la notizia riportata è degna di nota, bisogna passarlo nel traduttore)
http://eten-en-drinken.infonu.nl/diversen/72209-lijnzaadolie-en-zonnebloemolie.html:
Lijnzaadolie en zonnebloemolie bij de mens
Lijnzaadolie is een goede bron van omega-3 vetzuren, zonnebloemolie van omega-6 vetzuren. Omega-3 vetzuren zorgen voor een verlagen van het cholesterolgehalte in het bloed. Verder beïnvloeden ze de functie van het oog en ook van de stofwisseling in de hersenen. Omega-3 vetzuren hebben een positieve invloed op hartritmestoornissen en remt ontstekingen. Omega-6 vetzuren heet ook wel linolzuur en remt het cholesterol. Het versterkt ook je afweersysteem. Een teveel aan omega/6 werkt juist ontstekingen in de hand en hierdoor maak je ook teveel insuline aan. Een teveel aan omega/3 heeft geen nadelige invloed op de gezondheid.
Hond
In het meeste hond vind je de tekst met koudgeperse lijnzaadolie, zonnebloemolie erop. Er zijn ook hondenbezitters die hun hond lijnzaadolie of zonnebloemolie geven, meestal door het voer heen. Honden krijgen uit de voeding al veel omega 3 binnen, vaak via brokken maar vooral via vers vlees. Meestal hebben die honden wel een tekort aan omega 3, tenzij het menu wordt aangevuld met vette vis en een normaal portie kip. Krijgt de hond dit niet en wil je het aanvullen met een olie, kies dan liever voor visolie. Plantaardige olie hoort niet in het menu van een hond thuis.
Honden kunnen allergisch reageren op lijnzaad/of zonnebloemolie, wat zich uit in bulten, jeukende en-of rode plekken in de lies, oksels en elders op de huid. Gaat de vacht nou echt glanzen van al die extra olie? Nee hoor, het heeft geen toegevoegde waarde en de hond krijgt al voldoende binnen via het voer. Schapenvet, ook weer dierlijk, is wel vaak goed voor de hond.Domani il resto.
Topic: Oli vegetali (Letto 11951 volte)
