
“Willo”
Until fairly recently it was believed that all captive parrots required about the same protein levels in their diet, about 12%-15%, based on poultry protein requirements. Gradually we are beginning to realize that each species may, in fact, require very different protein requirements based not only on their own species and body types, but also based on the regions of the world they originate from as well.
Of course different species require different protein levels in their diet, why would anyone think anything different? How we go about determining this and making sure they receive the proper amount of protein in their packaged food is the great challenge.
Once again I have to tout a diet high in natural, organic whole-foodstuffs. We cannot feed a highly processed diet and expect that our birds will receive adequate nutrition from finely ground, “pre-digested” substandard ingredients.
Why do our parrots need protein, and specifically “quality” protein, in their diet and how do their bodies utilize protein once it is ingested? It’s been long understood that a bird’s body has a tough time metabolizing protein because bird’s need essential amino acids introduced into their digestive tracts in order to metabolize protein. In other words, these amino acids, the building blocks of complete protein, aren’t naturally present in a bird’s chemical make-up, they have to be ingested by the bird, in balance, and then synthesized properly in order for the bird’s system to recognize the proteins to metabolize them appropriately.
Many of us think protein is needed for energy. While this is correct to a certain extent, it is mostly false. Protein is used to build muscle mass, regenerate internal organs as well skin, the largest organ of the body. It is also used to regenerate feathers, beaks and talons, although these parts of a bird’s body are mostly made up of the sulfur-containing amino acids like Methionine which converts to Cysteine and Cystine. All of these items are part of the “bulk” of our birds’ bodies, and add to the total weight of our birds. So it stands to reason that while protein is very important, it is not needed in the same quantity as carbohydrates which give our birds energy. Nonetheless protein is needed for a healthy heart, and all of the other organs our birds need for healthy bodies that function like a Swiss clock.
Remember, in the wild, while they need muscle to maneuver the limbs of trees and take off to flight, they don’t need so much body mass that they can’t fly. And as the caregiver of a captive bird, each of us must decide what the proper forms of protein are in order to build and regenerate these parts of our birds, but not to the extent that our birds look like “muscle builders” when they are creatures that live fairly sedate lives in our homes, and much of that time is spent inside their cages.
First let’s look at the ingredients most often used in highly processed diets when their main ingredients are corn, rice, soy or wheat. None of these ingredients are reliable ingredients from which to supply protein. Wheat may be the only ingredient on that list that may contain enough protein to supply a parrot’s dietary need, but honestly highly processed diets don’t normally contain wheat as their primary ingredient. And even if they did, wheat has too many negative factors to be a good source of protein to feed your companion bird, such as gluten, and indigestible protein that has a tendency to cause allergies. Gluten is the causative agent behind Celiac’s Disease in humans. Wheat is also made up of “insoluble” dietary fiber, not the kind of fiber most companion birds need in abundance in their diets in which to convert into readily available energy. Soy may also be a source high in protein but the problem with soy is that it is very high in phyto-hormones. This can dramatically alter your bird’s natural hormones leaving you with a bird that has ongoing hormonal issues. Research has found that Soy may inhibit endocrine function as well. This not only interrupts the regulation of hormones, but it can cause pancreatic disorders and insulin issues, as in the case of diabetes. Soy, if not processed at high temperatures, that removes most nutrients, contains high levels of phytic acid which inhibits the absorption of many minerals such as calcium, magnesium, copper, iron and zinc. And again, just like wheat, soy is made up of insoluble dietary fiber. So this source of protein, while it looks great at first glance, really isn’t that great overall. And as far as corn and rice, well they just don’t offer much protein anyway. And for any protein they do have to offer, they add too much sugar which converts to starch, which then converts back to sugar, a simple, and empty carbohydrate that can add to yeast infections and possibly diabetes, and may eventually contribute to fatty liver disease. Rice and corn are made up of “resistant starch”, a kind of dietary fiber that literally doesn’t digest and metabolize. While this kind of dietary fiber may be good for a diabetic to some extent, it is an enemy for a healthy bird that needs a quick energy source because it literally sits in the gut and ferments.
Animal Protein
So where do we turn to for quality protein? Well it certainly isn’t meat. Meat is far too difficult for parrots to digest; their delicate digestive system, with its low Ph balance, and the manner in which it is designed, just isn’t designed to break down meat products. And as I have said before in other posts, never, never feed your parrot raw, uncooked meat as it may harbor bacteria that will literally kill your parrot. But even cooked meat is too difficult for your parrot to digest. If you want to feed your parrot “animal protein”, turn to mealworms purchased online and raised on human foodstuffs. Never feed your birds worms you find in your garden as they may have accidentally come across some kind of chemical fertilizers or pesticides, even if it wasn’t in your own yard.
Plant Protein
But our parrots need more than “animal protein” in their basic diet, they need a different kind of protein in their daily diet because they are herbivores, they need “plant” protein. Most of their protein needs to come from reliable plant sources, but not necessarily from grains that are made up of mostly insoluble dietary fiber. Most of the plant protein our parrots would consume in the wild comes from berries, fruit and greens like grasses, bushes, leaves and herbs.
Interestingly enough, and to much surprise, in the wild birds probably get most of their protein from the berries and fruit they consume in the wild! As an example, berries, mango and papaya all have some of the highest protein percentages of any of the food stuffs our birds would consume in the wild. Most of the time birds consume berries for the seed contained in the meat of the fruit, not the berries themselves, and the seed are extremely high in protein and fatty acids. We must remember this kind of plant protein consists of medium-chain fatty acids, not long-chain fatty acids found in animal proteins. Exotic birds are much more able to metabolize medium-chain fatty acids than they are long-chain fatty acids.
They also like nuts. Nuts are eaten mostly for their fat content which is quickly converted into energy, although they do contain a high amount of protein. And parrots love nuts. And why not? One of my favorite nuts to feed parrots is almonds. They are naturally high in both protein and calcium and that’s probably why I like them so much. But they are also one of the less fatty nuts too. Another favorite nut I like to feed are macadamia nuts because they are high in oleic fatty acid, a monounsaturated Omega 9 fatty acid, that is essential to the health of many parrots, also found in Palm Oil, a key to good heart health. But we have to be careful with nuts because they are high in Arginine which may lead to plucking and skin mutilation. So be extra careful in the amount of nuts you are feeding to your birds.
Obviously we cannot find and feed the very same bushes and leaves our birds would consume in the wild, but we can find good quality greens to mimic the plant proteins they might find in their natural habitat. One of my very favorite plants to feed is alfalfa. It hovers at about 15% protein on average, but that level of protein is knocked down when combined with foods of a lower protein percentage. Alfalfa is what I call a “balanced” or “complete” plant protein in that it contains balanced amino acid content. This is one of the reasons it is used in the cattle industry and also why you will find horse owners feeding it to their horses in abundance. The amino acids in a whole food constitutes the building blocks of a protein and alfalfa is wonderfully balanced in the Lysine to Arginine ratio, therefore it is also balanced in the Ph ratio, inasmuch that it is not too acidic, nor is it too alkaline. So overall, this whole food is really the foundation from which to build your bird’s entire diet for good nutrition, in my opinion. This wonderful, leafy green really needs to be looked at more in-depth for feeding many of our herbivore pets.
I will lightly mention legumes here, but not because I consider them a good source of quality “plant” protein, only because legumes contain good and fair amounts of protein supplies. Legumes include cooked and dried beans, peas and lentils. But in order to supply nutrients most legumes need to be at least partially cooked before serving, and in doing so some amount of the real nutrition is lost. So in comparison to leafy greens, such as alfalfa that I mentioned above, legumes still don’t provide that raw “whole-food” nutrition I am such an advocate of because they need to be partially cooked in order to release their nutrition to be available for absorption. Obviously birds do not cook their legumes in the wild before consuming them. In addition, legumes are high in Arginine that amino acid that I believe may contribute to The Mutilation Syndrome. *Since originally posting this article I have found research regarding the dietary fiber of legumes that supports aborting the use of legumes in our companion birds’ diets. The dietary fiber of legumes is largely “insoluble” which renders it useless for the class aves that needs to convert their foods into immediate useable energy. Not only that but insoluble fiber causes inflammation in the large intestine which interferes with the absorption of vitamins and minerals which may be the reason we see so many companion birds suffering malnutrition and hypocalcemia in particular.
*I wish to add a side note here about different kinds of seaweed and algae proteins. Please, please do not feed these on a regular basis to your birds in hopes of boosting the protein intake of your bird’s overall dietary needs. Our oceans have been permanently putrefied with petro-chemicals and radiation. Gone is the day we can rely on nutrition from ocean products. Besides this fact, many algae products, i.e. the blue-green strains, contain the essential amino acid Phenylalanine which is known to contribute to PKU in humans. I believe this is a leading cause of Toe-tapping and Wing-flipping in parrots. I will write an in-depth post on this later in the future.
Amino Acids Necessary for Complete Protein
How do our birds’ metabolize protein?
Protein is metabolized by an amino acid synthesizing process. In other words there are 10 essential amino acids which must be introduced into the body via the diet in order to have a complete protein, and all of the 20 amino acids must be synthesized by the body either by the food that is ingested, or by the body’s natural synthesizing process. It’s fairly easy to find most of the 10 essential amino acids in any of the foods you would normally feed your bird. But one of the most important essential amino acids needed by our companion birds to metabolize protein is Methionine, and it can be difficult to find this amino acid present in most food sources. It must be introduced to our birds’ diet in order for protein to be broken down into a form for our birds’ systems to utilize the protein they take in. When combined with enough Lysine with other foods that contain Arginine, and all of the other essential amino acids and non-essential amino acids, this constitutes a “complete” protein our birds’ systems recognizes as well as one they can utilize. But Lysine, Arginine and Methionine seem to the major players in this process.
The 10 essential amino acids that must be introduced by food are:
1) Phenylalanine
2) Valine
3) Threonine
4) Tryptophan
5) Isoleucine
6) Methionine
7) Leucine
8) Lysine
9) *Histidine (Considered to be a “conditionally” essential amino acid because it is not normally required in the diet, but must be supplied in the diet to specific species that do not synthesize it.)
10) *Arginine (Considered to be a “conditionally” essential amino acid because it is not normally required in the diet, but must be supplied in the diet to specific species that do not synthesize it. It is not concretely known if parrots synthesize Arginine. All research is based on poultry who do not synthesize Arginine.)
The 10 non-essential amino acids which will be synthesized by other amino acids are:
1) Alanine
2) Asparagine
3) Cysteine
4) Tyrosine
5) Aspartate
6) Glutamate
7) Glutamine
8) Glycine
9) Proline
10) Syrine
Most foods contain Arginine in high quantities. It is a little more difficult to find foods that naturally contain Lysine and Methionine so I’m going to list some to help you out.
Foods high in Methionine:
- Cooked Egg Whites (Do not buy and use powdered egg whites, these contain preservatives.)
- Eucalyptus Leaves –Organic if possible (Do not feed if sprayed with insecticides)
- Sesame Seed
- Sunflower Seed
Foods high in Lysine:
- Papaya – However, be careful with papaya because it is a natural histamine, it can cause allergies. Watch to see how your individual bird responds to it.
- Beets – However, beets are high in sugar that can lead to yeast infections. So if your individual bird is prone to yeast infections keep a close eye out for any signs of a developing yeast infection. Beets are also a good supply of beta carotene, the precursor to vitamin A.
- Mango – This is a good all around ingredient and has no side effects that I am aware of. A good supply of beta carotene too!
- Apricot – A little on the sugary side, but not too bad.
- Apple – I don’t recommend apples because they are way too high in sugar content for the little amount of nutrition they offer.
- Pear – Excellent source.
- Alfalfa – Excellent, balanced ratio of Lysine/Arginine which makes this a good base food.
- Pineapple – This can be somewhat of an allergen to some birds, so watch your individual bird carefully. Otherwise it is an excellent digestive agent.
- Persimmon – A good source.
- Peach – A good source.
- Plum – A good source.
- Green beans – A good source.
- Lentil SPROUTS – A good source. (Do NOT feed alfalfa and/or red clover sprouts, these are highly toxic as they contain the amino acid “Canavanine” which is thought to be a carcinogen. However, mature alfalfa is FREE of Canavanine and is safe to feed your parrot.)
- Cauliflower – A good source.
- Guava – A fair source.
- Cinnamon – A fair source.
I cannot stress how important Lysine is to the overall diet. This is the one “limiting amino acid” that Vegans are sure they receive in their diet to accomplish having a complete protein source. “Limiting” means that without it proteins cannot properly be absorbed and metabolized. Lysine is also necessary for calcium absorption.
And finally, Methionine; in reviewing this important amino acid, if it’s not available in the diet through foodstuffs then none of the proteins will be absorbed and metabolized. We must find quality foods that contain Methionine so that our birds’ digestive tracts and metabolic systems will be able to make use of the protein they receive.
Most commercial bird foods have been neglectful in formulating daily diets for our companion birds overall. They have not taken into consideration that a completely balanced protein must consist of including whole-foods that contain both naturally occurring, and equally balanced, Lysine to Arginine amino acids with enough Methionine to properly metabolize the available protein. When we look at the package backs of these processed foods we will be sure to find ingredients that are extremely high in ingredients that contain Arginine. But where are the ingredients that contain Lysine, the all-important amino acid that balances the Arginine in order to make a complete protein? They are virtually non-existent. And how about the Methionine ingredients? Where are they?
Personally, I’m not satisfied if they tell me that they have added the Lysine and Methionine by supplementing them with laboratory-produced, chemical versions because scientists are still debating whether these substances are utilized by a living creature the same way as a natural and organic source is metabolized by a living creature. I would much rather be sure to use the real version, a living version, a whole-food that was made by Nature.
Click for: “Amino Acids: The Building Blocks of Complete Protein – Part 1″
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Machelle Pacion / The BEST Bird Food / BirD-elicious! / Passion Tree House LLC © 2012 All Rights Reserved
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