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Lamb, Mutton or Lamb Meal Dog Food?

Lamb Chump SteaksSome people have reported that feeding dry dog food with lamb helps contain a dog’s allergy symptoms, more so than feeding dog food with beef, chicken or turkey.

Since our dog was showing signs of allergies or something else causing her to scratch a lot more than normal, I was curious about the possible benefits of  lamb.   The ingredients of a premium dry dog food said All Natural Lamb with Rice.  But the ingredients said “lamb meal,” so I looked a little further into what “lamb” or “lamb meal”  means.

There are several definitions of lamb which designate an animal and also the meat of the animal (unlike mutton or pork which designates only meat).  Many statements define what the age of a lamb is before it becomes a sheep or hogget.   Different countries outside the US, such as New Zealand, Britain and Australia, have their own definitions of lamb. Here are a few definitions of lamb and hogget:

Miriam Webster Dictionary:
Lamb: a young sheep: especially; one that is less than one year old or without permanent teeth.

The Farlex Dictionary:
Lamb: a young sheep, especially one that is not yet weaned.

Wikipedia
Lamb, hogget, and mutton are the meat of domestic sheep. The meat of an animal in its first year is lamb; that of an older sheep is hogget and later mutton.

WordNet
Hogget: a sheep up to the age of one year; one yet to be sheared

Other definitions include:

  • Lamb — a young sheep that is less than one year old
  • Baby lamb — a milk-fed lamb between six and eight weeks old
  • Spring lamb — a milk-fed lamb, usually three to five months old, born in late winter or early spring and sold usually before July 1
  • Yearling lamb — a young sheep between 12 and 24 months old.

There is a dramatic difference in the price of lamb meat (around $8.00 per pound) compared to mutton ($3.00 per pound).   Do dog food manufacturers who advertise lamb as an ingredient really have lamb?

Dog food companies generally don’t have FDA inspectors watching their manufacturing processes.  Since there is no way to distinguish between lamb and mutton ingredients in the dog food after it is processed and packaged, why would the manufacturer use high priced lamb meat instead of lower cost mutton?  My cynical side says they probably use mutton more than lamb.

So what’s the story on lamb meal?  The AAFCO (Association of American Feed Control Officials) definition is:

Lamb Meal - the rendered product from lamb tissues, exclusive of blood, hair, hoof, horn, hide trimmings, manure, stomach and rumen contents except in such amounts as may occur unavoidably in good processing practices.

Rendering means to melt down or extract by melting to convert into industrial fats and oils or fertilizer.  For a complete definition see the USDA Animal Product Manual.

This is not food for human consumption.  You can get sick to your stomach on this topic just Google Images “meat rendering plant” or see “What’s Really in Your Pet’s Food??” on Youtube.  I may never buy kibble again after seeing this.

I suppose there could actually be some real lamb meet in lamb meal, but how can you trust the dog food manufacturer and their advertising claim.  Do they really use the sumptuous sounding ingredients “All Natural Lamb and Rice?”  Maybe it would be more accurate to read “All Natural Mutton Meal and Rice.”   In any case,  if I want to find out if lamb will help our dog Molly,  I’ll probably end up buying real lamb for $8.00 a pound, or try to find some lower cost mutton.

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Vitamin D and Cod Liver Oil for Dogs

Cod liver oil has been used for centuries as a super remedy for many ailments and a powerhouse for fighting disease.  Research studies from 1918 to 2001 found cod liver oil to have a high nutritional value and many health benefits, especially when it came to bone health.  Both vitamin A and D are essential nutrients to metabolize calcium for healthy bones.  One ounce of cod liver oil contains 2,700 IU’s (International Units) of vitamin D, the same vitamin generated from sun.  Cod liver oil contains more vitamin D per unit weight than any other food.  One ounce of cod liver oil also provides 27,000 IU’s of vitamin A, almost three times more than beef liver, the next richest source.

cod1

Cod liver oil contains two of the best omega-3 fatty acids; EAP and DHA which are very important for development of the brain and nervous system.

Rickets is an adolescent condition, in humans and dogs, caused by serious vitamin D deficiency. This deficiency in vitamin D results in weak, soft bones, along with slowed growth and skeletal development.  In adults, vitamin D deficiency is manifest in osteomalacia, characterized by bone demineralization due to deficiency or impaired metabolism of vitamin D.

Mrs. May Mellanby and her husband, Dr. E. Mellanby authored over 400 studies in the 1920’s on controlling rickets by diet.  In her initial studies Mrs. Mellanby used dogs as the source of data.

In her research into rickets in dogs, Mrs. Mellanby discovered the mineral-blocking effect of phytic acid in grains and legumes. Dr. Mellanby demonstrated that diets containing high levels of cereals and lacking vitamin D, are the most effective producers of rickets.  Mrs. Mellanby believed that as cereals increase in the diet, vitamin D must also be increased to offset their anticalcifying effects.   She went on to prove that no matter how much cereal is fed, if vitamin D is adequate, bone and tooth formation is normal.

The minimum AAFCO recommendations for vitamin D in dog food are 500 IU / Kilogram (227 IU / lb or 14.2 IU / oz).  This means one egg has almost double the minimum daily vitamin D recommendations.  The maximum AAFCO recommendations are 5,000 IU of vitamin D per day.   Many veterinarians claim that AAFCO nutritional recommendations are too low.  I have seen a lot of older dogs with bone related problems like hip dysplasia and arthritis.   Could these degenerative diseases be related to low calcium metabolism and vitamin D deficiency?  Are the high cereal content kibbles of today a contributor?   Ask your veterinarian or canine nutritionist their opinion.

Sources of vitamin D

Cod liver oil 2,700 IU per ounce

Shiitake mushrooms 249 IU per four dried mushrooms

Orange juice (fortified) 125 IU per ounce; soy and rice milk are often fortified

Fresh herring 461 IU per ounce; pickled herring has 578 IU per serving.

Salmon 177 IU per ounce; mackerel, sardines, and shrimp are also good.

Eggs 26 IU per egg; almost all of the vitamin D is in the yolk.

Milk (fortified) 12.5 IU per ounce; cheese and yogurt are less likely to be fortified.

Tofu 40 IU per ounce; not all varieties are fortified, so read labels.

Yeast and other fungi (like ergot)

Cod liver oil is available from many pharmaceutical outlets.  The natural form of vitamin D found in marine oils is D3 or cholecalciferol.  The vitamin D derived from plants is D2 or ergocalciferol, sometimes considered an inferior form of vitamin D since an additional step is required to synthesize this form into the body.

For some additional reading, here are some great articles on cod liver oil and cod liver oil manufacturing.

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