The question of what constitutes a good diet in the form of dry food is a good one.
I have read a couple of papers that point out the need for specific compositions where it comes to the alligator "chow". One paper, written by Kercheval and Little titled Comparative growth rates in young alligators utilizing rations or plant and/or animal origin" and presented a the CSG meeting in 1990 showed the pointed out that there is substantial difference in growth rates between alligators that are feed a chow that in which the protein is plant based -vs- animal based - with the animal based protein producing much better results.
Another paper written by Staton, McNease, Theriot and Joanen presented at the same meeting titled "Pelletized alligator feed: an update" talks about the the various levels of protein and the benefits of various compositions to alligator growth. The end result was that using Burris Mills/nutria mix that equaled 54% to 56% protein produced the best results.
With that in mind, I attempted to find the composition of the various fish chow on the market. I was unable to determine the source of protein (plant or animal) of any of the foods that I was able to find via internet searches. The only thing I could find ANY data on was at the Purina Mill site
http://www.fishchow.com/aqua/index_aqua.html
The only product here that had any information was the game fish food which specified 32% protein, quite low and in addition, did not say what the source of the protein is.
I contacted Jason at Burris Mills to ask the question. Below is the text of my email and the Burris Mills response.
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Bill,
I will attempt to answer your question in regards to my alligator products. I offer other products besides the two that I am describing here. The reason that I only describe two is that the Kingsnake forum is hobby/pet owners group whose objective is to keep their animal fed a nutritional diet to keep them healthy not commercial growers whose objectives while similar but mainly focuses on maximizing the growth of the animal. So with this stated I recommend for the hobby/pet owners the following:
*Small gators 2 feet and less should be fed my 56% Burris Gator Feed in a ¼” pellet size at 2% body weight per day.
*Growing gators 2 feet and larger should be fed my 45% Burris Gator Feed X-tra Vit in a 3/8” or larger pellet size at 1% body weight per day.
While it is true that you can feed trout feed or even dog feed to your gator these diets are not balanced to the nutritional requirements of your animal which results in nutritional deficiencies. The sources in which the protein is derived in trout and dog feeds are commonly not high in animal sources but rather plant which when fed to a carnivorous animal such as a gator get passed through not allowing for proper nutrient absorption.
I hope that this sheds some light on the subject. Please let me know if I can be of further service to you or the group.
Thanks,
Jason
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-----Original Message-----
From: Bill Moss [mailto:mngatorguy@msn.com]
Sent: Sunday, February 01, 2004 9:29 AM
To: jasmith@burrismill.com
Subject: Gator Chow
Hi Jason,
A question comes up frequently on the alligator forum at Kingsnake dot com about feeding trout chow vs your product.
Would you be so kind as to tell me what the major differences would be and which formula is recommended for the various growth stages of the crocodilian development.
Thanks
Bill Moss
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This seems to support that the pellets formulated for fish may not have the nutritional balance required for long-term health of captive crocodilians.
Bill