I can't answer your question, but I tried various searches on Google and came up with some key words that might help you. The resulting information is not the easiest to digest but there should be something there. Try: growth rate rabbits vitamin B12 (assuming you haven't already). From what I know of rabbits, their digestive systems more closely resemble horses than goats. I believe, however, that Vitamin B12 is water-soluable, which should mean that excess is excreted... which in theory should make it fairly safe to supplement. I am probably not the right person to advise you because I lean strongly towards natural feeding. I feel that properly fed, no healthy creature should need extra vitamins. But that's just me. Why not hop on over to the Homesteading Today Raising Rabbits for Profit forum and ask you question there. Lots of show people and commercial producers as well as backyard breeders, so someone should be able to help you. Here is a link that might be useful: HT Rabbit Forum

iluvcats ~ The Kirkland Super Premium Puppy food has the following ingredients: Chicken, chicken meal, whole grain brown rice, cracked pearl barley, egg, beet pulp, chicken fat, potatoes, fish meal, flaxseed, dried brewer's yeast, millet, potasium chloride, salt, choline, chloride, carrots, peas, kelp, applies, dried skim milk, cranberry powder, salmon oil (a source of DHA), rosemary extract, parsley flake, dried chicory root, vitamin E supplement, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, copper sulfate, potassium iodide, thiamine, manganese proteinate, manganese oxide, ascorbic acid, vitamin A supplement, biotin, calcium pantothenate, manganse sulfate, sodium selenite, pyridoxinehydrochloride (Vit. B6), vitamin B12 supplement, riboflavin, vitamin D supplement and folic acid. Everyone knows that rice is far more digestible than corn or wheat. I don't see how this is a bad thing. Crude protein - 28% min. Crude fat - 17% min. Crude fiber - 3% max. Moisture - 10% max. Calcium - 1.2% min. Phosphorous - 1% min. Zinc - 225mg min. Selenium - 0.4mg min Vitamin E - 250IU min. Omega 6 fatty acids - 3% min. Omega 3 fatty acids - 0.5% min. Docosahexaenoic Acid (DHA) - 0.005% min. It's true that this isn't listed a human grade food but most folks simply cannot afford to pay huge prices for that kibble option. Before the onset of commerical kibble dogs and cats have been a part of families. They used to feed table scraps. Perhaps that wasn't so bad in the day when nothing was processed food and everything was grown fresh. I am pleased with the ingredients of this food. The dry kibble that my cats eat also has excellent ingredients. I wonder if I could find out who makes the dry food for Kirkland. Robyn

Jess: Remember the puzzle over what cause our cravings for sweets ?? I still take Brewer's yeast (high in chromium, B vitamins, selenium) for my sweets-craving. I consumed Brewer's yeast for my immune when I was sick with flu-shot reaction, it took away my craving for sugar (despite drinking just lemons, no sugar). Now I cut down to 1/4 dose (only twice a week), just to supply chromium to stabilize my blood sugar. It does help with craving for sweets, see below excerpt: http://www.livestrong.com/article/101523-herbs-lose-weight/ "Chromium: This trace mineral helps metabolize carbohydrates. Some diabetics take it to help stabilize their blood sugar. It also can be used to curb cravings for sweets. Susan Brown, a certified clinical nutritionist in East Syracuse, New York. She recommended 200 micrograms of chromium four times per day to a woman who craved sweets. The woman was amazed at how quickly her cravings were tamed." *** From Straw: Months ago, I reported that eating eggs daily helped with my craving for sweets ... found that eggs are good sources of chromium: Foods High in Natural Chromium Beef Brewer’s Yeast Dark Chocolate Chicken Eggs Oysters Potatoes with the skin on Whole Grains Apples Read more: http://undergroundhealthreporter.com/sugar-cravings-how-to-control/#ixzz44hqTBlAK WebMD also reported that chromium helps with craving for sweets, see below: " June 3, 2004 -- A popular nutritional supplement may reduce serious carb cravings in people with depression. The supplement is chromium picolinate. John P. Docherty, MD, president of Comprehensive Neuroscience Inc., White Plains, N.Y., and adjunct professor of psychiatry at Cornell University, penned the report. Docherty's study enrolled 113 people with atypical depression. Two-thirds took chromium picolinate supplements for eight weeks, and one-third got a placebo. Researchers found that atypical depression patients who also had carb cravings improved with chromium compared to placebo. "In that group with high carb craving -- a third of the patients -- we had a very significant benefit from chromium picolinate," Docherty says. "Compared with placebo, it had a 2-to-1 advantage in reducing depression overall." http://www.webmd.com/depression/news/20040603/chromium-may-cut-carb-craving-in-depression?page=2 **** From Straw: I used to buy chromium supplement but threw that away, after studies linked that to liver-damage. Brewer's yeast is much better, since it has all B vitamins, along with chromium and selenium. Will have to find the amount of chromium and selenium in the dosage.

OP, I agree with other posters. But make certain that you can take Vitamin B12, many people can't and I am one of them. Vitamin B12 (and 6) makes me very agitated or antsy if you prefer (in much the same way as any form of anti-histamine or decongestant). Some times my bloodwork shows that I am B12 deficient and other times it does not. Vitamin D is also an issue - and I have given away the supplements - together with the B12 (and I tried taking it first thing in the a.m. and in increasingly smaller doses). Re the Vitamin D it does not help that I am very pale and subject to extremely burning and I do not tan. Sunscreen is a must. Last blood work showed that I am extremely Vitamin D deficient. I do try for about 2 weeks - there is no way. Many people do get the shots - there is no way I would want that in my system due to its longevity.