From:
Sukie Crandall
Date: 2009-02-02 17:36:25 UTC
Subject: [ferrethealth] Re: Rabbit meat
To: fhl <ferrethealth@yahoogroups.com>
taurine studies which have been done specifically for ferrets
Hydrolysis of taurocholic acid yields taurine.
http://www.ncbi.nlm.nih.gov/pubmed/15929634
BEGIN QUOTE
Int J Vitam Nutr Res. 2005 Mar;75(2):133-41.
Effects of dietary taurocholate, fat and protein on the storage and
metabolism of dietary beta-carotene and alpha-tocopherol in ferrets.
Sundaresan PR, Marmillot P, Liu QH, Mitchell GV, Grundel E,Lakshman MR.
Division of Research and Applied Technology, Office of Nutritional
Products, Labeling and Dietary Supplements, Center for Food Safety &
Applied Nutrition, Food and Drug Administration, Washington, DC 20204,
USA.
Dietary factors affecting tissue storage of beta-carotene (BC), alpha-
tocopherol (alpha-T), and retinol (ROL) in mammals include
taurocholate, protein, and fat. Few studies have examined the effects
of these factors on the storage of BC, retinyl esters, and alpha-T in
a mammalian system that is similar to humans. The main objective of
the study was to investigate the effects of taurocholate (TC), fat,
and protein on the absorption and metabolism of BC and alpha-T in
ferret tissues. Three 4-week experiments were conducted using groups
of 5-6 ferrets per treatment. All diets contained 0.2% BC. In
Experiment 1, taurocholate was fed at concentrations of 0, 0.5, or 1%.
Effects of two concentrations of dietary fat (6 and 23%) and three
concentrations of protein (10, 20, and 40%) were also studied in
Experiments 2 and 3, respectively. Tissues were analyzed for BC,
retinoids, and alpha-T by high-pressure liquid chromatography (HPLC).
Taurocholate enhanced hepatic and plasma concentrations of BC (2.3- to
3-fold), retinyl palmitate [(RP) 3.2- to 9.5-fold], retinyl stearate
[(RS) 2.9- to 6- fold], and hepatic alpha-T (6- to 13- fold) at p <
0.05. High-fat diets elevated hepatic BC, RP, RS, and retinyl
linoleate (RL) concentrations (2- to 3.6-fold, p < 0.05). In contrast,
high-protein diets lowered hepatic RL 1.8-fold and alpha-T 8-fold (p <
0.05). Our results indicate the importance of taurocholate, fat, and
protein in achieving adequate levels of vitamins A and E in mammals.
PMID: 15929634
END QUOTE
http://www.ncbi.nlm.nih.gov/pubmed/9682244
BEGIN QUOTE
Nutr Cancer. 1998;31(1):18-23.
Taurocholate stimulates the absorption and biotransformation of beta-
carotene in intact and lymph duct-cannulated ferrets.
Marmillot P, Satchithanandam S, Liu QH, Lakshman MR.
Department of Medicine, George Washington University, Washington, DC
20037, USA.
We have determined the influence of dietary taurocholate and beta-
carotene on the absorption and biotransformation of newly administered
beta-14C]carotene. Male ferrets were fed the control or beta-carotene
diet (0.05% beta carotene wt/wt) with and without taurocholate (1% wt/
wt) for four weeks, and then the absorption and biotransformation of
newly administered beta-[14C]carotene was measured after eight hours
in intact or thoracic lymph duct-cannulated animals. Percent recover
of beta-[14C]carotene in the liver was increased 3.6-fold (p < 0.05)
in the taurocholate-fed ferrets regardless of whether they were fed
the control or beta-carotene diet. Percent recovery of labeled vitamin
A in the liver was also increased by the same magnitude (p < 0.05).
These results were confirmed in thoracic lymph duct-cannulated
ferrets. The recoveries of beta-carotene label in the lymph were
comparable to the corresponding values in livers of intact animals.
The recovery of beta-carotene label in the liver was 50% (p M 0.05)
higher in beta-carotene-fed than in control animals. Taurocholate
stimulates intestinal absorption of newly administered beta
[14C]carotene and its metabolic conversion to 14C-labeled vitamin A
(retinol + retinyl ester) 3.6-fold. Beta-Carotene absorption is as
efficient in thoracic lymph duct-cannulated ferrets as in intact
animals. Prior beta-carotene feeding also stimulates the absorption of
newly administered beta-carotene by 50%.
PMID: 9682244
END QUOTE
These are older so you can use the URLs to read the abstracts.
_Biology and Diseases of the Ferret, 2nd Edition_ was published ten
years ago in 1998 so, given lead times there is a chance that studies
from 1996 might be included, but it is possible that the cut-off
happened earlier. Some are auditory, but I totally lack time to check
these so will leave that to others.
http://www.ncbi.nlm.nih.gov/pubmed/8844721
http://www.ncbi.nlm.nih.gov/pubmed/2122479
http://www.ncbi.nlm.nih.gov/pubmed/6613158
http://www.ncbi.nlm.nih.gov/pubmed/6133730
http://www.ncbi.nlm.nih.gov/pubmed/6114835
http://www.ncbi.nlm.nih.gov/pubmed/526711
http://www.ncbi.nlm.nih.gov/pubmed/347725
http://www.ncbi.nlm.nih.gov/pubmed/913772
http://www.ncbi.nlm.nih.gov/pubmed/913763
http://www.ncbi.nlm.nih.gov/pubmed/1001620
Sukie (not a vet)
Recommended ferret health links:
http://pets.groups.yahoo.com/group/ferrethealth/
http://ferrethealth.org/archive/
http://www.afip.org/ferrets/index.html
http://www.miamiferret.org/fhc/
http://www.ferretcongress.org/
http://www.trifl.org/index.shtml
http://homepage.mac.com/sukie/sukiesferretlinks.html
[Non-text portions of this message have been removed]
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