Abstract
Sixteen female rabbits were fed one of four diets during lactation: 1) a commercial stock diet; 2) the stock diet with 5% added lard; 3) the stock diet with 5% lard and 0.25% cholesterol; or 4) the stock diet with 15% lard and 1% cholesterol. By days 30-35 of lactation, maternal plasma cholesterol concentrations were increased approximately 10-fold in group 3 and 100-fold in group 4 does compared to does in group 1. Milk cholesterol concentration was similar over lactation for does in group 1, 2 and 3, but was approximately 2 times higher in group 4 does. Milk triglyceride and protein concentrations and milk intake by the pups were not significantly influenced by maternal diet. Average cholesterol intake of pups nursed by group 4 does was significantly higher than that of other pups. Although plasma cholesterol concentration was significantly increased in group 2, 3 and 4 pups at weaning (age 5 weeks), there was no significant effect of maternal diet on plasma cholesterol at 6, 7 or 11 weeks of age after pups had been weaned to the stock diet. Similarly, liver cholesterol concentration was increased in pups from group 4 does at weaning, but these differences were no longer apparent at 11 weeks of age. These data suggest that severe maternal hypercholesterolemia induced by dietary fat and cholesterol in the rabbit can result in increased milk cholesterol concentration and consequent cholesterol intake by the pups. However, the associated elevations in pup plasma and liver cholesterol levels at weaning did not persist when pups were weaned to a low fat/low cholesterol diet.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 432-441 |
| Number of pages | 10 |
| Journal | Journal of Nutrition |
| Volume | 111 |
| Issue number | 3 |
| State | Published - Jan 1 1981 |
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All Science Journal Classification (ASJC) codes
- Medicine (miscellaneous)
- Nutrition and Dietetics
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Effect of dietary fat and cholesterol on milk composition, milk intake and cholesterol metabolism in the rabbit. / Whatley, B. J.; Green, J. B.; Green, M. H.
In: Journal of Nutrition, Vol. 111, No. 3, 01.01.1981, p. 432-441.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of dietary fat and cholesterol on milk composition, milk intake and cholesterol metabolism in the rabbit
AU - Whatley, B. J.
AU - Green, J. B.
AU - Green, M. H.
PY - 1981/1/1
Y1 - 1981/1/1
N2 - Sixteen female rabbits were fed one of four diets during lactation: 1) a commercial stock diet; 2) the stock diet with 5% added lard; 3) the stock diet with 5% lard and 0.25% cholesterol; or 4) the stock diet with 15% lard and 1% cholesterol. By days 30-35 of lactation, maternal plasma cholesterol concentrations were increased approximately 10-fold in group 3 and 100-fold in group 4 does compared to does in group 1. Milk cholesterol concentration was similar over lactation for does in group 1, 2 and 3, but was approximately 2 times higher in group 4 does. Milk triglyceride and protein concentrations and milk intake by the pups were not significantly influenced by maternal diet. Average cholesterol intake of pups nursed by group 4 does was significantly higher than that of other pups. Although plasma cholesterol concentration was significantly increased in group 2, 3 and 4 pups at weaning (age 5 weeks), there was no significant effect of maternal diet on plasma cholesterol at 6, 7 or 11 weeks of age after pups had been weaned to the stock diet. Similarly, liver cholesterol concentration was increased in pups from group 4 does at weaning, but these differences were no longer apparent at 11 weeks of age. These data suggest that severe maternal hypercholesterolemia induced by dietary fat and cholesterol in the rabbit can result in increased milk cholesterol concentration and consequent cholesterol intake by the pups. However, the associated elevations in pup plasma and liver cholesterol levels at weaning did not persist when pups were weaned to a low fat/low cholesterol diet.
AB - Sixteen female rabbits were fed one of four diets during lactation: 1) a commercial stock diet; 2) the stock diet with 5% added lard; 3) the stock diet with 5% lard and 0.25% cholesterol; or 4) the stock diet with 15% lard and 1% cholesterol. By days 30-35 of lactation, maternal plasma cholesterol concentrations were increased approximately 10-fold in group 3 and 100-fold in group 4 does compared to does in group 1. Milk cholesterol concentration was similar over lactation for does in group 1, 2 and 3, but was approximately 2 times higher in group 4 does. Milk triglyceride and protein concentrations and milk intake by the pups were not significantly influenced by maternal diet. Average cholesterol intake of pups nursed by group 4 does was significantly higher than that of other pups. Although plasma cholesterol concentration was significantly increased in group 2, 3 and 4 pups at weaning (age 5 weeks), there was no significant effect of maternal diet on plasma cholesterol at 6, 7 or 11 weeks of age after pups had been weaned to the stock diet. Similarly, liver cholesterol concentration was increased in pups from group 4 does at weaning, but these differences were no longer apparent at 11 weeks of age. These data suggest that severe maternal hypercholesterolemia induced by dietary fat and cholesterol in the rabbit can result in increased milk cholesterol concentration and consequent cholesterol intake by the pups. However, the associated elevations in pup plasma and liver cholesterol levels at weaning did not persist when pups were weaned to a low fat/low cholesterol diet.
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UR - http://www.scopus.com/inward/citedby.url?scp=0019434709&partnerID=8YFLogxK
M3 - Article
C2 - 7205400
AN - SCOPUS:0019434709
VL - 111
SP - 432
EP - 441
JO - Journal of Nutrition
JF - Journal of Nutrition
SN - 0022-3166
IS - 3
ER -