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פותח על ידי קלירמאש פתרונות בע"מ -
Self-regulation of intake of polyethylene glycol by sheep fed diets varying in tannin concentrations
Year:
2000
Source of publication :
Journal of Animal Science
Authors :
סילניקוב, ניסים
;
.
פרבולוצקי, אבי
;
.
Volume :
78
Co-Authors:
Provenza, F.D., Department of Rangeland Resources, Utah State University, Logan, UT 84322-5230, United States
Burritt, E.A., Department of Rangeland Resources, Utah State University, Logan, UT 84322-5230, United States
Perevolotsky, A., Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Silanikove, N., Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
1206
To page:
1212
(
Total pages:
7
)
Abstract:
Tannins occur in many plant species, and they often suppress intake by reducing nutrient availability or by causing malaise. Polyethylene glycol (PEG) binds to tannins and may thereby increase the availability of macronutrients and decrease malaise. Supplemental PEG increases intake of tannin-containing plants by sheep, goats, and cattle. Given the strong response to supplemental PEG, we speculated that animals might self-regulate their intake of PEG when offered foods high in tannins. The objective of the first experiment was to determine if the amount of supplemental PEG (0, 25, 50, 75, or 100 g; molecular weight, 3,350) affected intake by lambs of a food (milo-tannin mix) containing 20% quebracho tannin. There was a linear relationship (Y = 272 + 1.2X; R2 = .86; P = .023) between the amount of supplemental PEG ingested and the subsequent intake of milo-tannin food by lambs. The objective of the second experiment was to determine whether lambs self-regulated intake of PEG when fed a ration that contained 0, 5, 10, 15, or 20% quebracho tannin and whether they adjusted their intake of PEG when tannin was removed from the diet. There was a positive relationship between the amount of PEG ingested and intake of food and tannin (P = .0001). Lambs fed high-tannin diets ate more PEG than controls (P = .03). Lambs fed the 20% tannin diet ate the most PEG, and controls ate the least PEG. Tannin limited intake of the diets, but PEG attenuated the response to a great degree (P = .065). Immediately after tannin was removed from the ration, lambs that formerly had been fed the 20% tannin ration ate more PEG than lambs fed the other rations (P = .0075). Ten of the lambs (5 from the 20% tannin group, 1 from the 15% tannin, and 2 each from the 10 and 5% groups) continued to eat PEG for 7 d after tannin was removed from their ration. When they were tested again 6 wk after the trial and offered tannin-free diets, their intake of PEG had decreased.
Note:
Related Files :
Animal
Animals
article
caloric intake
Food Preferences
metabolism
Polyethylene Glycol
sheep
tannin
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20417
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:36
You may also be interested in
Scientific Publication
Self-regulation of intake of polyethylene glycol by sheep fed diets varying in tannin concentrations
78
Provenza, F.D., Department of Rangeland Resources, Utah State University, Logan, UT 84322-5230, United States
Burritt, E.A., Department of Rangeland Resources, Utah State University, Logan, UT 84322-5230, United States
Perevolotsky, A., Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Silanikove, N., Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Self-regulation of intake of polyethylene glycol by sheep fed diets varying in tannin concentrations
Tannins occur in many plant species, and they often suppress intake by reducing nutrient availability or by causing malaise. Polyethylene glycol (PEG) binds to tannins and may thereby increase the availability of macronutrients and decrease malaise. Supplemental PEG increases intake of tannin-containing plants by sheep, goats, and cattle. Given the strong response to supplemental PEG, we speculated that animals might self-regulate their intake of PEG when offered foods high in tannins. The objective of the first experiment was to determine if the amount of supplemental PEG (0, 25, 50, 75, or 100 g; molecular weight, 3,350) affected intake by lambs of a food (milo-tannin mix) containing 20% quebracho tannin. There was a linear relationship (Y = 272 + 1.2X; R2 = .86; P = .023) between the amount of supplemental PEG ingested and the subsequent intake of milo-tannin food by lambs. The objective of the second experiment was to determine whether lambs self-regulated intake of PEG when fed a ration that contained 0, 5, 10, 15, or 20% quebracho tannin and whether they adjusted their intake of PEG when tannin was removed from the diet. There was a positive relationship between the amount of PEG ingested and intake of food and tannin (P = .0001). Lambs fed high-tannin diets ate more PEG than controls (P = .03). Lambs fed the 20% tannin diet ate the most PEG, and controls ate the least PEG. Tannin limited intake of the diets, but PEG attenuated the response to a great degree (P = .065). Immediately after tannin was removed from the ration, lambs that formerly had been fed the 20% tannin ration ate more PEG than lambs fed the other rations (P = .0075). Ten of the lambs (5 from the 20% tannin group, 1 from the 15% tannin, and 2 each from the 10 and 5% groups) continued to eat PEG for 7 d after tannin was removed from their ration. When they were tested again 6 wk after the trial and offered tannin-free diets, their intake of PEG had decreased.
Scientific Publication
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