נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
The effects of starch- and pectin-rich diets on quantitative aspects of digestion in sheep
Year:
1989
Source of publication :
Animal Feed Science and Technology
Authors :
אסט, ישעיהו
;
.
בן גדליה, דניאל
;
.
יוסף, אדית
;
.
מירון, יהושע
;
.
Volume :
24
Co-Authors:
Ben-Ghedalia, D., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Yosef, E., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Miron, J., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Est, Y., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
289
To page:
298
(
Total pages:
10
)
Abstract:
Rumen- and duodenal-cannulated sheep were used to study the effect of pectin-rich vs. starch-rich diets on rumen parameters, digestibility of monosaccharide residues and quantitative aspects of nitrogen (N) metabolism. The pectin-rich diet consisted of dried citrus pulp plus soya-bean meal and was coded DCP; the starch-rich diet consisted of barley plus a small proportion of citrus pulp and was coded B. The concentrate mixtures comprised 80% of the ration's dry matter (DM) and were complemented with 20% lucerne hay. Both diets were equinitrogenous. Pectic uronic acid residues (PUR) and fructose comprised the bulk of rapidly fermentable carbohydrates in the DCP diet and α-glucose in the B ration. The digestibility values of PUR, fructose and glucose residues were high (91-99%), irrespective of diet; their digestion being nearly completed in the reticulo-rumen. Organic matter (OM) was equally digestible in both diets, but the cell walls (CW) in the DCP diet were 16% more digestible than in the B ration. Rumen pH was 6.42 and 6.18 in the DCP and B treatments, respectively. The acetate propionate ratio in the rumen was higher in the DCP than in the B treatment. Irrespective of diet, there was a net gain of N in the stomachs, but the flow of N to the duodenum was higher in the DCP than in the B sheep. However, the amount of total N absorbed from the intestine was somewhat higher in the DCP treatment. In conclusion, dried citrus pulp, even at a high proportion of the diet, creates favourable conditions for cellulolysis in the rumen and has a positive effect on the supply of N to the intestine. © 1989.
Note:
Related Files :
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/0377-8401(89)90150-8
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20242
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:35
Scientific Publication
The effects of starch- and pectin-rich diets on quantitative aspects of digestion in sheep
24
Ben-Ghedalia, D., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Yosef, E., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Miron, J., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
Est, Y., Institute of Animal Science, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel
The effects of starch- and pectin-rich diets on quantitative aspects of digestion in sheep
Rumen- and duodenal-cannulated sheep were used to study the effect of pectin-rich vs. starch-rich diets on rumen parameters, digestibility of monosaccharide residues and quantitative aspects of nitrogen (N) metabolism. The pectin-rich diet consisted of dried citrus pulp plus soya-bean meal and was coded DCP; the starch-rich diet consisted of barley plus a small proportion of citrus pulp and was coded B. The concentrate mixtures comprised 80% of the ration's dry matter (DM) and were complemented with 20% lucerne hay. Both diets were equinitrogenous. Pectic uronic acid residues (PUR) and fructose comprised the bulk of rapidly fermentable carbohydrates in the DCP diet and α-glucose in the B ration. The digestibility values of PUR, fructose and glucose residues were high (91-99%), irrespective of diet; their digestion being nearly completed in the reticulo-rumen. Organic matter (OM) was equally digestible in both diets, but the cell walls (CW) in the DCP diet were 16% more digestible than in the B ration. Rumen pH was 6.42 and 6.18 in the DCP and B treatments, respectively. The acetate propionate ratio in the rumen was higher in the DCP than in the B treatment. Irrespective of diet, there was a net gain of N in the stomachs, but the flow of N to the duodenum was higher in the DCP than in the B sheep. However, the amount of total N absorbed from the intestine was somewhat higher in the DCP treatment. In conclusion, dried citrus pulp, even at a high proportion of the diet, creates favourable conditions for cellulolysis in the rumen and has a positive effect on the supply of N to the intestine. © 1989.
Scientific Publication
You may also be interested in