Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats

The intake and digestion by goats of urea-treated rice straw and untreated straws given alone or supplemented with urea were measured in a Latin square design study. Intake was measured when the straws were offered ad libitum. Digestibility and nitrogen (N) balance of the diets were measured at 85%...

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Main Authors: Tuen, A.A., Dahan, M.M., Young, B.A., Vijchulata, P.
Format: Article
Language:English
Published: Elsevier 1991
Online Access:http://psasir.upm.edu.my/id/eprint/112955/1/112955.pdf
http://psasir.upm.edu.my/id/eprint/112955/
https://linkinghub.elsevier.com/retrieve/pii/037784019190037S
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spelling my.upm.eprints.1129552025-01-27T06:49:51Z http://psasir.upm.edu.my/id/eprint/112955/ Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats Tuen, A.A. Dahan, M.M. Young, B.A. Vijchulata, P. The intake and digestion by goats of urea-treated rice straw and untreated straws given alone or supplemented with urea were measured in a Latin square design study. Intake was measured when the straws were offered ad libitum. Digestibility and nitrogen (N) balance of the diets were measured at 85% of the ad libitum intake. Organic matter intake (45.2 g kg-1 W0.75) and digestibility (578 g kg-1) of the total diet were higher for urea-treated straw than for supplemented straw (39.4; 534) or straw alone (41.1; 527). Urea supplementation of untreated straw had no significant effect on intake or digestibility. Rumen ammonia levels were similar in goats fed on urea-treated (42.7 mg l-1) and urea-supplemented (39.7 mg l-1) straw, and were much higher than those in goats fed on untreated straw (25.7 mg l-1). The positive response to urea-treated straw was thought to be due to its higher N content in the presence of higher digestible energy. The urea treatment apparently caused a change in the physical and chemical structure of the straw, resulting in increased digestible organic matter intake, whereas urea-added to the diet immediately before it was consumed did not affect intake or digestibility. Elsevier 1991 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/112955/1/112955.pdf Tuen, A.A. and Dahan, M.M. and Young, B.A. and Vijchulata, P. (1991) Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats. Animal Feed Science and Technology, 32 (4). pp. 333-340. ISSN 0377-8401; eISSN: 1873-2216 https://linkinghub.elsevier.com/retrieve/pii/037784019190037S 10.1016/0377-8401(91)90037-s
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The intake and digestion by goats of urea-treated rice straw and untreated straws given alone or supplemented with urea were measured in a Latin square design study. Intake was measured when the straws were offered ad libitum. Digestibility and nitrogen (N) balance of the diets were measured at 85% of the ad libitum intake. Organic matter intake (45.2 g kg-1 W0.75) and digestibility (578 g kg-1) of the total diet were higher for urea-treated straw than for supplemented straw (39.4; 534) or straw alone (41.1; 527). Urea supplementation of untreated straw had no significant effect on intake or digestibility. Rumen ammonia levels were similar in goats fed on urea-treated (42.7 mg l-1) and urea-supplemented (39.7 mg l-1) straw, and were much higher than those in goats fed on untreated straw (25.7 mg l-1). The positive response to urea-treated straw was thought to be due to its higher N content in the presence of higher digestible energy. The urea treatment apparently caused a change in the physical and chemical structure of the straw, resulting in increased digestible organic matter intake, whereas urea-added to the diet immediately before it was consumed did not affect intake or digestibility.
format Article
author Tuen, A.A.
Dahan, M.M.
Young, B.A.
Vijchulata, P.
spellingShingle Tuen, A.A.
Dahan, M.M.
Young, B.A.
Vijchulata, P.
Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
author_facet Tuen, A.A.
Dahan, M.M.
Young, B.A.
Vijchulata, P.
author_sort Tuen, A.A.
title Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
title_short Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
title_full Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
title_fullStr Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
title_full_unstemmed Intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
title_sort intake and digestion of urea-treated, urea-supplemented and untreated rice straw by goats
publisher Elsevier
publishDate 1991
url http://psasir.upm.edu.my/id/eprint/112955/1/112955.pdf
http://psasir.upm.edu.my/id/eprint/112955/
https://linkinghub.elsevier.com/retrieve/pii/037784019190037S
_version_ 1823093040617619456
score 13.24