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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
17/10/2016 |
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Data da última atualização: |
20/10/2016 |
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Autoria: |
SOOFI, R.; FAHEY JUNIOR, G. C.; . BERGER, L. L. |
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Título: |
Rate and extent of digestion of cotton thread and of dry matter and cell wall constituents of soybean stover, alfalfa and their blends and rumen characteristics of sheep fed these forages. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Canadian Journal of Animal Science, v. 62, n. 2, p. 373-380, Jun. 1983. |
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DOI: |
10.4141/cjas83-046 |
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Idioma: |
Inglês |
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Conteúdo: |
The rate and extent of digestion of cell wall fractions of soybean stover (SBS), alfalfa (ALF) and mixtures of these forages and the interactions (associative effects) between their components were measured using dacron bags in situ in eight mature sheep. The rate and extent of digestion of cotton thread was also compared to that of cellulose in intact plant cell walls. The extent of dry matter digestibility (DMD) of SBS, 2 SBS:1 ALF, 1 SBS:2 ALF and ALF was 48.1, 56.5, 66.8 and 73.3%, respectively. Neutral detergent fiber (NDF), acid detergent fiber (ADF) and cellulose digestibilities for the 2 SBS:1 ALF blend were 4.2, 4.1 and 4.3 percentage units lower, respectively, than expected values. Observed digestibilities for various components of the 1 SBS:2 ALF blend were not statistically different from expected values. Cotton fiber digestion in the rumen of sheep fed all ALF diets neared completion in 48 8194;h (94.3%) and this value was significantly higher than those for sheep fed SBS (65.0%), 2 SBS:1 ALF (77.0%), and 1 SBS:2 ALF (88.5%). Rumen pH values, after feeding, tended to decline fastest in sheep fed ALF. Nitrogen recycling into the rumen occurred on all diets but was greater as quality of forage decreased. Molar concentrations of volatile fatty acids (VFA) increased after feeding in all instances. Key words: Sheep, soybean stover, alfalfa, associative effects, in situ dacron bag, cellulose digestion |
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Palavras-Chave: |
Associative effects; Cellulolysis; Digestão da celulose; In situ dacron bag; Soybean stover. |
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Thesagro: |
Alfafa; Medicago Sativa; Ovino. |
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Thesaurus Nal: |
Sheep. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02286naa a2200265 a 4500
001 2054824
005 2016-10-20
008 1983 bl uuuu u00u1 u #d
024 7 $a10.4141/cjas83-046$2DOI
100 1 $aSOOFI, R.
245 $aRate and extent of digestion of cotton thread and of dry matter and cell wall constituents of soybean stover, alfalfa and their blends and rumen characteristics of sheep fed these forages.
260 $c1983
520 $aThe rate and extent of digestion of cell wall fractions of soybean stover (SBS), alfalfa (ALF) and mixtures of these forages and the interactions (associative effects) between their components were measured using dacron bags in situ in eight mature sheep. The rate and extent of digestion of cotton thread was also compared to that of cellulose in intact plant cell walls. The extent of dry matter digestibility (DMD) of SBS, 2 SBS:1 ALF, 1 SBS:2 ALF and ALF was 48.1, 56.5, 66.8 and 73.3%, respectively. Neutral detergent fiber (NDF), acid detergent fiber (ADF) and cellulose digestibilities for the 2 SBS:1 ALF blend were 4.2, 4.1 and 4.3 percentage units lower, respectively, than expected values. Observed digestibilities for various components of the 1 SBS:2 ALF blend were not statistically different from expected values. Cotton fiber digestion in the rumen of sheep fed all ALF diets neared completion in 48 8194;h (94.3%) and this value was significantly higher than those for sheep fed SBS (65.0%), 2 SBS:1 ALF (77.0%), and 1 SBS:2 ALF (88.5%). Rumen pH values, after feeding, tended to decline fastest in sheep fed ALF. Nitrogen recycling into the rumen occurred on all diets but was greater as quality of forage decreased. Molar concentrations of volatile fatty acids (VFA) increased after feeding in all instances. Key words: Sheep, soybean stover, alfalfa, associative effects, in situ dacron bag, cellulose digestion
650 $aSheep
650 $aAlfafa
650 $aMedicago Sativa
650 $aOvino
653 $aAssociative effects
653 $aCellulolysis
653 $aDigestão da celulose
653 $aIn situ dacron bag
653 $aSoybean stover
700 1 $aFAHEY JUNIOR, G. C.
700 1 $a. BERGER, L. L.
773 $tCanadian Journal of Animal Science$gv. 62, n. 2, p. 373-380, Jun. 1983.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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