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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
28/11/2000 |
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Data da última atualização: |
02/08/2023 |
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Autoria: |
ORSKOV, E. R. |
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Título: |
Supplement strategies for ruminants and management of feeding to maximize utilization of roughages. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Preventive Veterinary Medicine, v. 38, n. 2/3, p. 179-185, Jan. 1999. |
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DOI: |
10.1016/s0167-5877(98)00123-8. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Principles of supplementation are discussed in respect of both, their positive and negative effects on roughage digestion and utilization by ruminants. It is pointed out that negative effects mainly occur when excessively processed concentrate is given in large quantities two times per day. This lowers rumen pH which in turn depresses cellulose digestion and intake of cellulosic feeds, leading to problems of acidosis and secondary ketosis due to off-feed conditions. To a large extent, such problems can be overcome by limited processing and feeding the concentrate mixed with the roughage. Supplements can also have positive effects by alleviating deficiencies such as nitrogen or by providing easily fermentable fiber to increase microbes for attachment to roughages. Supplements can increase microbial protein production and undegraded protein supply. It is emphasized that proper use and management of supplements can make the difference between profit and loss for small farmers. |
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Palavras-Chave: |
Digestao da celulose; Hydrogen-ion concentration; Suplementacao. |
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Thesagro: |
Acidose. |
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Thesaurus Nal: |
Acidosis; Adverse effects; Cattle feeding; Cellulases; Dietary supplements; Etiology; Females; Fermentation; Ketosis; Physical phenomena; Ruminant nutrition; Sheep feeding. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
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001 1524168
005 2023-08-02
008 1999 bl uuuu u00u1 u #d
024 7 $a10.1016/s0167-5877(98)00123-8.$2DOI
100 1 $aORSKOV, E. R.
245 $aSupplement strategies for ruminants and management of feeding to maximize utilization of roughages.$h[electronic resource]
260 $c1999
520 $aAbstract: Principles of supplementation are discussed in respect of both, their positive and negative effects on roughage digestion and utilization by ruminants. It is pointed out that negative effects mainly occur when excessively processed concentrate is given in large quantities two times per day. This lowers rumen pH which in turn depresses cellulose digestion and intake of cellulosic feeds, leading to problems of acidosis and secondary ketosis due to off-feed conditions. To a large extent, such problems can be overcome by limited processing and feeding the concentrate mixed with the roughage. Supplements can also have positive effects by alleviating deficiencies such as nitrogen or by providing easily fermentable fiber to increase microbes for attachment to roughages. Supplements can increase microbial protein production and undegraded protein supply. It is emphasized that proper use and management of supplements can make the difference between profit and loss for small farmers.
650 $aAcidosis
650 $aAdverse effects
650 $aCattle feeding
650 $aCellulases
650 $aDietary supplements
650 $aEtiology
650 $aFemales
650 $aFermentation
650 $aKetosis
650 $aPhysical phenomena
650 $aRuminant nutrition
650 $aSheep feeding
650 $aAcidose
653 $aDigestao da celulose
653 $aHydrogen-ion concentration
653 $aSuplementacao
773 $tPreventive Veterinary Medicine$gv. 38, n. 2/3, p. 179-185, Jan. 1999.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
