Small-Sample in Vivo Cellulose Digestion Procedure for Forage Evaluation

Lusk, J.W.; Browning, C.B.; Miles, J.T.

doi:10.3168/jds.s0022-0302(62)89329-1

Cited by 22 publications

(9 citation statements)

References 13 publications

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“…Nous avons ensuite utilise la formule de Elder et Rodgers (1974) L'exactitude de experience repose sur le postulat que les pastilles en matieres plastiques traversent le tractus digestif ä la meine vitesse que le bol alimentaire. La periode de digestion est tres variable chez les herbivores, de 3 ä 96 heures (Lusk et /., 1962), et dopend de divers facteurs dont la nature et la composition de ralimentation.…”

Section: ) Sur Le Terrainunclassified

Rendement d’assimilation et bilan énergétique chez les éléphanteaux d’Afrique (Loxodonta africana Blumenbach)

Monfort¹,

Monfort²

1979

Mammalia

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Le but de cet article est d'etablir les rendements bioenergetiques et le bilan nutritionnel des jeunes 61£phants.Deux Elephanteaux apprivois£s äg£s de 27 et 31 mois, ont ete maintenus en enclos et nourris des meines plantes que eel les qu'ils choisissent en liberte. La quantity de nourriture qu'ils ont mangle a et^ mesuree avec precision ainsi que les reject a provenant de cette nourriture.Les rlsultats donnent des taux de digestibility des aliments naturels (assimilation/consommation) de 38,8 ± 4,4 % et de 45,6 ± 2,8 % soit une moyenne de 42,1 %. Les rapports consqmmation/dofecation sont de 1,67 ± 0,11% et de 1,84 ± 0,10, soit une moyenne de 1,73.Ces rapports presentent un intdrSt particulier car ils permettent de connaltre la quantite de nourriture ingoroe sur le terrain et la part qui est assimilee grace a la mesure de la quantite et du taux de matieres f Scales gliminies par jour. Sur la base des rosultats obtenus, nous avons elabli un bilan energotique valable pour les elophanteaux en pleine poriode de croissance.(*) Avec la collaboration technique de Jean-Marc FROMENT.

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Section: ) Sur Le Terrainunclassified

Rendement d’assimilation et bilan énergétique chez les éléphanteaux d’Afrique (Loxodonta africana Blumenbach)

Monfort¹,

Monfort²

1979

Mammalia

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“…Estimates of the digestibility of rations for ruminant animals by the traditional crude fiber method are unsatisfactory (Van Soest 1963a). Recently developed procedures involving in vivo digestion in the rumen of material in small nylon bags (Lusk, Browning, and Miles 1962), in vitro digestion in rumen liquor (Tilley and Terry 1963), and solubility in acid-detergent solutions (Van Soest 1963a, b) give satisfactory estimates of the digestibility of plant materials by ruminant animals. These techniques overestimate digestibility by animals not capable of utilizing plant cell-wall components, including hemicellulose, cellulose, and lignin.…”

Section: Introductionmentioning

confidence: 99%

Relationships between Cell‐Wall Fractions, Nitrogen, and Standing Crop in Aquatic Macrophytes

Polisini¹,

Boyd²

1972

Ecology

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Shoot samples of 21 species of aquatic macrophytes were separated into cell—wall and noncell—wall fractions by digestion in a neutral—detergent solution. This method is useful for estimating the digestibility of plant production by native herbivores. Nitrogen content was also used as an indication of nutritive quality. Amounts of noncell—wall material and nitrogen in the dry matter decreased as shoot standing crops of the different species increased.

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“…Small bags of fine weave nylon, dacron, or silk varying from approximately 2" x 4" up to 6" x 12" and containing from 1 up to 50 grams of sample are suspended in the rumen for time periods varying from a few up to 96 hours (Cason, 1957";Burk et al, 1960;Lusk, 1961;Merrill, 1959;Tomlin, 1960";. Hoflund et al (1948) have found a disadvantage in the silkbag technique in that certain test materials such as paper pulp were inclined to become clumped in the bags.…”

Section: Nylon-bag Determinationsmentioning

confidence: 99%

“…Cason (1957) did not find such good agreement between silk bag and artificial rumen cellulose digestion but Merrill et al (1961) and Lusk (1961) in studying grass and alflafa hays found reasonably good agreement between nylon bag and artificial rumen cellulose digestion estimates.…”

Section: Rinse Procedures Effectmentioning

confidence: 99%

Micro-Methods for Nutritive Evaluation of Range Forages

Dyne¹

1962

Journal of Range Management

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for their suggestions, to Mr. A. A. Aguirre for his technical assistance, and to the staff of the Hopland Field Station for their cooperation in these investigations. This project partially supported by federal funds from Regional Research Project W-34-Range Livestock Nutrition. aClark, K. W. 1958. The adaptation of an artificial rumen technique to the estimation of the gross digestible energy of forages. Ph.D. Diss. Purdue Univ. 110 pp. Processing Of Inoculum And In Vitro Operation In the first series of trials the :

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Small-Sample in Vivo Cellulose Digestion Procedure for Forage Evaluation

Cited by 22 publications

References 13 publications

Rendement d’assimilation et bilan énergétique chez les éléphanteaux d’Afrique (Loxodonta africana Blumenbach)

Rendement d’assimilation et bilan énergétique chez les éléphanteaux d’Afrique (Loxodonta africana Blumenbach)

Relationships between Cell‐Wall Fractions, Nitrogen, and Standing Crop in Aquatic Macrophytes

Micro-Methods for Nutritive Evaluation of Range Forages

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