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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
22/06/2023 |
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Autoria: |
VOTH, E. H.; BRACK, H. C. |
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Título: |
A histologic technique for determinig feeding habits of small herbivores. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
Journal Wildlife Management, v. 37, p. 227-231, 1975. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The mountain beaver (Aplodontia rufa) was used in a feeding experiment involving 20 spe- cies of vascular plants. A foliar epidermal digestibility characteristic was measured. A fecal recognition item was a flat epidermal fragment that measured at least 0.1 mm in at least one direction. The number of recognition items per gram of dry weight of each plant eaten in captivity was determined and divided into a standard number, which was the number ( 11.0 ) of fragments counted per gram ( dry weight ) of sword- fern ( Polystichum mtAnitum ) ingested. The resulting conversion factor was called an equivalence factor. The equivalence factors varied through a 15-fold range from 0.8 for red alder (Alnus oregona) to 12.2 for western spring beauty ( Montia sibirica ). The conversion factors increase the accuracy of relative vol- umetric estimates of food intake based on histologic analysis of fecal samples collected in the field. Con- version factors can be predicted by correlating equivalence factors with moisture content arld reading fac- tors for unknown plants from a line of regression when the percentage dry weight of the plant has been determined. |
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Palavras-Chave: |
Tecnica histologica. |
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Thesagro: |
Dieta; Nutrição. |
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Thesaurus Nal: |
Animal feeding; Digestibility; Feeding behavior; Ruminant nutrition. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01783naa a2200217 a 4500
001 1521162
005 2023-06-22
008 1975 bl uuuu u00u1 u #d
100 1 $aVOTH, E. H.
245 $aA histologic technique for determinig feeding habits of small herbivores.$h[electronic resource]
260 $c1975
520 $aAbstract: The mountain beaver (Aplodontia rufa) was used in a feeding experiment involving 20 spe- cies of vascular plants. A foliar epidermal digestibility characteristic was measured. A fecal recognition item was a flat epidermal fragment that measured at least 0.1 mm in at least one direction. The number of recognition items per gram of dry weight of each plant eaten in captivity was determined and divided into a standard number, which was the number ( 11.0 ) of fragments counted per gram ( dry weight ) of sword- fern ( Polystichum mtAnitum ) ingested. The resulting conversion factor was called an equivalence factor. The equivalence factors varied through a 15-fold range from 0.8 for red alder (Alnus oregona) to 12.2 for western spring beauty ( Montia sibirica ). The conversion factors increase the accuracy of relative vol- umetric estimates of food intake based on histologic analysis of fecal samples collected in the field. Con- version factors can be predicted by correlating equivalence factors with moisture content arld reading fac- tors for unknown plants from a line of regression when the percentage dry weight of the plant has been determined.
650 $aAnimal feeding
650 $aDigestibility
650 $aFeeding behavior
650 $aRuminant nutrition
650 $aDieta
650 $aNutrição
653 $aTecnica histologica
700 1 $aBRACK, H. C.
773 $tJournal Wildlife Management$gv. 37, p. 227-231, 1975.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
