Applicability of indicators methods Chromic oxide and chremogens For determining apparent digestibility by brahman cattles (Bos Indicus) / Aplicabilidade dos métodos indicadores - óxido crômico e cromogênios - para a determinação da digestabilidade aparente, em zebu (Bis indicus)
Andreasi, Fernando; Masotti, Noé; Silva Marcondes Veiga, João.
Braz. j. vet. res. anim. sci;
6(4): 401-434, 1960.
Artigo
em Português
|
LILACS-Express
| ID: biblio-1471270
Resumo
A trial was carried out the objectives of which were: a) to examine the applicability of the indicator methods - chromic oxide and chromogens -, for determining the apparent digestibility and, b) to study the excretion pattern of the two indicators. As experimental animals, were used young Brahman cattle (Bos indicus) that were born free on the range while the experiment was conducted in the stall. A small amount of chromic oxide was administered in gelatin capsules once daily and the animals received a ration containing concentrate and roughages - Sugar cane (Saccharum officinarum L.) and Guatemala grass (Tripsacum laxum, Nash). Fecal samples were taken at 6 A. M., noon and 6 P. M. Feces were also totally collected during 7 days of the same collection period. Chromic oxide per cent of fecal dry matter and chromogens in units per gram of roughage or feces (dry basis), were determined on all the samples. The results referring to the digestibility obtained by the chromic oxide method comparing with the conventional showed significant differences in total, noon and 6 P. M., collections periods. The pooled values from 6 A. M. and noon, at one side, and 6 A. M.,noon and 6 P. M., at the other, showed no significant differences in relation with the conventional. In spite of the fact that a reduced number of chromogens units was found in the roughages and fecal samples, the results obtO artigo apresenta resumo em inglês.
Biblioteca responsável:
BR68.1
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