Data/hora: 03/06/2024 17:58:29

Provedor de dados: | 22
País: | Brazil
Título: | Técnicas para estudos de consumo de alimentos por ruminantes em pastejo: revisão
Autores: | Barros, C. S. de; Dittrich, J. R.; Monteiro, A. L. G.; Pinto, S.; Warpechowski, M. B.
Data: | 2010-12-17
Ano: | 2010
Palavras-chave: | Bocado; Comportamento ingestivo; Digestibilidade; Indicador; Pastagem.
Resumo: | Intake of grazing animals is influenced by several factors, and therefore it is difficult to define an appropriate methodology for its evaluation. Variables such as the animals’ activities during grazing, forage digestibility and animal production help the choice of the best grazing method, which, by its turn, results in a more economic production. The main ways for estimating animals’ intake are the use of direct or indirect measures and the study of ingestive behavior. Direct measures have as a principle the difference of mass before and after grazing, by measuring either the animal or the pasture. Indirect methodologies are based on studies on fecal yield and digestibility, with use of indicators. A methodology that studies ingestive behavior of grazing animals  uses as instruments the variables of bite (depth, mass, size) and the grazing time for estimating the animals’ intake. Studies aiming at comparing methodologies are of great importance, but they are scarce. There are several techniques to estimate the consumption of grazing ruminants, but all of them are limited and sources of error that must be carefully analyzed in order to allow the choice of the most appropriate technique for estimative and for the availability of financial and operational resources.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4569

10.1818/sap.v9i2.4569

Editor: | Scientia Agraria Paranaensis
Relação: | http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4569/3466
Formato: | application/pdf

Fonte:

Scientia Agraria Paranaensis; v. 9, n. 2 (2010); p. 05-24

1983-1471