Consumo y eficiencia digestiva del Mara, Dolichotis patagonum (Rodentia: Caviidae)

Authors

  • Maura B. Kufner Instituto Argentino de hivestigaciones de las zones Aridas (IADIZA) Mendoza, Argentina.
  • Guillermo Durañona Instituto National de Tecnología Agropecuaria (INTA), San Carlos de Bariloche, Argentina.

Abstract

Determinations of forage requirements and food conversion efficiency are useful to evaluate the effect of wild herbivores on natural pastures. This paper provides basic information on consumption and digestive efficiency of the niara, Dolichotis patagonum. Voluntary ingestion and in vivo digestibility methodology was applied with six adult maras confined in metabolic cages. Daily nican intake of dry matter per body weight was 4.3 % and dgestibility of dry matter was 0.57. Both figures show that the niara ís a highly efficient herbivore. The average daily forage consumed by mara ín captivity, was jound to be 2.53.11 g. Indirect estimations of consumption in nalitral range freedom gave higher values probably due to food quality and activity of the animals. A methodical integration of this species into productive systems ís suggested, considering its feeding characteristics and successful adaptation to arid lands, in order to improve its conservation status.

References

Amaya, J. N., G. Duranona y E. Domingo. 1980. Ingestion voluntaria de la materia seca en conejos y ovinos en cautividad. Memorias Técnicas INTA 4:71-75.

Arnold, 1. F. 1942. Forage consumption and preferences of experimentally fed Arizona and Antelope Jackrabbits. University of Arizona Agr. Fxp. Slit. Bull. 98:51-86.

Arnold, J. F, and 11. G. Reynolds. 1943. Droppings of Arizona and Antelope Jackrabbits and the pellet census. J. Wildlife Management. 7:322-327.

Bucher. E. 11. 1987. Fauna silvestre chaquefa ¿cómo manejarla?. Flora, Fauna y Areas Silvestres 3:21-24. IFAO-PNUMA.

Demarquilly. C.. J. Andricu y D. Sauvant. 1978. Alimentation des rumiants. INRA. Versailles, 597 pp.

Durañona. G. 1981. Metodologia para la determination de ingestión voluntaria, coeficiente de digestibilidad y balance nutritional en guanacos (Lama guanicoe). Resumen metodológico interno INTA: I-4.

Hansen, R. M. 1972. Estimations of herbage intake from Jackrabbit feces. J. Range Management 25:468-471.

Harris, L. E. 1970. Métodos para et análisis quimico y la evaluation biológica de alimentos para animales. Center for Trop. Comp. Project, Ed., 438 pp.

Jackson, J. E. 1985. Ingestión voluntaria y digestibilidad en la vizcacha (Lagostomus maximus). Rev. Arg. Prod. Anim. 5:113-119.

Kufner, M. 13. y A. P. Shriller. 1987. Composición botánica de la dicta del mara (Dolicholis patagonum) y del ganado bovino en cl Monte mendocino. Rev. Arg. Prod. Anim. 7:255-264.

Kufner, M. 13. 1989. La distribución del mara (Dolichotis patagonum) según criterios ecológicos e históricos. Doñana Acta Vertebrada 16:309-315.

Van Soest. P. .1. and R. 1 I. Wine. 1967. Use of detergents in the analysis of fibrous feeds. IV. The determinations of plant cell wall constituents .I. Assoc. Official Anal. Chem 50:50.

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Published

1991-06-01

How to Cite

Kufner, M. B., & Durañona, G. (1991). Consumo y eficiencia digestiva del Mara, Dolichotis patagonum (Rodentia: Caviidae). Ecología Austral, 1(1), 050–055. Retrieved from https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1749

Issue

Vol. 1 No. 1 (1991)

Section

Articles

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