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    • Journal of Range Management, Volume 52 (1999)
    • Journal of Range Management, Volume 52, Number 4 (July 1999)
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    Botanical composition of cattle and vizcacha diets in central Argentina

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    Author
    Bontti, E. E.
    Boo, R. M.
    Lindström, L. I.
    Elia, O. R.
    Issue Date
    1999-07-01
    Keywords
    free range husbandry
    diversity
    Lagostomus maximus
    ambient temperature
    feces composition
    rain
    species differences
    grazing intensity
    diets
    cattle
    seasonal variation
    Argentina
    botanical composition
    grasses
    forage
    feeding preferences
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    Citation
    Bontti, E. E., Boo, R. M., Lindström, L. I., & Elia, O. R. (1999). Botanical composition of cattle and vizcacha diets in central Argentina. Journal of Range Management, 52(4), 370-377.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643911
    DOI
    10.2307/4003548
    Additional Links
    https://rangelands.org/
    Abstract
    Cattle (Bos taurus) and vizcacha (Lagostomus maximus) diets were examined monthly in the semiarid caldénal in central Argentina. Cow-calf operations are the most important economic activities within the region. In spite of a widespread distribution of the vizcacha in Argentina, comparative studies of the diet of cattle and vizcacha are scarce. The objective of this work was to analyze the botanical composition, seasonal trends, and possible dietary overlap between cattle and vizcacha. Diets were determined by microscopic analysis of cattle and vizcacha feces collected from November 1994 through December 1995 in a shrubland community of the southern caldénal. Grasses were the bulk of the diet for both herbivores. Piptochaetium napostaense (Speg.) Hack. was the most abundant grass in vizcacha (53%) and cattle (40%) diets. Prosopis caldenia Burk. pods partially (34%) replaced this grass in cattle diets during late summer and fall. Consumption of P. napostaense was generally higher (13%) in vizcachas than in cattle, especially during the dry period of the study (21%). During the drier months, cattle consumed more of the less preferred grasses (48%). Forbs were poorly represented in the diets perhaps because of scarce rains and low availability. Classification and ordination techniques revealed seasonal trends and overlapping diets. A greater overlap (75%) was found during the wet period due to simultaneous consumption of P. napostaense by both herbivores. Trends in diet diversity were similar with indices generally higher for cattle than for vizcachas, especially during the dry period.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003548
    Scopus Count
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    Journal of Range Management, Volume 52, Number 4 (July 1999)

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