Body composition and gut length of Akodon azarae [Muridae: Sigmodontinae]: relationship with energetic requirements

• Autorzy: Del V. J. C. , Busch C.
• Języki publikacji: EN

Abstrakty

EN

Akodon azarae (J. Fischer, 1829) is a small omnivorous murid rodent that lives in environments with seasonal fluctuations of food. Seasonal variation in its body com­position and gut length, in relation to reproductive status, was studied. Physical Condition Index (PCI) and body composition showed seasonal differences, however, there were no differences in intestine length. The PCI was higher for both mature males and reproductive females compared to immature males and non-reproductive females. Lipid, protein and ash content showed differences in relation to reproductive status. The results suggest that A. azarae meets the additional costs of pregnancy and lactation by increasing energy intake, without relying on reserves.

Słowa kluczowe

EN

relationship; gut length; Sigmodontinae; food energy; Akodon azarae; gut plasticity; Muridae; energetic requirement; rodent; body composition

• Wydawca: -
• Czasopismo: Acta Theriologica
• Rocznik: 2003
• Tom: 48
• Numer: 3
• Opis fizyczny: p.347-357,fig

Twórcy

autor

Del V. J. C.

• Universidad Nacional de Mar del Plata, CC 1245, Mar del Plata 7600, Argentina

autor

Busch C.

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