Spontaneous alternation in Mesocricetus auratus: Age differences
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چکیده
منابع مشابه
DEMODICOSIS IN GOLDEN HAMSTER (Mesocricetus auratus) - FIRST CASE IN BRAZIL (DEMODICIOSE EM GOLDEN HAMSTER (Mesocricetus auratus) - PRIMO RELATO NO BRASIL)
1 Professor de Semiologia e Clínica Médica – FFALM – Bandeirantes – PR e Doutorando do Depto. de Reprodução Veterinária e Radiologia Animal -FMVZ-UNESP/Botucatu – SP. Endereço para correspondência: Hospital Veterinário FFALM, BR 369, Km 54, Cx. Postal: 261, Bandeirantes PR, 86360-000. 2 Faculdade de Medicina Veterinária e Zootecnia (FMVZ) – Universidade Estadual Paulista (Unesp), Distrito de Ru...
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Purpose: To study the integration of keloid heterograft in hamster (Mesocricetus auratus) cheek pouch. Methods: The sample is formed by 18 male hamsters, heterogenic ones, aged between 10 and 14 weeks. Keloid fragments were obtained from keloid scars of the breast region of adult female mulatto patient. Each hamster received keloid fragments into both of its pouches, in a total of 36 grafted fr...
متن کاملRenal function in the hibernating, and hypothermic hamster Mesocricetus auratus.
Plasma and urine concentrations of Na+, K+, and urea were examined in hibernating, hypothermic, and normothermic hamsters. Plasma Na+ and K+ appear unaffected by 48 h of hypothermia (T-re 7 degrees C); however, plasma Na+ increased (P smaller than 0.05) from control values of 125.8 plus or minus 10.2 to 173 plus or minus 9.2 meg/liter in hibernators. Plasma K+ of the hibernator increased to 9.6...
متن کاملEnhanced longevity in tau mutant Syrian hamsters, Mesocricetus auratus.
The single-gene mutation tau in the Syrian hamster shortens the circadian period by about 20% in the homozygous mutant and simultaneously increases the mass-specific metabolic rate by about 20%. Both effects might be expected to lead to a change in longevity. To test such expectations, the life span of male and female hamsters from three genotypes (wild-type, heterozygous, and homozygous tau mu...
متن کاملThe maternal behaviour cycle in golden hamsters (Mesocricetus auratus).
Maternal behaviour in golden hamsters has been the subject of several studies (ROWELL 1960, 1961 a, 1961 b; LOTT 1962; NOIROT & RICHARDS 1966; RICHARDS 1966 a, 1966 b). Most of these have investigated the response to the presentation of pups placed outside the nest by the experimenter, analysing the functional relations between test behaviour and such variables as reproductive stage, hormonal s...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1968
ISSN: 0033-3131
DOI: 10.3758/bf03331508