Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions

Trillmich F, Mueller B, Kaiser S, Krause J (2009)
PHYSIOLOGY & BEHAVIOR 96(3): 476-480.

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Abstract
In many environments, photoperiod is a reliable predictor of ecological conditions. Such predictability generally declines towards low latitudes as the yearly cycle becomes less marked. It has been claimed that photoperiodic effects are small in cavies and guinea pigs that reproduce throughout the year. We here investigated photoperiodic influences on the onset of puberty in female cavies (Cavia aperea) and show that photoperiod exerts a major influence. Female pups kept in groups of two matured at about 47 days when born into lengthening (from 10:14 to 12.5:11.5 L:D) and 79 days when born into shortening day length (from 145:9.5 to 12:12 L:D) and kept under identical short day conditions after weaning on day 20 of life (12.25:11.75 L:D). As shown previously, social conditions, especially the presence of an adult male, proved important modifiers of the onset of maturity in females. Differential stress cannot be responsible for the social effects on puberty as social conditions did not affect cortisol levels in young females. We conclude that photoperiod plays an important role in gearing the onset of cavy reproduction to the seasons and that specific male stimuli rather than unspecific effects of stressors accelerate female maturation. (C) 2008 Elsevier Inc. All rights reserved.
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Trillmich F, Mueller B, Kaiser S, Krause J. Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions. PHYSIOLOGY & BEHAVIOR. 2009;96(3):476-480.
Trillmich, F., Mueller, B., Kaiser, S., & Krause, J. (2009). Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions. PHYSIOLOGY & BEHAVIOR, 96(3), 476-480.
Trillmich, F., Mueller, B., Kaiser, S., and Krause, J. (2009). Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions. PHYSIOLOGY & BEHAVIOR 96, 476-480.
Trillmich, F., et al., 2009. Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions. PHYSIOLOGY & BEHAVIOR, 96(3), p 476-480.
F. Trillmich, et al., “Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions”, PHYSIOLOGY & BEHAVIOR, vol. 96, 2009, pp. 476-480.
Trillmich, F., Mueller, B., Kaiser, S., Krause, J.: Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions. PHYSIOLOGY & BEHAVIOR. 96, 476-480 (2009).
Trillmich, Fritz, Mueller, Birte, Kaiser, Sylvia, and Krause, Jana. “Puberty in female cavies (Cavia aperea) is affected by photoperiod and social conditions”. PHYSIOLOGY & BEHAVIOR 96.3 (2009): 476-480.
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6 Citations in Europe PMC

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The maternal social environment shapes offspring growth, physiology, and behavioural phenotype in guinea pigs.
von Engelhardt N, Kowalski GJ, Guenther A., Front. Zool. 12 Suppl 1(), 2015
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Seasonally different reproductive investment in a medium-sized rodent (Cavia aperea).
Rubensam K, Hribal R, Jewgenow K, Guenther A., Theriogenology 84(4), 2015
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Filial attachment and its disruption: insights from the guinea pig.
Hennessy MB., Dev Psychobiol 56(8), 2014
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Caspers BA, Schroeder FC, Franke S, Voigt CC., PLoS ONE 6(6), 2011
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