Sleep—wakefulness rhythms in the rabbit

Pivik, R.T.; Bylsma, Frederick W.; Cooper, Peter

doi:10.1016/s0163-1047(86)80016-4

Cited by 24 publications

(17 citation statements)

References 22 publications

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“…Thus, locomotor activity, food and water intake, and hard feces and urine excretion are all reported to occur mainly in the dark hours (34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49) (Fig. 1).…”

Section: Daily Rhythms In the Laboratorymentioning

confidence: 99%

Diversity and Development of Circadian Rhythms in the European Rabbit

Jilge

Hudson

2001

Chronobiology International

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Three main concerns underlie this review: 1) The need to draw together the widely dispersed information available on the circadian biology of the rabbit. Although the rabbit is a classic laboratory mammal, this extensive body of information is often overlooked by chronobiologists, and despite several advantages of this species. In terms of its general biology the rabbit is the best studied laboratory mammal in the wild, it demonstrates a wide variety of robust circadian functions, and being a lagomorph, it provides a useful comparison with more commonly studied rodent species. 2) The need to more fully exploit a developmental approach to understanding circadian function, and the particular suitability of the rabbit for this. Female rabbits only visit their altricial young for a few minutes once every 24 h to nurse, and survival of the young depends on the tight circadian-controlled synchronization in behavior and physiology of the two parties. Patterns of circadian rhythmicity in neonatal pups associated with nursing do not form a smooth continuum into weaning and adult life, and may reflect the action of separate mechanisms operating in their own right. 3) Using information from the first two points, to emphasize the diversity and complexity of circadian rhythms underlying behavioral and physiological functions in adult and developing mammals. Information accruing on circadian functions in the rabbit makes it increasingly difficult to account for these in terms of one or two regulatory mechanisms or "oscillators." Thus, it is argued that in addition to the reductionist, molecular approaches currently dominating much of chronobiology, the study of circadian systems as emergent characteristics of whole organisms operating in complex environments merits special attention.

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Section: Daily Rhythms In the Laboratorymentioning

confidence: 99%

Diversity and Development of Circadian Rhythms in the European Rabbit

Jilge

Hudson

2001

Chronobiology International

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“…A further search revealed, however, that the eye movements during these episodes are infrequent, occurring only about once per minute on the average, and are apparently quite restricted in amplitude (Narebski, Tymicz and Lewosz, 1969 ;Pivik, Bylsma and Cooper, 1986). Moreover, when the animal is awake, it is unlikely that the aqueous in the closed eye is stirred because observation of an open eye under the slit lamp shows that its movements, as well as head movements, are normally rare (Maurice, 1995).…”

Section: A Test Of the Hypothesismentioning

confidence: 99%

The Von Sallmann Lecture 1996: An Ophthalmological Explanation of REM Sleep

Maurice

1998

Experimental Eye Research

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“…Nuboer et al, 1983) or nocturnal (e.g. Pivik et al, 1986). As a result of a series of longterm investigations, Jilge (1980;1991) reported characteristics of nocturnality in the laboratory rabbit.…”

Section: Introductionmentioning

confidence: 99%

Phase response curve to 1 h light pulses for the European rabbit (Oryctolagus cuniculus)

Kennedy

Hudson

2016

Chronobiology International

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While much is known about the circadian systems of rodents, chronobiological studies of other mammalian groups have been limited. One of the most extensively studied nonrodent species, both in the laboratory and in the wild, is the European rabbit. The aim of this study was to extend knowledge of the rabbit circadian system by examining its phasic response to light. Twelve Dutch-Himalayan cross rabbits of both sexes were allowed to free-run in constant darkness and then administered 1 h light pulses (1000 lux) at multiple predetermined circadian times. Changes in the phase of the rabbits' circadian wheel-running rhythms were measured after each light pulse and used to construct a phase-response curve (PRC). The rabbits' PRC and free-running period (τ) conformed to the empirical regularities reported for other predominantly nocturnal animals, including rodents and predatory marsupials. The results of the study are thus consistent with reports that the rabbit is essentially a nocturnal animal and show that it can entrain to light/dark (LD) cycles via discrete phase shifts. Knowledge about the rabbit's circadian range of entrainment to LD cycles gained in this study will be useful for examining the putative circadian processes believed to underlie the unusual rhythm of very brief, once-daily nest visits by nursing rabbit mothers and other nursing lagomorphs.

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Sleep—wakefulness rhythms in the rabbit

Cited by 24 publications

References 22 publications

Diversity and Development of Circadian Rhythms in the European Rabbit

Diversity and Development of Circadian Rhythms in the European Rabbit

The Von Sallmann Lecture 1996: An Ophthalmological Explanation of REM Sleep

Phase response curve to 1 h light pulses for the European rabbit (Oryctolagus cuniculus)

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