Influence of the test situation on pup retrieval behavior of normal and undernourished lactating rats

Rocha, João Batista Teixeira da; Soares, Félix Alexandre Antunes; Mello, Carlos Fernando

doi:10.1590/s0100-879x2002000100013

Cited by 8 publications

(3 citation statements)

References 29 publications

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“…Pup retrieval behaviour, including success at retrieving the entire litter within the experimental period and latency to retrieve pups, was not significantly affected by group, F 0 diet, or F 1 exposure, although dams in the HF -hf group showed a non-significant impairment in retrieval compared to other groups. Other studies have suggested a link between diet and pup retrieval behaviours, but this is context-and age-dependent [18,29]. For example, in one study, dams on a HF diet demonstrated impaired pup retrieval on postnatal day 7 but not on postnatal day 4 [18], with the latter time point being close to our own study.…”

Section: Discussionsupporting

confidence: 84%

Neonatal mice exposed to a high-fat diet in utero influence the behaviour of their nursing dam

Baptissart

Lamb

et al. 2018

Proc. R. Soc. B.

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The behaviour of a nursing dam influences the development, physiology, and behaviour of her offspring. Maternal behaviours can be modulated both by environmental factors, including diet, and by physical or behavioural characteristics of the offspring. In most studies of the effects of the environment on maternal behaviour, F 0 dams nurse their own F 1 offspring. Because the F 1 are indirectly exposed to the environmental stressor in utero in these studies, it is not possible to differentiate between effects on maternal behaviour from direct exposure of the dam and those mediated by changes in the F 1 as a consequence of in utero exposure. In this study, we used a mouse model of high-fat (HF) diet feeding, which has been shown to influence maternal behaviours, combined with cross-fostering to discriminate between these effects. We tested whether the diet of the F 0 dam or the exposure experienced by the F 1 pups in utero is the most significant predictor of maternal behaviour. Neither factor significantly influenced pup retrieval behaviours. However, strikingly, F 1 in utero exposure was a significant predictor of maternal behaviour in the 15 min immediately following pup retrieval while F 0 diet had no discernable effect. Our findings suggest that in utero exposure to HF diet programmes physiological changes in the offspring which influence the maternal behaviours of their dam after birth.

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Section: Discussionsupporting

confidence: 84%

Neonatal mice exposed to a high-fat diet in utero influence the behaviour of their nursing dam

Baptissart

Lamb

et al. 2018

Proc. R. Soc. B.

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“…nest lining that was higher in restricted than ad libitum fed rabbits. In rats, Rocha et al (2002) concluded that pup retrieval behaviour of the undernourished mother was not impaired by dietary restriction.…”

Section: Reproductive Performancementioning

confidence: 99%

Flushing or doe relocation as biostimulation methods for improvement of sexual behaviour and performance of multiparous rabbit doe after a summer resting period

Manal¹

2010

World Rabbit Sci.

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ABSTRACT:A study was conducted to clarify the infl uence of fl ushing or doe relocation as biostimulation methods on oestrus response and subsequent performance on thirty NZW multiparous 10-11-month-old rabbit does after a twomonth resting period in summer. After weaning of their last litter in June, the does were not re-mated and were fed a 100 g daily ration till September, the end of resting period. Then the does were randomly allocated to three groups (10 does/group): a control group (C) in which does remated without oestrus synchronisation, a relocated group (R) and a fl ushed group (F). Relocation consisted of moving does to another room in cages similar to their initial cages 48 h before the intended mating. F does returned to ad libitum feeding one week before mating. After mating, all females were fed and housed under the same conditions. The following parameters were measured: oestrogen level at end of rest period and at mating time, oestrus response parameters, fertility rate, nest quality traits, milk production, litter and kit traits at birth and weaning, and doe weight at mating and kindling. Results obtained revealed that, under the condition of this experiment, fl ushing was superior to relocation as a biostimulation method, since does of F group responded by signifi cantly higher oestrogen level at mating, improved receptivity and fertility rates, higher milk production, and their litters were heavier at birth and weaning. No signifi cant differences were recorded between the different groups for the nest quality traits. On the other hand, doe relocation did not exert any signifi cant effect on oestrus response and subsequent performance of the rabbit does. In conclusion, a short fl ushing period of one week could be good biostimulation method for oestrus synchronisation and improvement of receptivity in multiparous restricted fed rabbit does after a long rest period.

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“…in order to facilitate nursing, dams adopt a nursing posture, arching the back and covering the pups, while licking them to keep their bodies clean and stimulate metabolism. until postnatal day 14, separating the pups from the dam leads the dam to repeatedly retrieve them into the nest [5,8,31], and this behavior is frequently used to evaluate parenting ability.…”

Section: Evaluation Of Maternal Behaviormentioning

confidence: 99%

Poor mother-offspring relationships in rats with <i>Cacna1a</i> mutation

et al. 2020

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Homozygous Groggy dams, which carry a Cacna1a missense mutation, often show no interest in their offspring, leading to frequent offspring deaths due to lack of nurturing. The present study aimed to clarify whether the Cacna1a mutation contributes to impaired attachment behaviors between dam and offspring. The open field test showed that homozygous female rats exhibited markedly short travel distance, whereas no difference was found between the motor activity of heterozygous females and that of wild types (WT). A series of behavioral tests was performed to compare the mother-offspring relationship between WT and heterozygous rats. Performance in the pup retrieval test was significantly less successful in heterozygous than WT dams. During the experiment, heterozygous dams spent significantly less time licking and crouching than WT dams. The offspring dam-seeking behavior test revealed that heterozygous pups' vocalizations were significantly less frequent and shorter than those of WT pups. Although no significant difference was found between WT and heterozygous offspring in the olfactory sense test, using a piece of chocolate, heterozygous pups took significantly longer to reach a sample of the dam's bedding. Taken together, these findings suggest that the Cacna1a mutation impairs both the dam's maternal behavior and the offspring's attachment behavior toward the dam.

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Influence of the test situation on pup retrieval behavior of normal and undernourished lactating rats

Cited by 8 publications

References 29 publications

Neonatal mice exposed to a high-fat diet in utero influence the behaviour of their nursing dam

Neonatal mice exposed to a high-fat diet in utero influence the behaviour of their nursing dam

Flushing or doe relocation as biostimulation methods for improvement of sexual behaviour and performance of multiparous rabbit doe after a summer resting period

Poor mother-offspring relationships in rats with <i>Cacna1a</i> mutation

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