Characteristics of suckling stimulation determine the daily duration of mother‐young contact and milk output in rabbits

González‐Mariscal, Gabriela; Toribio, Ariadna; Gallegos, José Antonio; Serrano‐Meneses, Martín Alejandro

doi:10.1002/dev.21071

Cited by 19 publications

(14 citation statements)

References 37 publications

(51 reference statements)

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“…At behavioral level, experiments in the rabbit support the importance of suckling stimulus on the doe. It was found that there is a critical threshold, that is, amount of nipple stimulation, that determines the "turn-off" of the nursing bout and consequently the time in the nest box (González-Mariscal et al 2012 ). Importantly, the time that the mother spends inside the nest is normal when provided with 6-8 pups and occurs just once a day with circadian periodicity, but when fewer pups are provided she shows multiple entrances to the nest (González-Mariscal et al 2013 ).…”

Section: Which Is the Entraining Signal To Neuroendocrine Cells?mentioning

confidence: 95%

Behavioral, Physiological, and Neuroendocrine Circadian Rhythms During Lactation

Caba

Waliszewski

Meza

2014

Mechanisms of Circadian Systems in Animals and Their Clinical Relevance

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Lactation in mammals implies great challenges for the mothers, who must adapt their behavior and physiology to fulfi ll the costly demands of motherhood. Lactation is the main distinctive feature of mammals, and it is expressed in different modalities depending on the particular evolutionary characteristics of each species. Intense research, using mainly rodents and ungulates, is contributing to understand the complex physiological changes and their interaction with the nervous system during this period. Although this is a fi eld of intense research, very little is known about the circadian rhythms of the mother during lactation. In the present chapter, we explore the importance of circadian rhythms during this period, focusing mainly in the rabbit as a model. There is a major reason for emphasizing attention on this species. The mother rabbit nurses her pups just once a day, for a period of less than 5 min. Although this behavior has long been known, only in recent years has it been fi rmly established that this event occurs around every 24 h, that is, with circadian periodicity. This is a unique characteristic among mammals, and perhaps for this reason the circadian control of lactation had been underestimated in considering that most of the research during lactation had been conducted in other groups of mammals. Then, in this chapter we present behavioral, physiological, and neuroendocrine circadian rhythms during lactation in the rabbit, and whenever possible we include available literature in other mammal species, including humans.

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Section: Which Is the Entraining Signal To Neuroendocrine Cells?mentioning

confidence: 95%

Behavioral, Physiological, and Neuroendocrine Circadian Rhythms During Lactation

Caba

Waliszewski

Meza

2014

Mechanisms of Circadian Systems in Animals and Their Clinical Relevance

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“…Las conejas domésticas amamantan por primera vez inmediatamente tras el parto, y a partir de entonces normalmente lo hacen regularmente una vez al día durante un tiempo de entre tres y cinco minutos (González-Mariscal et al, 2013a). El amamantamiento ocurre prevalentemente con periodicidad circadiana unas horas antes del inicio del período de luz.…”

Section: Lactancia Y Desteteunclassified

“…De manera similar, se conoce que cada episodio de amamantamiento dura entre 3 y 5 minutos durante toda la lactancia (Zarrow et al, 1965;Lincoln, 1974;González-Mariscal et al, 1994). Sin embargo si se alteran las características normales de la succión, por ejemplo: reduciendo el número de crías que succionan (por debajo de 4; González-Mariscal et al, 2013a) o cubriendo los pezones maternos o los hocicos de las crías (González-Mariscal, 2007) se incrementa el tiempo que las madres pasan en el nido con la camada. Dado que existe una relación directa entre el número de crías amamantadas y la cantidad de oxitocina secretada (Fuchs y Wagner, 1963) hemos propuesto que esta hormona contribuye importantemente a mantener tanto la periodicidad circadiana del amamantamiento como la duración normal de los episodios de succión.…”

Section: A Excavación (G/día; Media) B Acarreo De Paja (G/día; Media)unclassified

Comportamiento materno y bienestar de la coneja doméstica y silvestre y su camada

Redondo

González‐Mariscal²,

López³

et al. 2015

ITEA

Self Cite

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ResumenEl conejo europeo (Oryctolagus cuniculus), además de tener importancia faunística en el Mediterráneo occidental, es una especie ganadera relevante que es la base de un subsector pecuario industrializado orientado a la producción de carne en varios países, sobre todo europeos, mientras que en algunos países en vías de desarrollo se explota bajo sistemas alternativos orientados a la integración de renta y a la seguridad alimentaria. A la orientación cárnica se suman otras aptitudes productivas heterogéneas que configuran una gran diversidad de sistemas de producción cunícola. Este trabajo revisa el comportamiento materno de la coneja y de su camada, incluyendo su regulación endocrina, tanto en el animal silvestre como en la producción cunícola comercial y alternativa, y se relaciona con los factores de manejo, con la productividad en granja y con el bienestar de la especie. Se analizan también las implicaciones que las normativas sobre bienestar animal comportan respecto al alojamiento, manejo y satisfacción de las necesidades etológicas de las conejas reproductoras y de los gazapos durante la cría, caracterizadas, fundamentalmente, porque en algunos países tienden a proporcionar más espacio y enriquecimiento ambiental en las jaulas. Palabras clave:Oryctolagus cuniculus, etología, cría, gazapo, endocrinología, alternativas. Abstract Maternal behaviour and welfare of the domestic and wild rabbit doe and its litterThe European rabbit (Oryctolagus cuniculus), in addition to its faunal interest in the western Mediterranean, is a relevant species which in several European countries is the basis of a meat-oriented, industrial livestock subsector, while in many developing countries rabbits are raised under alternative systems aimed at income integration and food security. In addition to meat production, other productive ori-* Autor para correspondencia: pedro@us.es http://dx

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“…Yet, the amount of suckling stimulation received at each nursing bout plays a crucial role in this regard. Thus, reducing litter size to four kits or less disrupts the circadian periodicity of nursing and increases the duration of suckling bouts . Moreover, does kept away from their litters will enter a kit‐containing nest box, presented to them at a given time of day, depending on (i) the time elapsed since the last suckling episode and (ii) the size of the litter nursed then .…”

Section: Introductionmentioning

confidence: 99%

Maternal responsiveness to suckling is modulated by time post‐nursing: A behavioural and c‐Fos/oxytocin immunocytochemistry study in rabbits

Jiménez

González‐Mariscal

2019

J Neuroendocrinology

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Doe rabbits nurse once/day for approximately 3 minutes, with circadian periodicity, inside the nest box. The amount of suckling received at each bout regulates this behaviour because reducing the litter size to four kits or less disrupts nursing circadian periodicity and increases suckling bout duration. Additionally, the likelihood that does will nurse kits at a given time of day depends on the time elapsed since the last suckling episode and the litter size nursed then. We hypothesised that the time elapsed since the last nursing would impact the number of c‐Fos immunoreactive (IR) cells observed after suckling five kits and also that observed before the next nursing (“no kits”). Suckling significantly increased, relative to “no kits”, the number of c‐Fos‐IR cells in the medial preoptic area and lateral septum but not in the bed nucleus of the stria terminalis (BNST), suprachiasmatic nucleus or ventromedial hypothalamus in does nursing at 18 or 24 hours after the previous bout. No effects of suckling were observed in mothers nursing at 6 hours. Does given kits at 3 hours post last suckling refused to nurse but, in the remaining three groups, all does nursed normally. At “no kits”, more c‐Fos‐IR cells were seen (in all regions except the BNST) in does given kits at 24 hours after the last nursing and killed 1 hour later (ie, 4 hours after lights on) than in those killed earlier. The percentage of oxytocinergic (OT) cells co‐expressing c‐Fos was not modified by nursing in the paraventricular or supraoptic nuclei but, in the latter, the largest number of total OT‐IR cells occurred at 18 and 24 hours post‐last nursing. In conclusion, the responsiveness of particular forebrain regions involved in regulating circadian rhythms, lactation, and maternal behaviour is modulated by suckling and time of day.

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Characteristics of suckling stimulation determine the daily duration of mother‐young contact and milk output in rabbits

Cited by 19 publications

References 37 publications

Behavioral, Physiological, and Neuroendocrine Circadian Rhythms During Lactation

Behavioral, Physiological, and Neuroendocrine Circadian Rhythms During Lactation

Comportamiento materno y bienestar de la coneja doméstica y silvestre y su camada

Maternal responsiveness to suckling is modulated by time post‐nursing: A behavioural and c‐Fos/oxytocin immunocytochemistry study in rabbits

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