Allosuckling allows growing offspring to compensate for insufficient maternal milk in farmed guanacos (<i>Lama guanicoe</i>)

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dc.contributor.authorZapata, Beatriz
dc.contributor.authorCorrea, Loreto
dc.contributor.authorSoto-Gamboa, Mauricio
dc.contributor.authorLatorre, Etel
dc.contributor.authorGonzalez, Benito A.
dc.contributor.authorEbensperger, Luis A.
dc.date.accessioned2025-01-21T00:06:47Z
dc.date.available2025-01-21T00:06:47Z
dc.date.issued2010
dc.description.abstractWhile allonursing, the provision of milk to non-offspring by females, involves a potential cost to their own offspring, allosuckling, the suckling from females other than their own mother may allow offspring to compensate for previous deficiencies in maternal milk. We tested this hypothesis in farmed guanacos. Under the compensation hypothesis we predicted that mothers of calves exhibiting allosuckling should be in poorer physical condition and should exhibit relatively low acceptance rates to filial sucking attempts compared to mothers whose calf did not allosuckle. We also predicted that calves exhibiting frequent allosuckling should show similar or greater rates of gain in body weight. but similar total (or final) weight in the long term than calves that nursed from their mothers exclusively. We examined the potential effects of sex and order of birth dates of calves on allosuckling, and the effect of female Success during agonistic encounters with other females on allonursing. Two stable groups of 15 and 14 mother-offspring pairs of farmed guanacos were studied from birth to approximately 3 months of age. Allosuckling events comprised 5.7% of all suckling events. Allonursing was performed by 52% of dams and 62% of calves exhibited allosuckling. We found similar gain rates in body weight and total weight at 60 days of age between allosuckling calves and filial sucking calves, irrespective of whether their mothers allonursed or not (P > 0.1). Body weight of mothers whose calf allosuckled was significantly lower than that of mothers whose calves nursed from them exclusively (P = 0.02). In addition, the percentage of acceptance of filial suckling bouts was significantly lower for allosuckling calves (P = 0.004). There was no correlation between the frequency of allonursing and the success of dams during agonistic encounters (P > 0.22). Our findings are consistent with the hypothesis that guanaco calves used allosucking to compensate for previous deficiencies in maternal milk. (C) 2009 Elsevier B.V. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.applanim.2009.12.004
dc.identifier.eissn1872-9045
dc.identifier.issn0168-1591
dc.identifier.urihttps://doi.org/10.1016/j.applanim.2009.12.004
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95603
dc.identifier.wosidWOS:000274765100007
dc.issue.numero2-4
dc.language.isoen
dc.pagina.final126
dc.pagina.inicio119
dc.revistaApplied animal behaviour science
dc.rightsacceso restringido
dc.subjectAllosuckling
dc.subjectAllonursing
dc.subjectGuanacos
dc.subjectMaternal care
dc.subjectCompensation hypothesis
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleAllosuckling allows growing offspring to compensate for insufficient maternal milk in farmed guanacos (<i>Lama guanicoe</i>)
dc.typeartículo
dc.volumen122
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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