Evidence map›Paper›PMID 36008507›Full record

ArticleScientific reports2022

Effects of maternal age and offspring sex on milk yield, composition and calf growth of red deer (Cervus elaphus).

F J Pérez-Barbería, A J García, M J Brewer, J Cappelli, M P Serrano, L Gallego, T Landete-Castillejos

Abstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

F J Pérez-BarberíaDepartment of Agroforestry Science and Technology and Genetics, Institute of Regional Development, Game and Livestock Resources Unit, University of Castilla-La Mancha, IREC, 02071, Albacete, Spain. j.perezbarberia@gmail.com.
A J GarcíaDepartment of Agroforestry Science and Technology and Genetics, Institute of Regional Development, Game and Livestock Resources Unit, University of Castilla-La Mancha, IREC, 02071, Albacete, Spain.
M J BrewerBiomathematics and Statistics Scotland (BioSS), Craigiebuckler, Aberdeen, AB15 8QH, Scotland, UK.
J CappelliDepartment of Agroforestry Science and Technology and Genetics, Institute of Regional Development, Game and Livestock Resources Unit, University of Castilla-La Mancha, IREC, 02071, Albacete, Spain.
M P SerranoDepartamento de Producción Agraria, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Polytechnic University of Madrid, 28054, Madrid, Spain.
L GallegoDepartment of Agroforestry Science and Technology and Genetics, Institute of Regional Development, Game and Livestock Resources Unit, University of Castilla-La Mancha, IREC, 02071, Albacete, Spain.
T Landete-CastillejosDepartment of Agroforestry Science and Technology and Genetics, Institute of Regional Development, Game and Livestock Resources Unit, University of Castilla-La Mancha, IREC, 02071, Albacete, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Differential maternal allocation theory states that mothers will invest more heavily in the offspring sex that will secure higher reproductive output. Senescence theory is concerned with the gradual deterioration of physiological function with age. We analysed the offspring sex-dependent response of calf growth and milk traits to mother age in an Iberian population of captive red deer (Cervus elaphus) using a 22 year time series longitudinal data set. Previous studies revealed that there was little evidence for the differential allocation theory on milk traits and that most studies lacked proper control for confounding factors. Our results indicated that (i) calf growth was offspring male-biased, negatively affected by mother age and positively influenced by mother weight and parity, and (ii) there was no support for differential allocation offspring sex-dependence in milk traits (yield, energy density, fat, protein and lactose content). Our findings suggest that maternal allocation responds to offspring energy requirements, which are mainly driven by offspring body weight, and contingent on mother age and weight and previous maternal reproductive effort.

Indexed as

DeerMilkAnimalsFemaleLactationLactoseMaleMaternal AgePregnancyLactose

Identifiers

PMID36008507
PMCPMC9411626

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.