RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS

In multiparous mammals there is a definite relation between the litter size N and the total weight of the litter W. Reasons are given showing that this relationship is independent of the mechanism of parturition. For various forms W = N(K) + const. Hence the average increment of W due to unit increa...

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Detalles Bibliográficos
Autores principales: Enzmann, E. V., Crozier, W. J.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1935
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2141398/
https://www.ncbi.nlm.nih.gov/pubmed/19872887
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author Enzmann, E. V.
Crozier, W. J.
author_facet Enzmann, E. V.
Crozier, W. J.
author_sort Enzmann, E. V.
collection PubMed
description In multiparous mammals there is a definite relation between the litter size N and the total weight of the litter W. Reasons are given showing that this relationship is independent of the mechanism of parturition. For various forms W = N(K) + const. Hence the average increment of W due to unit increase of N is directly proportional to W, inversely to N. This signifies proportionality between N and nutritive drain upon the mother, as well as equipartition among the members of the litter. K is non-specific, and is therefore regarded as a partition index.
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spelling pubmed-21413982008-04-23 RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS Enzmann, E. V. Crozier, W. J. J Gen Physiol Article In multiparous mammals there is a definite relation between the litter size N and the total weight of the litter W. Reasons are given showing that this relationship is independent of the mechanism of parturition. For various forms W = N(K) + const. Hence the average increment of W due to unit increase of N is directly proportional to W, inversely to N. This signifies proportionality between N and nutritive drain upon the mother, as well as equipartition among the members of the litter. K is non-specific, and is therefore regarded as a partition index. The Rockefeller University Press 1935-07-20 /pmc/articles/PMC2141398/ /pubmed/19872887 Text en Copyright © Copyright, 1935, by The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).
spellingShingle Article
Enzmann, E. V.
Crozier, W. J.
RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS
title RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS
title_full RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS
title_fullStr RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS
title_full_unstemmed RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS
title_short RELATION BETWEEN BIRTH WEIGHT AND LITTER SIZE IN MULTIPAROUS MAMMALS
title_sort relation between birth weight and litter size in multiparous mammals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2141398/
https://www.ncbi.nlm.nih.gov/pubmed/19872887
work_keys_str_mv AT enzmannev relationbetweenbirthweightandlittersizeinmultiparousmammals
AT crozierwj relationbetweenbirthweightandlittersizeinmultiparousmammals

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