منابع مشابه
Allometric growth and sperm competition in fishes
The allometric relationship between body mass and gonad mass in males of 23 fish species from 11 families was examined. There was no evidence of a single allometry for all fishes. A cross species analysis suggested a scaling coefficient of 1 04, which was significantly different from a previous study that reported a scaling coefficient of 0 904. A within species analysis generated scaling coeff...
متن کاملAllometric Growth of Tissues in Pig Hams
The aim of this study was to investigate the influence of MHS genotype on growth and development of muscle and fatty tissue in pig hams. The investigation was performed on 72 barrows divided into 4 groups according to genotype (NN and Nn) and feeding regime (standard and intensive). The data for analyses were collected by MRT imaging; the coefficients of allometric growth were calculated using ...
متن کاملChanges in testicular allometric growth curves.
Objective criteria are needed for defining, in various animal species, changes occurring at puberty. Particularly required are estimates of the relationship of alterations in the growth of the whole body to the sex organs and the secondary sexual characteristics. A procedure that has been widely employed has been to plot testicular weight as a function of time and to observe inflection points.'...
متن کاملAllometric growth in the extant coelacanth lung during ontogenetic development
Coelacanths are lobe-finned fishes known from the Devonian to Recent that were long considered extinct, until the discovery of two living species in deep marine waters of the Mozambique Channel and Sulawesi. Despite extensive studies, the pulmonary system of extant coelacanths has not been fully investigated. Here we confirm the presence of a lung and discuss its allometric growth in Latimeria ...
متن کاملAllometric vs. Dynamic Models in the Investigation of Pig Growth
A total of 68 barrows, divided into 4 groups regarding the MHS genotype and feeding regime (intensive and restrictive). Data on muscle and fat growth were obtained by magnetic resonance imaging (MRI). Allometric growth analysis showed that muscle tissue grew proportionally with the increase of live weight; fat grew faster in relation to live weight in all investigated groups of pigs. Significan...
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ژورنال
عنوان ژورنال: Nature
سال: 1954
ISSN: 0028-0836,1476-4687
DOI: 10.1038/173957a0