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1. Growth models and the expected distribution of fluctuating asymmetry

Author:
Graham, John H.; Shimizu, Kunio; Freeman, D. Carl; Merkel, John; Emlen, John M.
Source:
Biological journal of the Linnean Society 2003 v.80 no.1 pp. 57-65
ISSN:
0024-4066
Subject:
normal distribution,   etc   ; growth models; mixing; tissues; variance;     Show all 5 Subjects
Abstract:
... Multiplicative error accounts for much of the size-scaling and leptokurtosis in fluctuating asymmetry. It arises when growth involves the addition of tissue to that which is already present. Such errors are lognormally distributed. The distribution of the difference between two lognormal variates is leptokurtic. If those two variates are correlated, then the asymmetry variance will scale with size ...
DOI:
10.1046/j.1095-8312.2003.00220.x

2. Development of a Stochastic Pig Compositional Growth Model

Author:
Schinckel, A.P.; Li, N.; Preckel, P.V.; Einstein, M.E.; Miller, D.
Source:
The Professional animal scientists 2003 v.19 no.3 pp. 255-260
ISSN:
1080-7446
Subject:
normal distribution,   etc   ; carcass composition; equations; growth models; lipids; prediction; statistical models; stochastic processes; swine; variance;     Show all 10 Subjects
Abstract:
... A stochastic pig compositional growth model was developed using mixed model nonlinear functions. Serial BW measurements were fitted to mixed model nonlinear equations with three parameters and two random effects. Empty body protein mass (EBPRO) data were predicted from serial real-time ultrasound and BW measurements. Predicted EBPRO data were fitted to a nonlinear function of predicted BW (PBW) wi ...

3. Genetic correlations between field test results of Swedish Warmblood Riding Horses as 4-year-olds and lifetime performance results in dressage and show jumping

Author:
Wallin, Lena; Strandberg, Erling; Philipsson, Jan
Source:
Livestock production science 2003 v.82 no.1 pp. 61-71
ISSN:
0301-6226
Subject:
normal distribution,   etc   ; Swedish Warmblood; field experimentation; gait; genetic correlation; heritability; horse riding; jumping; livestock production; mares; sports; stallions;     Show all 12 Subjects
Abstract:
... The main objective of this study was to estimate genetic correlations between traits of young sport horses (4 years old) evaluated in the Swedish Riding Horse Quality Test (RHQT) and later competition results in dressage and show jumping. The data comprised 3708 Warmblood horses born between 1968 and 1982 that had participated in the RHQT as 4-year-olds and 25 605 horses born between 1953 and 1995 ...
DOI:
10.1016/S0301-6226(02)00307-X

4. Blood metabolites and hemocyanin of the white shrimp, Litopenaeus vannamei: the effect of culture conditions and a comparison with other crustacean species

Author:
Pascual, C.; Gaxiola, G.; Rosas, C.
Source:
Marine biology 2003 v.142 no.4 pp. 735-745
ISSN:
0025-3162
Subject:
normal distribution,   etc   ; Litopenaeus vannamei; blood; crabs; glucose; hemocyanin; juveniles; lobsters; metabolites; normal values; physiological state; ponds; shrimp; tanks;     Show all 14 Subjects
Abstract:
... Oxyhemocyanin (OxyHc), blood protein, glucose, acylglycerol (AG), and lactate of Litopenaeus vannamei juveniles were investigated. Statistical analyses were done on baseline values for each metabolite and on OxyHc from shrimp cultured in outdoor (20-m² ponds) and indoor (90-l tanks). The values obtained were compared with blood metabolites reported in the literature for L. vannamei maintained unde ...
DOI:
10.1007/s00227-002-0995-2

5. Growth and production of Ophiocten gracilis (Ophiuroidea: Echinodermata) on the Scottish continental slope

Author:
Gage, J. D.
Source:
Marine biology 2003 v.143 no.1 pp. 85-97
ISSN:
0025-3162
Subject:
normal distribution,   etc   ; Ophiuroidea; biomass; breeding; growth models; microstructure; muscles; population density; postlarvae; scanning electron microscopy; seasonal variation; terraces; texture; time series analysis; Scotland;     Show all 15 Subjects
Abstract:
... Growth and production of the bathyal ophiurid brittle star Ophiocten gracilis was studied from skeletal growth bands and disc size frequencies of specimens collected in sled and trawl samples taken on the continental slope off Scotland. Growth bands showed up in SEM examination as ring-like zones in surface relief and texture of the stereom microstructure of the intervertebral muscle insertions on ...
DOI:
10.1007/s00227-003-1050-7