Results 81 to 90 of about 4,556,667 (235)

Curvas de crescimento na produção animal Growth curves in animal production

Revista Brasileira de Zootecnia, 2005
Foram discutidas as propriedades de sete modelos não-lineares, considerando-se o ajuste de curvas de crescimento na produção animal. Os modelos utilizados: Brody, Richards, Von Bertalanffy e duas alternativas de Gompertz e de Logístico foram ajustados ...
Alfredo Ribeiro de Freitas
doaj   +1 more source

Estimation of parameters obtained in the models that used the functions: Morgan-Mercer-Flodin, Gompertz and Von Bertalanffy, considering asymptotic weight as random at age “t”.

, 2023
Estimation of parameters obtained in the models that used the functions: Morgan-Mercer-Flodin, Gompertz and Von Bertalanffy, considering asymptotic weight as random at age “t”.
Flávio Luiz de Menezes (16274922), Welligton Conceição da Silva (15411482), José de Brito Lourenço Júnior (14204764), Raimundo Nonato Colares Camargo Júnior (15411485), José Ribamar Felipe Marques (16274934), Mérik Rocha-Silva (16274931), Cláudio Vieira de Araújo (15411500), Simone Inoe de Araújo (16274925), Naiana Leticia Pavan (16274928), Hipócrates de Menezes Chalkidis (3141717), André Guimarães Maciel e Silva (16274937)   +10 more
core   +1 more source

Residency and Space Use of Endangered Smoothhound Sharks (Mustelus mustelus) in Relation to Marine Protection and Demersal Longline Fishing Along South Africa's South Coast

Fisheries Management and Ecology, EarlyView.
ABSTRACT Shark populations are declining globally and the effectiveness of marine protected areas (MPAs) as a conservation tool may vary by species and environmental context. This study assessed space use and residency of smoothhound sharks (Mustelus mustelus)—an endangered, yet highly exploited shark—in relation to spatial protection and fishing risk ...
Eugin Bornman, Taryn S. Murray, Neil Hammerschlag, Enrico Gennari   +3 more
wiley   +1 more source

Modeling the weight gain of freshwater-reared rainbow trout ( Oncorhynchus mykiss ) during the grow-out phase

Revista Brasileira de Zootecnia, 2020
We used five nonlinear models to calculate the weight gain of rainbow trout (122.11±15.6 g) during the final grow-out phase of 98 days under three different feed types (two commercials diets, A and B, and one experimental diet, C) in triplicate groups ...
Peter Charrie Janampa-Sarmiento, Rodrigo Takata, Thiago Mendes de Freitas, Licius de Sá Freire, Marcelo Menezes de Britto Pereira, Vincent Lugert, Guilherme Melgaço Heluy, Marcelo Maia Pereira   +7 more
doaj   +1 more source

Parameters of the von Bertalanffy growth function model for two cohorts of Gacnik and Zakojska.

, 2014
Parameter estimates and 95% confidence intervals of the von Bertalanffy growth function model for two cohorts of Gacnik and Zakojska with individuals random effects and cohort as predictors for both and k (random-effects model) and non-linear least ...
Stephan Munch (628693), Marc Mangel (39580), Hans J. Skaug (234482), Simone Vincenzi (162868), Alain J. Crivelli (206135)   +4 more
core   +1 more source

Von Bertalanffy growth function fit to observed and simulated Warsaw grouper length-age data.

, 2020
Von Bertalanffy growth function fit to observed (blue triangles; n = 1,338) and simulated (gray circles; n = 5,000) nGOM Warsaw grouper length-age data utilizing the Bayesian model described by Taylor et al.
Laura Thornton (8357127), William F. Patterson III (8357130), Jeffrey P. Chanton (255108), Beverly K. Barnett (8357124), Robert Ahrens (6019631)   +4 more
core   +1 more source

Investigating the Dynamics of Sex‐Structured Stock Assessment Models Under Sexual Size Dimorphism

Fisheries Management and Ecology, EarlyView.
ABSTRACT The integration of separate sexes in stock assessment models represents an advancement towards more realistic modeling of interactions between fisheries and target species. However, increased model complexity can also introduce additional uncertainty into the modeling process.
Francisco Izquierdo, Marta Cousido‐Rocha, Massimiliano Cardinale, Maria Grazia Pennino, Andreia V. Silva, Cristina Silva, Hugo Mendes, Santiago Cerviño   +7 more
wiley   +1 more source

Comparative age and growth of common snook Centropomus undecimalis (Pisces: Centropomidae) from coastal and riverine areas in Southern Mexico

Revista de Biología Tropical, 2013
Common snook Centropomus unidecimalis is an important commercial and fishery species in Southern Mexico, however the high exploitation rates have resulted in a strong reduction of its abundances.
Martha A. Perera-Garcia, Manuel Mendoza-Carranza, Wilfrido Contreras-Sánchez, Allyse Ferrara, Maricela Huerta-Ortiz, Raúl E. Hernández-Gómez   +5 more
doaj   +2 more sources

Ajustes de curvas de crescimento em bovinos Nelore da região Norte do Brasil Fitting of growth curves of Nellore cattle from Northern Brazil

Revista Brasileira de Saúde e Produção Animal, 2011
Objetivou-se determinar o modelo mais adequado para descrever o crescimento de bovinos Nelore. Quatro modelos não-lineares (Brody, Von Bertalanffy, Gompertz e Logístico), foram ajustados pelo método de Gauss-Newton, mediante utilização do procedimento ...
Jorge Luis Ferreira, Ednira Gleida Marques, Marcelo Correa da Silva, Fernando Brito Lopes   +3 more
doaj  

STANDARD GROWTH CURVE FOR CHUB (Leuciscus cephalus L. 1758) IN CROATIA [PDF]

Croatian Journal of Fisheries, 1997
Chub (Leuciscus cephalus) is widely spread fish species and it inhabits most of Europe and some parts of Asia. It is also the dweller of different sections of rivers and stagnant waters and it eats both - animal and plant organisms.
Tomislav Treer, Dobrila Habeković, Ivica Aničić, Roman Safner, Andrea Kolak   +4 more
doaj