Results 21 to 30 of about 2,759 (167)

Comparison of some non-linear functions to describe the growth for Linda geese with CART and XGBoost algorithms

Czech Journal of Animal Science, 2022
The aim of this study was to determine the best non-linear function describing the growth of the Linda goose breed. To achieve this aim, five non-linear functions, such as exponential, logistic, von Bertalanffy, Brody and Gompertz, were employed to ...
Cem Tirink, Hasan Önder, Sabri Yurtseven, Zeliha Kaya Akil   +3 more
doaj   +1 more source

Parâmetros genéticos da taxa de maturação e do peso assintótico de fêmeas da raça Nelore Genetic parameters of maturation rate and asymptotic weight of Nelore females

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Utilizaram-se 14.563 pesagens de 1158 fêmeas da raça Nelore, nascidas entre 1984 e 1995, pertencentes a 10 fazendas, distribuídas em sete estados do Brasil.
A. Del V. Garnero, C.R. Marcondes, L.A.F. Bezerra, H.N. Oliveira, R.B. Lôbo   +4 more
doaj   +1 more source

What Dynamic Approaches Have Taught Us About Cognition and What They Have Not: On Values in Motion and the Importance of Replicable Forms

Topics in Cognitive Science, EarlyView., 2023
Abstract Over the past several decades, research in the cognitive sciences has foregrounded the importance of active bodies and their continuous dependence on the changing environment, strengthening the relevance of dynamical models. These models have been steadily developed within the ecological psychology approach to cognition, which arguably ...
Joanna Rączaszek‐Leonardi
wiley   +1 more source

Nonlinear models for fitting growth curves of Nellore cows reared in the Amazon Biome

Revista Brasileira de Zootecnia, 2013
Growth curves of Nellore cows were estimated by comparing six nonlinear models: Brody, Logistic, two alternatives by Gompertz, Richards and Von Bertalanffy.
Kedma Nayra da Silva Marinho, Alfredo Ribeiro de Freitas, Alencariano José da Silva Falcão, Francisca Elda Ferreira Dias   +3 more
doaj   +1 more source

Analysis of Germination Curves of Cinchona officinalis L. (Rubiaceae) Using Sigmoidal Mathematical Models

International Journal of Agronomy, 2023
Seed germination is the fundamental phenomenon that determines the successful growth and development of each plant species, even more so in Cinchona officinalis, which is a forest species that stands out for its medicinal importance.
Lenin Quiñones-Huatangari, Annick Estefany Huaccha-Castillo, Franklin Hitler Fernandez-Zarate, Eli Morales-Rojas, Jenny Del Milagro Marrufo-Jiménez, Leslie Lizbeth Mejía-Córdova   +5 more
doaj   +1 more source

Análisis multimodelo del crecimiento de pseudoplatystoma orinocoense en la cuenca media del Orinoco, Venezuela

Biotecnología en el Sector Agropecuario y Agroindustrial, 2019
Entre las especies de mayor importancia comercial y pesquera de la pesca artesanal del rio Orinoco se encuentra Pseudopatystoma orinocoense, donde el desembarco de peces pequeños motivó la realización de estudios anteriores de evaluación de su población,
Angel Gonzáles, Jeremy Mendoza, Freddy Arocha, Arístide Marquez   +3 more
doaj   +1 more source

Classical nonlinear models to describe the growth curve for Murrah buffalo breed Modelos não-lineares clássicos para descrever a curva de crescimento de búfalos da raça Murrah

Ciência Rural, 2012
With the objective of to adjust nonlinear models for the growth curves for a buffaloes herd raised in floodable lands in Rio Grande do Sul state, monthly records measured from birth to two years-old of 64 males and 63 females born between 1982 and 1989 ...
Ronyere Olegário de Araújo, Cintia Righetti Marcondes, Maria Cecília Florisbal Damé, Analía del Valle Garnero, Ricardo José Gunski, Dionéia Magda Everling, Paulo Roberto Nogara Rorato   +6 more
doaj   +1 more source

The multiplicative heteroscedastic Von Bertalanffy model

Brazilian Journal of Probability and Statistics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Diniz, Carlos Alberto Ribeiro, Louzada-Neto, Francisco, Morita, Lia Hanna Martins   +2 more
openaire   +3 more sources

Growth and mortality of Sphoeroides testudineus (Tetraodontiformes: Tetraodontidae) in a tropical coastal lagoon in northwestern Yucatán Peninsula

Revista Mexicana de Biodiversidad, 2012
This study reports length-weight relationships and growth parameters for Sphoeorides testudineus from La Carbonera, a karstic tropical coastal lagoon on the northwestern coast of the Yucatan Peninsula, Mexico.
José Luis Bonilla-Gómez, Juani Tzeek-Tuz, Maribel Badillo, Xavier Chiappa-Carrara   +3 more
doaj   +1 more source

Optimal and near-optimal exponent-pairs for the Bertalanffy-Pütter growth model [PDF]

PeerJ, 2018
The Bertalanffy–Pütter growth model describes mass m at age t by means of the differential equation dm/dt = p * ma − q * mb. The special case using the von Bertalanffy exponent-pair a = 2/3 and b = 1 is most common (it corresponds to the von Bertalanffy ...
Katharina Renner-Martin, Norbert Brunner, Manfred Kühleitner, Werner-Georg Nowak, Klaus Scheicher   +4 more
doaj   +2 more sources