D
Douglas dos Santos Pina
Researcher at University of the Fraser Valley
Publications - 38
Citations - 617
Douglas dos Santos Pina is an academic researcher from University of the Fraser Valley. The author has contributed to research in topics: Dry matter & Silage. The author has an hindex of 15, co-authored 28 publications receiving 561 citations. Previous affiliations of Douglas dos Santos Pina include Universidade Federal de Viçosa & National Council for Scientific and Technological Development.
Papers
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Journal ArticleDOI
Endogenous fraction and urinary recovery of purine derivatives obtained by different methods in Nellore cattle.
Analívia Martins Barbosa,Rilene Ferreira Diniz Valadares,S.C. Valadares Filho,Douglas dos Santos Pina,Douglas dos Santos Pina,Edenio Detmann,Maria Ignez Leão +6 more
TL;DR: The data suggest that in Nellore heifers the respective values of endogenous PD excretion, urinary recovery, and true digestibility of RNA in the small intestine were 0.30, 0.80, and 0.93, respectively.
Journal ArticleDOI
Meta-análise do impacto da fibra em detergente neutro sobre o consumo, a digestibilidade e o desempenho de vacas leiteiras em lactação
André Soares de Oliveira,Edenio Detmann,José Maurício de Souza Campos,Douglas dos Santos Pina,Shirley Motta de Souza,Marcone Geraldo Costa +5 more
TL;DR: In this paper, the effects of the chemical characteristics and in vivo NDF digestibility (IVNDFD) on intake, digestibility and performance of dairy cows in fedlot by using a meta-analysis procedure from 285 observations of sixexperiments.
Journal ArticleDOI
Prediction of the energy value of cattle diets based on the chemical composition of the feeds under tropical conditions
Edenio Detmann,S.C. Valadares Filho,Douglas dos Santos Pina,Lara Toledo Henriques,Mário Fonseca Paulino,Karla Alves Magalhães,Poliana Albino Silva,Mario Luiz Chizzotti +7 more
TL;DR: In this article, a new model that also uses a summative approach, was developed but it was based on data obtained in the tropics and it was more accurate in predicting TDN values than the NRC [National Research Council (NRC), 2001.
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Estimação da digestibilidade do extrato etéreo em ruminantes a partir dos teores dietéticos: desenvolvimento de um modelo para condições brasileiras
Edenio Detmann,Sebastião de Campos Valadares Filho,Douglas dos Santos Pina,José Maurício de Souza Campos,Mário Fonseca Paulino,André Soares de Oliveira,Polyana Albino Silva +6 more
TL;DR: The metabolic fecal EE did notchange with different dietary EE levels (EE%), when expressed as a percentage of dietary EE, therefore, the EE apparently digestible in the diet (EE) was not changed.
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Reparametrização do modelo baseado na lei de superfície para predição da fração digestível da fibra em detergente neutro em condições brasileiras
Edenio Detmann,Sebastião de Campos Valadares Filho,Lara Toledo Henriques,Douglas dos Santos Pina,Mário Fonseca Paulino,André Luiz Rodrigues Magalhães,Darcilene Maria de Figueiredo,Marlos Oliveira Porto,Mario Luiz Chizzotti +8 more
TL;DR: In this paper, the authors avaliou estimativas da fracao digestivel da FDN (CDFDNP) in bovinos with the aim of avaliar a set of parâmetros basicos sao: fator de protecao da lignina sobre os carboidratos da parede celular vegetal (FPL) and coeficiente de digestibilidade da FRFDNP.