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A model for evaluating beef cattle rations considering effects of ruminal fiber mass

Douglas Sampaio Henrique et al · Sociedade Brasileira de Zootecnia · 2011

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Author / responsible party
Douglas Sampaio Henrique et al
Publisher
Sociedade Brasileira de Zootecnia
Year
2011
ISSN
1516-3598
ISSN
1516-3598
Language
English
Serial publication

Acasalamento dirigido para aumentar a produção de animais geneticamente superiores e reduzir a variabilidade da progênie em bovinos Mating strategy for increasing the probability of producing outstanding animals and reducing progeny variability

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A mathematical model based on Cornell Net Carbohydrate and Protein System (CNCPS) was developed and adapted in order to evaluate beef cattle rations at tropical climate conditions. The presented system differs from CNCPS in the modeling of insoluble particles' digestion and passage kinetics, which enabled the estimation of fiber mass in rumen and its effects on animal performance. The equations used to estimate metabolizable protein and net energy requirements for gain, net energy requirement for maintenance and total efficiency of metabolizable energy utilization were obtained from scientific articles published in Brazil. The parameters of the regression equations in these papers were estimated using data from Bos indicus purebred and crossbred animals reared under tropical conditions. The model was evaluated by using a 368-piece of information database originally published on 11 Doctoral theses, 14 Master's dissertations and four scientific articles. Outputs of the model can be considered adequate.

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APA 7

al, D. S. H. E. (2011). A model for evaluating beef cattle rations considering effects of ruminal fiber mass. https://doi.org/10.1590/S1516-35982011001100036

MLA

al, Douglas Sampaio Henrique et. "A model for evaluating beef cattle rations considering effects of ruminal fiber mass." 2011. https://doi.org/10.1590/S1516-35982011001100036.

Chicago

al, Douglas Sampaio Henrique et. 2011. "A model for evaluating beef cattle rations considering effects of ruminal fiber mass.". https://doi.org/10.1590/S1516-35982011001100036.

Harvard

al, D. S. H. E. 2011, A model for evaluating beef cattle rations considering effects of ruminal fiber mass, Sociedade Brasileira de Zootecnia, available at: https://doi.org/10.1590/S1516-35982011001100036 [Accessed 9 Aug. 2026].

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Title
A model for evaluating beef cattle rations considering effects of ruminal fiber mass
Author / contributors
Douglas Sampaio Henrique et al
Publisher
Sociedade Brasileira de Zootecnia
Publication year
2011
ISSN
1516-3598
ISSN
1516-3598
Language
English

Subjects

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modeling; nutrition; ruminants
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