CONSUMO E DIGESTIBILIDADE DOS NUTRIENTES E DESEMPENHO DE BOVINOS DE CORTE RECEBENDO DIETAS COM DIFERENTES NÍVEIS DE URÉIA

Odilon Gomes Pereira; Viviane Glaucia de Souza; Sebastião de Campos Valadares Filho; Dalton Henrique Pereira; Karina Guimarães Ribeiro; Paulo Roberto Cecon

doi:10.5216/cab.v9i3.643

INTAKE, DIGESTIBILITY AND PERFORMANCE OF BEEF CATTLE RECEIVING DIETS CONTAINING UREA IN DIFFERENT PROPORTIONS

Authors

Odilon Gomes Pereira Universidade Federal de Viçosa
Viviane Glaucia de Souza
Sebastião de Campos Valadares Filho Universidade Federal de Viçosa
Dalton Henrique Pereira Universidade Federal de Viçosa
Karina Guimarães Ribeiro Universidade Federal dos Vales do Jequitinhonha e Mucurí
Paulo Roberto Cecon Universidade Federal de Viçosa

DOI:

https://doi.org/10.5216/cab.v9i3.643

Keywords:

Produção de bovinos

Abstract

Intake, apparent digestibility of nutrients, daily gain, feed conversion and the carcass yield in beef cattle receiving diets containing 0; 0.5; 1.0 e 1.5% of urea in total dry matter were evaluated. Twenty four crossed steers Holstein x Zebu (HxZ), castrated, with initial mean body weight of 290 kg were distributed in a completely randomized design. Sorghum silage was used as roughage adopting relation roughage:concentrate of 70:30 in dry matter basis. In order to determine the fecal excretion, indigestible acid detergent fiber was used as a marker. Intake and digestibility of nutrients were not influenced (P>0.05) by the proportions of urea in the diets. For intake and apparent digestibility of dry matter, mean values of 8.42 kg/day or 2.33% of BW and 64.52% were registered, respectively. Mean daily gain (1.05kg), feed conversion (8.07) and carcass yield (48.72%) were not influenced (P>0.05) by the proportions of urea in the diets. Levels of 1.5% of urea in dry matter of total diet can be used in the preparation of diets for finishing beef cattle (HxZ), without compromising intake and digestibility of nutrients and the animal performance as well.

KEY WORDS: Carcass yield, feed conversion, feedlot, sorghum silage.

Downloads

Download data is not yet available.

Author Biographies

Odilon Gomes Pereira, Universidade Federal de Viçosa

Professor Associado do Departamento de Zootecnia da UFV, bolsista do CNPq

Viviane Glaucia de Souza

Doutora em Zootecnia/UFV

Sebastião de Campos Valadares Filho, Universidade Federal de Viçosa

Professor Titular do Departamento de Zootecnia da UFV, bolsita do CNPq

Dalton Henrique Pereira, Universidade Federal de Viçosa

Doutorando do Departamento de Zootecnia da Universidade Federal de Viçosa. Bolsista do CNPq

Karina Guimarães Ribeiro, Universidade Federal dos Vales do Jequitinhonha e Mucurí

Professora Adjunta do Departamento de Zootecnia da UFVJM

Paulo Roberto Cecon, Universidade Federal de Viçosa

Professor do Departamento de Informática da UFV

Downloads

PDF (Português (Brasil))

Published

2008-10-14

How to Cite

PEREIRA, O. G.; DE SOUZA, V. G.; VALADARES FILHO, S. de C.; PEREIRA, D. H.; RIBEIRO, K. G.; CECON, P. R. INTAKE, DIGESTIBILITY AND PERFORMANCE OF BEEF CATTLE RECEIVING DIETS CONTAINING UREA IN DIFFERENT PROPORTIONS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 9, n. 3, p. 552–562, 2008. DOI: 10.5216/cab.v9i3.643. Disponível em: https://revistas.ufg.br/vet/article/view/643. Acesso em: 2 dec. 2024.

Download Citation

Issue

Vol. 9 No. 3 (2008)

Section

Animal Production

License

Authors who publish with this journal agree to the following terms:

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g. in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).