UREA POLYMER AND UREA SALT AS SOLUBLE NITROGEN SOURCE IN RUMEN: RUMINAL AND PLASMA PARAMETERS

Authors

  • Anderson Alves Garcia de Paula Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
  • Reginaldo Nassar Ferreira Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
  • Geisa Fleury Orsine Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
  • Leonardo Oliveira Guimarães Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil
  • Euclides Reuter de Oliveira Universidade Federal de Goiás (UFG), Goiânia, Goiás, Brasil

Keywords:

Animal Nutrition, rumen

Abstract

Ruminal (pH, N-NH3) and plasmatic (urea) parameters were evaluated in crossbred cows no lactiferous (Holstein x Zebu), canulated in rumen and inoculated with 28 g/animal/day of nitrogen no protein. The animals had been estabulated and supplied with water, mineral supplement and ground hay of Brachiaria brizantha”, ad libitum”. The treatments were: TC (control - without inoculation of nitrogen source in rumen); TU (inoculation of urea source) and TUP (inoculation of urea polymer source. The times of observations were: 0; 0.5; .1.0; 1.5; 2.0; 2.5; 3.0; 3.5; 4.0; 4.5; 5.0; 5.5; 6.0; 9.0; 12 and 24 hours after the inoculation of nitrogen source in rumen. The experimental design was Latin square 3x3 duplicate. The comparison between the averages was done the test of Scott-Knott in 5% of probability. The values of N-NH3, in treatment TUP was higher (P<0.05) than treatments TC and TU at times of 2.0 to 6.0 hours after the inoculations of the nitrogen sources in the rumen. In the time of 6 hours, the TUP it was significantly higher (P<0.05) than TC e TU, with value of 36.43 mg of N-NH3/dL. The ruminal pH was significantly lesser (P<0.05) for TUP at times of 5.5 and 6 hours (6.54 and 6.59) in relation the TC (6.76 and 6.83) and TU (6.80 and 6.86). In the time of 0.5 hours, TU presented a significantly higher (16.70 mg/dL) plasmatic urea level (P<0.05) than others treatments. The urea polymer presents a ruminal provided stability in pH and higher concentration of N-NH3 during the times of observations.

KEY WORDS: Additive, ammonia, NNP, pH.

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Published

2009-04-02

How to Cite

PAULA, A. A. G. de; FERREIRA, R. N.; ORSINE, G. F.; GUIMARÃES, L. O.; OLIVEIRA, E. R. de. UREA POLYMER AND UREA SALT AS SOLUBLE NITROGEN SOURCE IN RUMEN: RUMINAL AND PLASMA PARAMETERS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 10, n. 1, p. 1–8, 2009. Disponível em: https://revistas.ufg.br/vet/article/view/5884. Acesso em: 5 apr. 2025.

Issue

Vol. 10 No. 1 (2009)

Section

Animal Production

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Copyright (c) 2009 Brazilian Animal Science/ Ciência Animal Brasileira

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