• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
Document
Author
Full name
Maria Claudia Araripe Sucupira
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 1998
Supervisor
Title in Portuguese
Efeito de níveis crescentes de uréia no consumo, volume ruminal e taxa de passagem em vacas holandesas alimentadas com cana-de-açúcar
Keywords in Portuguese
CANA-DE-AÇÚCAR
DIETA ANIMAL
RÚMEN
UREIA
VACA HOLANDESA
Abstract in Portuguese
O experimento foi realizado no período de outubro a dezembro de 1997, nas dependências do Departamento de Zooctenia, ESALQ/USP. Foram utilizadas 4 vacas holandesas, não lactantes, com cânulas no rúmen em um delineamento experimental quadrado latino 4 x 4. As dietas experimentais eram constituídas por cana-de-açúcar com volumoso exclusivo, farelo de soja como suplemento protéico no tratamento A e níveis crescentes de uréia (1,0; 1,5 e 2,0% na matéria fresca da cana) nos tratamentos B, C e D respectivamente. O farelo de soja foi oferecido para tornar as dietas A e B isonitrogenadas. O consumo de MS foi maior (P<0,05) para o tratamento A (7,76; 4,94; 4,53; 4,02 kg . dia-1). O consumo de PB foi superior (P<0,05) para o tratamento A (0,869 kg) comparando ao B (0,549 kg). O volume ruminal de líquidos foi superior (P<0,05) para o tratamento A (35,06 litros) comparado ao C (28,54 litros) e D (26,20 litros); e para o tratamento B (31,55 litros) comparado ao D. O “turnover” (2,0) e a taxa de diluição (8,31%.h-1) não foram influenciadas (P>0,05) pelo tratamento. A digestibilidade da MS foi significantemente maior (P<0,05) para os tratamentos A (69,91%) e C (69,37%) comparadas com os tratamentos B (65,10%) e D (65,37%)
Title in English
The effects of urea levels on dry matter intake, rumen volume and passage rate in sugar cane based diets
Abstract in English
The trial was conducted from October through December of 1997 at the Departamento de Zootecnia, ESALQ/USP. Four rumen cannulated dry Holstein cows were used in a 4 x 4 Latin Square design; the experimental diets constisted of sugar cane as the exclusive roughage and soybean meal as the protein supplement in treatment A and urea at levels of 1, 1.5 and 2% of fresh sugar cane in treatments B, C, and D, respectively. Soybean meal was fed to make treatments A and B isonitrogenous. All diets with the mineral mix top dressed were offered ad Iibitum twice daily. Dry matter intake was significantly higher (P<0.05) for treatment A (7.76, 4.94,5.53,4.02, respectively for treatments A, B, C, and D). Rumen volume (1) for treatment A (35.1) was significantly higher than for treatments C and D (28.5 and 26.2, respectively) and for treatment B (31,5) than for treatment D. The average dilution rate was 8.31 %.h-1 and it was not significantly affected by the diets. The dry matter digestibility (%) in treatments A (69.9) and C (69.4) was significantly higher than in treatments B (65.1) and D (65.4)
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2019-11-08
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2021. All rights reserved.