Urea in diets for dairy cattle: in take of nutrients and body development

Authors

  • Ricardo Dias Signoretti Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Polo Regional de Desenvolvimento Tecnológico dos Agronegócios da Alta Mogiana, Colina, SP
  • Tamires da Silva Garcia Fundação Educacional de Barretos, Centro Universitário, Barretos, SP
  • Vanessa Dib Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Fernando Henrique Meneguello de Souza Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Elisa Marcela de Oliveira Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal, SP
  • Bruna Pessim Fundação Educacional de Barretos, Centro Universitário, Barretos, SP

Keywords:

intake, feed, gain ratio, average daily gain, silage cane sugar

Abstract

The objective was to evaluate the use of urea as a replacement to soybean meal in diets based on silage sugar cane intake of nutrients and body development of twelve dairy crossbred cattle, bulls, with initial weight of 184.79 ± 6.6 kg and average age of 9.5 ± 1.9 months, distributed in randomized block design with two treatments (with and without urea), six replicates each. The DM, OM, CP, NDF, ADF, TDN, expressed in kg / animal / day and feed:gain ratio of DM and CP decreased with the replacement of soybean meal by urea in the diets of animals. The body measurements were not affected by the replacement of soybean meal by urea, but reduced (P<0.01) the weight gain (0.488 and 0.219 kg/animal/day, respectively) of crossbred dairy calves.

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Published

2011-02-12

Issue

Section

ANIMAL NUTRITION

How to Cite

Urea in diets for dairy cattle: in take of nutrients and body development. (2011). Bulletin of Animal Husbandry, 68(2), 157-164. http://35.198.24.243/index.php/bia/article/view/1055

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