Daily weight gain, feed: gain ratio and carcass characteristics of the Nellore steers feed lot and rations based on the tropical grass silage or corn silage

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
  • Ricardo Linhares Sampaio Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP
  • Flávio Dutra de Resende 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
  • Rogério Marchiori Coan Coan Consultoria Avançada em Pecuária, Jaboticabal, SP
  • Ricardo Andrade Reis Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Jaboticabal, SP
  • Guilherme Fernando Alleoni Secretaria de Agricultura e Abastecimento do Estado de São Paulo, Agência Paulista de Tecnologia dos Agronegócios, Instituto de Zootecnia, Centro de Pesquisa e Desenvolvimento em Nutrição Animal e Pastagens, Nova Odessa, SP
  • Marcelo Henrique de Faria 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
  • Gustavo Rezende Siqueira 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
  • Fernando Bergantini Miguel 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

Keywords:

carcass, feed conversion, performance, nutritional plane

Abstract

It was evaluated dry matter average daily intake, average daily weight gain, feed: weight gain ratio, and carcass characteristics with rations based on the tropical grass silage (TG) or corn (C) silage, that they took care to the requirements for weight gain of 1.0 and 1.2kg/day. Twenty-four Nellore steers, averaging 369.05 ± 15.06kg of live weight distributed in a randomized design, in a factorial scheme 2 x 2 (silage x nutritional plane) with six replications. The treatments had been: 1) Marandu grass silage and daily gain of 1.0kg; 2) Marandu grass silage and daily gain of 1.2kg; 3) Corn silage and daily gain of 1.0kg; 4) Corn silage and daily gain of 1.2kg. The silage and nutritional plane didn’t affect the daily dry matter intake and intake in relation to the body weight, carcass weight and yield hot and cool, fat thickness, eyes loin area and basic meat cuts. However the animals that received to high nutritional diet plane showed highest daily weight gain in relation to the live and hot carcass weight, compared to animal feed in low nutritional plane. The feed conversion (kg of DM/kg of the weight gain) was better to the animals feed with corn silage in a higher nutritional plane. The corn silage diet for daily gain of 1.2 kg resulted in a better animal performance and feed conversion.

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Published

2008-01-18

Issue

Section

ANIMAL NUTRITION

How to Cite

Daily weight gain, feed: gain ratio and carcass characteristics of the Nellore steers feed lot and rations based on the tropical grass silage or corn silage. (2008). Bulletin of Animal Husbandry, 65(1), 71-82. http://bia.iz.sp.gov.br/index.php/bia/article/view/1148

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