Intake and live weight gain of Santa Inês, Suffolk and Ile de France ewe lambs in rotational grazing on Aruana or Tanzania grass (Panicum maximum Jacq.)

Authors

  • Cristina Maria Pacheco Barbosa Universidade Federal do Rio Grande do Sul, Departamento de Plantas Forrageiras e Agrometeorologia, Porto Alegre, RS
  • Mauro Sartori Bueno 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 Zootecnia Diversificada, Nova Odessa, SP
  • Eduardo Antonio da Cunha 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 Zootecnia Diversificada, Nova Odessa, SP
  • Luiz Eduardo dos Santos 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 Zootecnia Diversificada, Nova Odessa, SP
  • Luis Humberto Castillo Estrada Universidade Estadual do Norte Fluminense, Centro de Ciências e Tecnologias Agropecuárias, Campos dos Goytacazes, RJ
  • Célia Raquel Quirino Universidade Estadual do Norte Fluminense, Centro de Ciências e Tecnologias Agropecuárias, Campos dos Goytacazes, RJ
  • José Fernando Coelho da Silva Universidade Estadual do Norte Fluminense, Centro de Ciências e Tecnologias Agropecuárias, Campos dos Goytacazes, RJ

Keywords:

performance, sheep, grazing

Abstract

The objective of this study was to evaluate the live weight gain and dry matter intake of Santa Inês, Suffolk and Ile de France ewe lambs, in rotational grazing on Aruana or Tanzânia grass (Panicum maximum Jacq.), with around seven days of grazing and 42 to 53 of growing during the Autumn (Mar to May), 2001. Thirty eigth ewe lambs, 12 Santa Inês, 14 Ile de France and 12 Suffolk breeds, with five to six month old were used and allocated to one of the treatments: T1: grazing Aruana grass; T2: grazing Tanzânia grass. The evaluations of the biomass before and after grazing (kg ha-1) were also recorded. The fecal output was estimated for the intake evaluation, using the chromic oxide as indicator. The average Aruana grass production was 4260 kg ha-1 and for Tanzânia grass was 4657 kg ha-1 and the remainders after grazing were 2195 and 2415 kg ha-1, respectively. The crude protein content was greater for Aruana grass (11%) than for Tanzânia (9%). The FDN content was similar between grasses (73%). The low average daily live weightgain and voluntary intake did not show differences between both grasses (35 g and 2.9% of liveweight, respectively), although, Santa Ines ewe-lambs showed greater dry matter intake, as expressed as percentage of live-weight (3.7%) than other breeds (2.6%; P< 0,05). It was concluded that the grasses evaluated did not meet the nutritional requirement of this category and led to unsatisfactory weight gain.

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Published

2013-11-29

Issue

Section

ANIMAL NUTRITION

How to Cite

Intake and live weight gain of Santa Inês, Suffolk and Ile de France ewe lambs in rotational grazing on Aruana or Tanzania grass (Panicum maximum Jacq.). (2013). Bulletin of Animal Husbandry, 60(1), 55-62. http://bia.iz.sp.gov.br/index.php/bia/article/view/1354

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