Effect of the ionophore ICI 139603 on growth rate and feed conversion in Zebu

Authors

  • Albino Luchiari Filho Instituto de Zootecnia, Divisão de Zootecnia de Bovinos de Corte, Seção de Avaliação e Classificação do Gado de Corte, Nova Odessa, SP
  • Celso Boin Universidade de São Paulo, ESALQ, Departamento de Zootecnia de Ruminantes, Piracicaba, SP
  • Guilherme Fernando Alleoni Instituto de Zootecnia, Divisão de Zootecnia de Bovinos de Corte, Seção de Criação e Manejo de Gado de Corte, Nova Odessa, SP
  • Paulo Roberto Leme Instituto de Zootecnia, Divisão de Zootecnia de Bovinos de Corte, Seção de Avaliação e Classificação do Gado de Corte, Nova Odessa, SP

Keywords:

ICI 139603, ionophore, zebu cattle

Abstract

The effect of the ICI 139603 ionophore on the performance of Zebu steers was evaluated on this trial utilizing two treatments: A) control and B) 0.1 mg/kg LW of ICI 139603. Fifty four 27 month old Nellore steers were grouped based on live weight and weight gain on a 3 week pre-trial period. The basal diet consisted of chopped Guinea grass ad libitum plus 0.5 kg of soybean meal and ground corn (0.37% of the live weight). The ICI 139603 additive was mixed with the ground corn on treatment B. Dry matter intake was not affected by the additive (P >0.05), but daily weight gain was greater (P <0.01) for the animals receiving it (0.585 and 0.655 kg for treatments A and B, respectivelly). Consequently, feed conversion was improved (P <0.01) by the additive (in the same order above, 14.66 and 13.12 kg DM/kg LWG). The concentration of propionic acid in the ruminal liquid was increased by the additive. The improvement of feed conversion was 10.5% and the weight gain 12.2% higher than the control group of cattle.

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Published

2014-01-14

Issue

Section

ANIMAL NUTRITION

How to Cite

Effect of the ionophore ICI 139603 on growth rate and feed conversion in Zebu. (2014). Bulletin of Animal Husbandry, 47(2), 169-172. http://bia.iz.sp.gov.br/index.php/bia/article/view/891

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