Digestible energy levels for gilts in a high temperature environment

• S. L. Tavares ^[2] ; J. Lopes Donzele ^[2] ; R. F. Oliveira ^[1] ; A. Surez Ferreira ^[1] ; J. L. Kill ^[1]
  1. [1] Universidade Federal de Viçosa

     Universidade Federal de Viçosa

     Brasil

     
  2. [2] Rua Fabiano Janotti, 107/01. B. Mª Euginia. Viçosa – MG CEP 36570-000. Brasi
• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 8, Nº. 1, 2000
• Idioma: inglés
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• Resumen

  • Fifty crossbred female piglets, from 30 to 60 kg, were used to evaluate the effects of five dietary digestible energy (DE) levels on performance and carcass composition at a high environmental temperature (32.04 ± 0.88°C). The experimental design was randomized blocks with five treatments (3 100, 3 250, 3 400, 3 550, and 3 700 kcal DE/kg), five replicates and two animals per experimental unit. DE level did not influence daily weight gain, (treatment means from 641 to 687 g) or intakes of feed, energy and protein. Feed conversion improved linearly (P