The effect of different rates of ventilation on piglet performance during lactation period

Authors

  • Carlos Cláudio Perdomo Empresa Brasileira de Pesquisa Agropecuária, CNPSA, Concórdia, SC
  • Alfredo Ribeiro de Freitas Empresa Brasileira de Pesquisa Agropecuária, CNPSA, Concórdia, SC
  • José Carlos Zaffalon Empresa Brasileira de Pesquisa Agropecuária, CNPSA, Concórdia, SC
  • Paulo Armando Victória de Oliveira Empresa Brasileira de Pesquisa Agropecuária, CNPSA, Concórdia, SC

Abstract

A study was carried out at the National Swine and Poultry Research Center, Concordia, SC, Brazil to determine the effects of ventilation rate on the performance of piglets and environmental conditioning of the farraowing house. Five ventilation rates (115.0, 67.5, 47.0, 19.0 m3/min and natural ventilation) and three observation periods (summer, summer-fail and fall) with five replicates par ventilation rate period combinations were tested. The exhaust mechanical ventilation type systems were utilized. There were not significant (P > 0.05) effects of ventilation rate on daily weight gain (186, 172, 175, 186 and 179 g/day), daily feed consumption (13.5, 9.5, 10.9, 11.9 and 10.8 g/day), mortality rate (15.4. 14.5, 12.9, 10.3 and 8.0%) respectively, and also on frequencies of occurrence and medication rate of respiratory and digestive disease. Ventilation rates of 67.5 and 47.0 m3/min were the only ones to provid adequate average air velocity (0.13 and 0.19 m/s, respectively) for the piglets confort. The ventilation designs adapted did not present adequate of air distribution in the building, showing a decrease in efficiency with increasing temperatures.

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Published

2014-01-29

Issue

Section

ANIMAL REPRODUCTION

How to Cite

The effect of different rates of ventilation on piglet performance during lactation period. (2014). Bulletin of Animal Husbandry, 45(2), 389-396. http://bia.iz.sp.gov.br/index.php/bia/article/view/694

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