ÍNDICES ZOOTÉCNICOS DE UNIDADES PRODUTORAS DE LEITÕES COM DIFERENTES SISTEMAS DE CRIAÇÃO

Abstract

The objective of this study was to evaluate the reproductive performance data producing units of piglets in different housing systems. The survey was conducted in two commercial farms producing piglets from the same company (NARO Group), where the NARO II is located in the city of Aparecida do Rio Doce - Goiás, with collective pens system and has 3213 arrays. And NARO III is located in the city of Cachoeira Alta - Goiás, in the traditional system in individual cages with full 1359 arrays. Since all the genetic Camborough. The data were obtained to search performance monitor program for Copyright © PigChamp 2006-2010.O experimental design was completely randomized (CRD) with two treatments NARO NARO II and III, and 12 to 24 repetitions corresponding experimental units. The data were analyzed using the R software (2011) and comparison of means was used Tukey test at 5% probability. The results of the variables in the mean and standard error of the indices on maternity matrices did not present significant difference, only the variable lactation period which is considered as a voluntary variable. The variables in the mean and standard error of maternity rates in the litter differed significantly, but the variables weaning per litter and mummified per litter did not differ between treatments, as for reproductive rates only variable average age disposal of NARO II achieved a lower result compared NARO III. The performance indexes of the two farms were satisfactory, but the housing system NARO III possess individual cages achieved the best results when compared to NARO II of collective boxes and has a more intensive production system. In view of these results, in the NARO II creation of collective boxes system, it is recommended to improve in some respects, as more skilled labor in management activities in the pregnancy and maternity sector to ensure better results of reproductive performance.