Ecopathological study of post weaning diarrhea in pig farms of southwest Paraná

Ciência Rural

Brito, Benito Guimarães de¹  Mores, Nelson²  Filippsen, Laerte Francisco¹ 

[1] Instituto Agronômico do Paraná, Londrina;Empresa Brasileira de Pesquisa Agropecuária, Concórdia

关键词: piglets;    diarrhea;    post-weaning;    risk factors;   

DOI  :  10.1590/S0103-84781995000300018

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The main risk factors that interfered on the performance of post weaning piglets were identified in nine farms from Southwest of Paraná State, Brazil, during the Summer and Winter of 1991. All the herd were evaluated, with at least 30 piglets per farm, from weaning up to 21 days after weaning. The software ECOPOR was used to evaluate three target variables (mortality, diarrhea and average daily gain), and seven explanatory variables (average weaning weight, weight variation coefficient, thermal amplitude, sow energy consumption, water potability, diahrrea in the suckling period and housing density). The risk factors with higher frequency were daily thermal amplitude higher than 6°C, bacterial contamination of the drinking water, and the occurrence of diarrhea in the suckling period. Im more than 50% of the farms, low mean gain and differences in litter size were observed. Based on the analyses of the risk factors, a map classifying regions with different risk of post weaning diarrhea was constructed and the farms were allocated.

【 授权许可】

CC BY-NC