Assessment of respiratory herd health in weaner pigs by measuring cellular composition of bronchoalveolar lavage fluid
Mombarg, MJ × Niewold, Theodoor Stockhofe-Zurwieden, N van Leengoed, LAMG Verheijden, JHM #
BLACKWELL VERLAG GMBH
Journal of veterinary medicine. Series B vol:49 issue:9 pages:424-428
date:Univ Utrecht, Fac Vet Med, Dept Herd Hlth & Reprod, NL-3584 CL Utrecht, Netherlands
Cell differentiation of bronchoalveolar lavage fluid (BALF) was compared among 11 herds having a history of recurrent respiratory disease in weaner pigs and nine herds lacking such a history. In every herd, 20 pigs aged 8-10 weeks were lavaged. The two groups differed significantly on median percentage of macrophages, neutrophils and lymphocytes, but not on white blood cell count of the BALF. Logistic regression showed the percentage of samples per herd exceeding the reference value for neutrophils of 0-8% to be the most promising parameter to assess the health status in weaner pigs.