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Avaliação da frequência de pneumonia enzoótica suína em granja através da monitoria de abate, clínica e laboratorial / Evaluation of the frequency of swine enzootic pneumonia in one farm based on slaughterhouse, clinical and laboratory monitoring

Sarturi, Janine Alves; Rossi, Carlos Augusto Rigon; Rech, Rodrigo Dalmina; Pinheiro, Analaura Bianchini; Silva, Kauany Moura da; Colpo, Ian Lovato; Campos, Vitória Lima de; Soares, Marcelo; Cargnelutti, Juliana Felipetto; Machado, Carolina Sleutjes.
Acta sci. vet. (Online); 49: Pub. 1795, 21 mar. 2021. tab
Artigo em Português | VETINDEX | ID: vti-762004


Background: Swine enzootic pneumonia (SEP), caused by the bacterium Mycoplasma hyopneumoniae, is one of the main respiratorydiseases of pigs. The purpose of this study was to evaluate the frequency of SEP in one farm with an independent production system,low level of technification and high losses in the meat packing plant, based on slaughterhouse, clinical and laboratory monitoring.Materials, Methods & Results: This study consisted of three monitoring steps, divided into 3 periods: P1, P2 and P3. In the first step ofthe study, slaughterhouse reports were analyzed and slaughtering was monitored at one meatpacking plant in Santa Maria, RS, Brazil.The second step of the study started by drawing up a profile of the farm that supplied the pigs to the aforementioned slaughterhouse,after which clinical monitoring was performed on three occasions. The third step of the study (laboratory monitoring) involved collecting lung fragments containing suspected SEP lesions from the meatpacking plant and subjecting them analysis. The average measuredenzootic pneumonia (EP) in P3 was 38.54% (P < 0.05) higher than in P1 and 29.79 higher than in P2. The mean frequency of pulmonaryemphysema (PE) in P3 was 59.13% (P < 0.05) higher than in P1 and 48.04% higher than in P2. The mean number of lung adhesions(LA) did not differ statistically (P > 0.05) between P1, P2 and P3. As for the mean frequency of pulmonary hepatization (PH), P3 was48.80% higher (P < 0.05) than P1 and 41.78% higher than P2. With regard to the mean frequency of craniodorsal lung lesions (CLL), P3was 48.26% higher (P < 0.05) than P1 and 40.77% higher than P2. The mean frequency of disseminated lesions (DL) and the pneumoniaseverity index (PSI) showed no statistical difference (P > 0.05) between the 3 evaluated periods. On the other hand, in the finishingperiod (FP), the frequency of coughing and sneezing was 37.56% (P < 0.05) higher in P1 than in P3. The frequency of coughing and...(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1