Association of growth performance with atrophic rhinitis and pneumonia detected at slaughter in a conventional pig herd in Hungary.

The influence of atrophic rhinitis (AR) and pneumonia on growth performance was assessed in a conventional farrow-to-finish pig farm affected by both diseases. All tested pigs (n = 138) were individually weighed at birth, at weaning, at moving to the growing/finishing unit, and at slaughtering. The extent (grade) of turbinate atrophy and lung consolidation attributable to pneumonia was determined in each pig at slaughter. A negative correlation was found between birth weight and the prevalence of nasal lesions at slaughter, suggesting that pigs born with smaller weight may be more susceptible to AR. The growth performance of the pigs also showed a negative correlation with the degree of turbinate atrophy. In the nursery period, the average daily gain (ADG) of pigs with moderate/severe turbinate atrophy was 13.3% lower than that of animals with healthy snouts. In the finishing period, pigs with mild AR lesions had an ADG reduction of 6.2%, while pigs with severe AR lesions had a significant, 9.4% reduction in ADG as compared to the AR-free pigs. The extent of weight gain reduction over the whole life cycle was very similar (approximately 6%) in the pigs having either AR or pneumonia alone. In those pigs where both respiratory diseases were present, their effects seemed to be added up (11.5%); however, nasal lesion scores and percentage of lung consolidation did not show statistically apparent interactive effects on growth performance.

[1]  M. Gracia,et al.  Effect of sex and terminal sire genotype on performance, carcass characteristics, and meat quality of pigs slaughtered at 117 kg body weight. , 2003, Meat science.

[2]  V. King,et al.  Evaluation of vaccines for atrophic rhinitis--a comparison of three challenge models. , 2002, Vaccine.

[3]  O. Vangen,et al.  Breed and sex differences in fat distribution and mobilization in growing pigs fed at maintenance , 1996 .

[4]  H. A. Brandsma,et al.  Effects of atrophic rhinitis induced by Pasteurella multocida toxin on heat production and activity of pigs kept under different climatic conditions. , 1995, Journal of animal science.

[5]  L. Dybkjær,et al.  An Epidemiologic and Economic Study of Respiratory Diseases in Two Conventional Danish Swine Herds. I: Prevalence of Respiratory Lesions at Slaughter and Their Effects on Growth , 1993, Acta Veterinaria Scandinavica.

[6]  Hj Norussis,et al.  SPSS for Windows , 1993 .

[7]  V. B. Mayrose,et al.  Relationship to growth performance of pneumonia and atrophic rhinitis lesions detected in pigs at slaughter among four seasons. , 1992, Journal of the American Veterinary Medical Association.

[8]  B. Straw Performance measured in pigs with pneumonia and housed in different environments. , 1991, Journal of the American Veterinary Medical Association.

[9]  V. B. Mayrose,et al.  Relationship of growth performance to pneumonia and atrophic rhinitis detected in pigs at slaughter. , 1990, Journal of the American Veterinary Medical Association.

[10]  V. Sørensen,et al.  Methods of evaluation of atrophic rhinitis. , 1990 .

[11]  M. Bigras-Poulin,et al.  Estimation of the cost of pneumonia in swine herds. , 1989, Journal of the American Veterinary Medical Association.

[12]  S. Furukawa,et al.  Effect of Respiratory Diseases on Body Weight Gain in Fattening Pigs , 1989 .

[13]  M. D. de Jong,et al.  Investigation into the pathogenesis of atrophic rhinitis in pigs. I. Atrophic rhinitis caused by Bordetella bronchiseptica and Pasteurella multocida and the meaning of a thermolabile toxin of P. multocida. , 1986, The Veterinary quarterly.

[14]  S. Martin,et al.  Prevalence of respiratory diseases and their association with growth rate and space in randomly selected swine herds. , 1986, Canadian journal of veterinary research = Revue canadienne de recherche veterinaire.

[15]  E M Spicer,et al.  Causes of preweaning mortality on a large intensive piggery. , 1986, Australian veterinary journal.

[16]  M. R. Wilson,et al.  Porcine atrophic rhinitis. , 1985, Australian veterinary journal.

[17]  L. Bäckström,et al.  Effect of atrophic rhinitis on growth rate in Illinois swine herds. , 1985, Journal of the American Veterinary Medical Association.

[18]  R. Robinson,et al.  Pneumonia and atrophic rhinitis in pigs from a test station--a follow-up study. , 1984, Journal of the American Veterinary Medical Association.

[19]  G. H. Jackson,et al.  The prevalence of nasal turbinate atrophy in British centrally-tested pigs. , 1982, The British veterinary journal.

[20]  W. Bollwahn [Constitutionally predisposed diseases and performance shortcomings of fattened swine]. , 1982, Tierarztliche Praxis.