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tes de coriza infecciosa, dependientes del factor V La coriza infecciosa es una enfermedad cosmopo- inactivada polivalente contra el coriza aviar. PDF | The bacterium Haemophilus paragallinarum is the etiological agent of infectious coryza, an upper respira- tory disease of poultry. Aquí se revisa la epizootiología de la coriza infecciosa, enfermedad del tracto respiratorio superior de . Chlamydia psittaci y el virus de la viruela aviar en.

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Using clinical samples from these birds, which had high antibody titers against aIBV, Acevedo et al. No serological responses against Newcastle Disease Virus were detected. Memorias del V Congreso de avicultura; Avicultura Profesional ;25 2: Crespo del Pilar M. Avicult Profes ;24 1: Serology The serological study for the indirect demonstration of the presence of birds reactive to M. infeccioxa

The reaction was scored as positive if it yielded visible, defined clumps within that time Avicult Profes ;26 5: Merial-Cerval, Georgia, Estados Unidos; As a whole, these results help to better characterize the Cuban epidemiological situation and can be used to defi ne the sanitary procedures required for the control of these diseases.

These outbreaks not only affect their genetic, productive and breeding potential, but result in significant economic losses due to decreases in egg and meat production and increases in medication expenses.

¿Como Curar el Ojo Hinchado en los Pollos (Coriza Infecciosa Aviar)

The present study confirmed the presence of M. Shane 46on the other hand, suggests viral persistence as one of the factors contributing to the appearance of variant aIBV strains, since some recent studies prove that the aviag of the virus from the trachea and cloaca continues for up to 70 days post-immunization.

La calidad de la materia prima y el alimento terminado. Survey acute respiratory syndrome vaccine development: Severe acute respiratory syndrome vaccine development: All plates contained control wells of 4 HAU and erythrocytes.

Cuba, where the poultry stock undergo extensive immunization following the established mass-scale vaccination programs and where biosafety procedures and practices are enforced, still aivar outbreaks of respiratory disease with high morbidity and low mortality in laying hens.


An analysis of variance Anova was performed for the geometric means of the titer of anti-aIBV antibodies, using the statistical software packages Comprop-1 and Statgraphics Plus 5.

World Poult ;23 5: We consider that further studies on the different serovars of O. Sandra Cuello and Julia Corjza, from the National Center for Agricultural Health, for their cooperation in the interpretation of the serological results.

¿Como Curar el Ojo Hinchado en los Pollos (Coriza Infecciosa Aviar)

Epiz ; 15 4: Another important microorganism associated to CRS is the causative coronavirus of infectious bronchitis IBwhich has a special tropism for the respiratory, reproductive and renal tracts. The analysis of the geometric means of the titers of antibodies against aIBV Figure 3 revealed an increase in this parameter starting at week 16 and peaking at week Avicult Profes ;24 3: This process followed a chronic course, affecting the lower airways and resulting in facial tumefaction with a hard consistency leading to loss of vision, muco-fibrinous rhinitis, cachexia, serosal atrophy of subcutaneous fat and the coronary ridge, focal pneumonia of the anteroventral unilateral lobule and diarrhea.

The large number of individuals reactive to these microorganisms could be related to the eventual appearance, at the 21 st w eek of age, of clinical signs and lesions typical of an acute respiratory process affecting the upper airways, characterized by sero-catarrhal rhinitis, blepharitis, conjunctivitis, facial edema and genital hypoplasia.

These results match those of other authors 42, 43 describing a similar clinical-pathological picture in birds with CRS. J Vet Anim Sci ; Twohundred microliters of the testing serum were mixed with an identical volume of the specific antigen on a glass plate, which was rotated for minutes.

Atenas, Estados Unidos; However, the control of CRS-associated bacterial agents is currently implemented in Cuba through the application of biosafety management practices, which have the added advantage of being applicable not only to endemic, but to exotic infectious diseases as well World Poultry incecciosa 6: This result coincides with that of Cavanagh in 44which suggest that several doses of the aIBV vaccine provide greater protection; and those of Acevedo in 45showing that antibody titers can be maintained for a longer period, but start to decline 3 months avir vaccination.


This may start through an infection with another viral strain rather than from the persistence of the vaccine strain since, coincidentally, a similar complicated respiratory process appeared one week earlier among a different hen batch that had been laying for 9 to 10 months.

No positive results for this microorganism were detected during the two first sampling rounds at weeks 12 and Avian Pathol ; 32 6: Cuba has implemented immunization programs against IBV and NDV, administering live or inactivated vaccines to the breeding or laying hen stocks, respectively Also, there are commercially available inactivated vaccines for the control of pathogenic mycoplasma species that have been tested under natural and experimental conditions 18, 19and the poultry farming industry has procured vaccine preparations for the control of the main bacterial serovars associated to CRS, such as P.

Complejo respiratorio de las aves. In the light of this result, we concluded that no association of NDV with CRS could be detected in the population analyzed. In addition, a fourth dose of the NDV vaccine was applied, due to the low proportion of responding individuals according to the HIA titers after the third dose. Sampling Blood samples were taken monthly from week 12 and up to week 50, by puncturing the marginal vein of the wing.

This paper is therefore aimed at the evaluation of serological response to microbiological agents commonly associated with chronic respiratory syndrome in laying hens. Similarly, we would like to extend our appreciation to Drs. Statistical analysis The proportion of individuals positive to M. Description of Ornithobacterium rhinotracheale gen. Accepted for publication in July,