INFECTIOUS BRONCHITIS
Infectious bronchitis hanesan moras virus ida
ne’ebe afeta ba animal manu iha kualker idade, moras ne’e mos afetadu ba animal manu iha mundo tomak, virus IB
laos afeta de’it ba sistema respiratorio maibe afeta mos sistema urogenital.Virus
IB pinsipalmente kauza moras respirasaun ba manu ne’ebe afetadu tiha ona, no bele kauza diminuisaun ba produsaun manu nia tolun.
Etiologia
Moras infectious Bronchitis (IB) kauza husi gammacoronavirus infectious bronchitis, virus ne'e husi familia coronaviridae ne’ebe ataka iha sistema respiratorio (Gordon & Jordan,1982; OIE, 2013b). Infectious bronchitis (IB), dahuluk identifika iha nasaun United states of America (USA), iha 1930 (OIE,2013)
Maneira Transmisaun
Moras IB hada’et
husi kontaktu direitamente entre manu ne’ebe moras ba manu ne'ebe saudavel. Kontaktu indireita bele
akontese tuir material kontaminadu husi manu moras. Infesaun ba manu ne’ebe
seidauk adultu kauza moras respiratorio kaman ne’ebe bele influensia
kresimentu. Ba manu adultu moras IB la halo manu mate, maibe ba manu ne’ebe idade
menus husi semana 6 bele halo manu mate (Gordon & Jordan 1982).
Sinais klinika
Patologia
Patologia
anatomia ne’ebe iha relasaun ho IB forma respirasaun hanesan iha Kanal
respirasaun parte leten. IB ho forma rins sei
fo sinal ho defeito (kerusakan) rins tamba impaktu husi infesaun strain
neprhrophatogenic. Manu nia rins ne’ebe hetan infesaun sei sai namkurut
no abses (bubu), nia mino asido sei intupido, ba formasaun reprodusaun ne’ebe
akontese ba manu layer, substansia iha manu tolun kinur cavidade isin lolon sei
dezenvolve sai likido iha ovario nia laran. Manu oan fasil tebes hetan
infesaun no fo impaktu ba dezenvolvimentu
cystic iha oviducto nia laran. IB
ne’ebe mak nia forma hanesan penguin
hatudo katak iha sistik oviduct
ne’ebe bele kontem likido 1L liu ou
parsia atrofico ne’ebe ho dilatasau sistik ne’ebe boot. Oviducto nia didin sai
mihis no transparante iha area sistik. Ovarium sei sai normal no iha funsaun
nafatin.
Diagnosa
Virus ne’ebe kauza infectious bronchitis bele izola no inokula uza manu tolun espesifiku pathogen free (SPF) ka tissue culture. Orgaun ne’ebe bele uza atu hetan virus ba inokulasaun mak hanesan trachea, pulmaun, airsac no rins. Teste espesifiku seluk ne’ebe bele detekta serum anticorpu mak serum neutralization, haemagglutination inhibition, agar sel diffusion, ELISA, immunofluorescence no complement fixation test (Gordon & Jordan 1982).
Diagnosa diferensial
Sintoma husi moras IB maioria atu hanesan ho moras sira tuir mai ne’e
- Avian influenza
- Infectious coryza
- Infectious laryngotracheitis
- Newcastle disease
Prevensaun
Sanitasaun hanesan fator ne’ebe bele termina siklu transmisaun moras tanba virus ne’e sensitivu ba desinfekta no manas. Asaun prevensaun ne’ebe bain-bain ema halo mak fó vasinasaun regularmente ho “Live & inactivated (oil adjuvanted) vaccine (Gordon & Jordan 1982).
Tratamentu
Ate agora seidauk hetan aimoruk ne’ebe mak atu kura ba moras ida ne’e. Asaun ne’ebe mak bain-bain ema hala’o atu manu nia kondisaun isin lolon diak lalais no aumenta ninia vontade han mak hanesan ema fo vitamina no mos mineral. No atu prevene infeksaun sekundaria ita bele fo Antibiotika.
Reference
BROWNING, G. F (2014). Overview of Infectious Bronchitis in Poultry in The Merck Veterinary Manual
Gordon & Jordan (1982).Poultry Diseases, Edition. Bailliere Tindal.
OIE (2013b). Avian Infectious Bronchitis in OIE Terrestrial Manual 2013 chapter 2.3.2
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