RESUMO
A mortality survey was carried out on three flocks of broiler chickens on a Victorian grower farm. A total of 61,400 chicks were placed and 2883 (4.7 per cent) died or were culled during rearing. Only 1028 (36 per cent) dead and culled birds were available for autopsy and interpretation was based on figures extrapolated from the findings. The most common condition encountered was death in good condition associated with congestion of the lungs (39 per cent of chickens autopsied). Inclusion body hepatitis was diagnosed in 30 per cent of chickens over 21 days of age which died. Mortality during the first 10 days was 1.1 per cent of chicks placed. The incidence of various other conditions is presented with relevant observations and comments.
Assuntos
Galinhas , Doenças das Aves Domésticas/mortalidade , Animais , Austrália , Hepatite Viral Animal/mortalidade , Corpos de Inclusão Viral , Aves Domésticas , Doenças das Aves Domésticas/etiologiaRESUMO
During the period from July 1977 to June 1985, specimens from 766 replacement layer and breeder chicken flocks were submitted to the Veterinary Research Institute, Victoria, Australia, for investigation of morbidity, mortality and, or, poor performance. A total of 5940 necropsies, as well as numerous ancillary tests, were performed. The findings for these flocks are presented and the consequences of some particular diseases noted.
Assuntos
Galinhas , Doenças das Aves Domésticas/epidemiologia , Animais , Austrália , Dinitolmida/efeitos adversos , Feminino , Monensin/intoxicação , Nitrofuranos/intoxicação , Doenças das Aves Domésticas/tratamento farmacológico , Doenças das Aves Domésticas/mortalidade , Sulfaquinoxalina/efeitos adversosRESUMO
During the period July 1977 to June 1984, specimens from 1402 broiler chicken flocks were submitted to the Veterinary Research Institute, Victoria, Australia for investigation of morbidity, mortality and, or, poor performance. A total of 19,450 post mortem examinations, as well as numerous ancillary tests, were performed. The findings on these flocks are presented and the consequences of some particular diseases noted.
Assuntos
Doenças das Aves Domésticas/epidemiologia , Produtos Avícolas , Anemia Aplástica/veterinária , Animais , Arsênio/efeitos adversos , Aspergilose/veterinária , Atrofia , Botulismo/veterinária , Bolsa de Fabricius/patologia , Galinhas , Coccidiose/veterinária , Fígado Gorduroso/veterinária , Humanos , Hidroxibutiratos/efeitos adversos , Nefropatias/veterinária , Doenças das Aves Domésticas/induzido quimicamente , Produtos Avícolas/efeitos adversosRESUMO
Observations on a runting and stunting syndrome in broiler chickens in Victoria, Australia, based on general observations from 1980 to 1983 on 2244 chickens from 109 affected broiler chicken flocks, are summarised. The details on 156 of these birds from five affected flocks with varying runting percentages are presented. Typically affected birds were presented with atrophy of the pancreas, the thymus and the bursa of Fabricius.