title: A survey of mortality in three adult broiler breeder flocks.
abstract: A survey was carried out on the causes of mortality in three broiler breeder flocks during the laying period from May 1976 to February 1977. Five hundred and forty-two birds were examined. The commonest causes of death in the females were reproductive disorders (24.9%), cellulitis or injury due to cannibalism (24.0%), kidney lesions (9.5%), liver haemorrhage (7.1%), Marek's disease (4.9%) and staphylococcal synovitis/tenosynovitis (4.1%). Mortality in the males was due mainly to staphylococcal synovitis/ tenosynovitis (33.8%) and acute heart failure (14.3%).
authors.affiliation: Ministry of Agriculture, Fisheries and Food, Veterinary Laboratory, Lasswade, Midlothian, Scotland.
authors.forename: H G
authors.initials: HG
authors.lastname: Jones
authors.forename: C J
authors.initials: CJ
authors.lastname: Randall
authors.forename: C P
authors.initials: CP
authors.lastname: Mills