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- Hocking, P.M.; Robertson, G.W.
- British poultry science 2005 v.46 no.3 pp. 354-360
- ovarian follicles, etc ; follicular development; restricted feeding; gonadotropins; broiler breeders; selection intensity; cockerels; age at first egg; pullets; heritability; reproductive traits; photoperiod; ad libitum feeding; ovulation; animal breeding; hens; selection criteria; breeding lines; Show all 18 Subjects
- ... 1. Female chicks from 6 pure lines of broiler breeders were obtained from international broiler breeder companies. The lines were from three female and two male lines and a relaxed selection line derived from one of the male lines (M2) and maintained without selection for 25 years (generations). Replicate groups from each line were reared in floor pens and fed ad libitum . An additional group of t ...