This series consists of Sow and Litter Records and Service Records of the RAC piggery. The litter records note the litter breeding, dates of farrowing, live and dead births, birth weights, piglet (registration) numbers, sex, treatment, marking weight and weaning weight. The sow records note sow by number, boar by name, number of service, date of service and due date. Later volumes also contain extra details on the litter.