Abstract:
(1) Results of large-scale insemination trials conducted in the autumn of 1960 and involving 1955 Merino ewes in two flocks of mixed ages are presented. (2) Three factorial tests were conducted. The effects on returns to service and lambing performance of semen diluents and rams were studied with fresh semen (test 1, 240 ewes) and semen cooled, transported, and used 3