NAPCO began developing composite cow breeds in 1982 when they created the Alexandria composite by breeding Braham Bulls and Shorthorn cow herds. The Alexandria composite is a species of cow that is specific to the NAPCO. The composite was developed at NAPCOs Alexandria station in the Northern Territory. The Alexandria station possess a land mass of 1,641,416 hectares which are home to some 80,000 of the companys cattle. It exhibits features such as a stronger carcass yield, reduced fat cover, improved temperament and environmental adaptation, as well as improved fertility. The Barkalay Tableland in Australias Northern Rangeland industry is home to 3,000 Alexandria composites. In 1995 NAPCO also developed the Kynuna composite which is a product of the remaining Shorthorn Herd that were bread with Braham Bulls to produce the Alexandria composite. The Boomarra station in Queensland is the breeding headquarters for the companys Kynuna composite. It is currently in possession of 10,000 individual cows which NAPCO distributes amongst its other properties. The development of the Kynuna composite also utilised Tuli and Red Angus cows, breeding them with Shorthorn species. The composites are closely monitored according to three particular traits; reproductive rates, pasture and feedlot growth. The company also partakes in a carcass assessment which draws upon data extracted from analysing feedlot trials and the specie's overall climate durability. Female Kynunas are culled if they fall out of sync with regular times for calving, and therefore are without calves for an extended period of time. Bulls are also closely monitored, with particular attention given to testicle size, physical structure, feet composition and growth which is based on a predominantly grass based diet.