World K's Shigeshigetani

World K's Shigeshigetani (FB2907 / WKSFP1593) is, alongside Sanjirou, one of the two most famous 'second-generation' Wagyu sires produced outside Japan. He is US-born from imported parents: sired by World K's Haruki 2 out of Suzutani, the same elite Japanese cow that produced Sanjirou, making the two paternal-different maternal brothers. Roughly 75% Tajima, he carries the Kumanami-strain 'snowflake' marbling of his maternal grandsire Shigeshigenami J10632, one of Japan's most important historical sires (ranked #4 by Kenichi Ono behind Yasufuku J930, Dai 7 Itozakura and Kitaguni 7/8). Breeders prize Shigeshigetani for exceptional prepotency, the reliability with which he stamps outstanding, consistent marbling on his calves, backed by standout large-scale feeding data. Like Sanjirou, he is a foundation-era pillar of Australian and North American genetics but should be recorded as a US-born 2nd-generation sire, not a Japanese import — the same category the WagyuTank list already admits via Kitaguni Jr. World K fed 3,800 F1 steers to a 540-day ADG of 0.98kg, with 90% grading 9+ on the Australian scale (three full grades above USDA prime) and the rest 7-9. Breeders there observed him throwing tall, long cattle with good thickness and good dispositions, and noted his semen was already scarce by 2009.