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Coulter GH, Mapletoft RJ, Kozub GC, et al. Scrotal circumference of two-year-old bulls of several beef breeds. Theriogenology. 1987;27(3):485-91doi: 10.1016/0093-691x(87)90236-6.
Coulter, G. H., Mapletoft, R. J., Kozub, G. C., & Cates, W. F. (1987). Scrotal circumference of two-year-old bulls of several beef breeds. Theriogenology, 27(3), 485-91. https://doi.org/10.1016/0093-691x(87)90236-6
Coulter, G H, et al. "Scrotal circumference of two-year-old bulls of several beef breeds." Theriogenology vol. 27,3 (1987): 485-91. doi: https://doi.org/10.1016/0093-691x(87)90236-6
Coulter GH, Mapletoft RJ, Kozub GC, Cates WF. Scrotal circumference of two-year-old bulls of several beef breeds. Theriogenology. 1987 Mar;27(3):485-91. doi: 10.1016/0093-691x(87)90236-6. PMID: 16726253.
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Theriogenology. 1987 Mar;27(3):485-91. doi: 10.1016/0093-691x(87)90236-6.

Scrotal circumference of two-year-old bulls of several beef breeds.

Theriogenology

G H Coulter, R J Mapletoft, G C Kozub, W F Cates

Affiliations

  1. Research Station, Agriculture Canada, Lethbridge, Alberta T1J 4B1 Canada.

PMID: 16726253 DOI: 10.1016/0093-691x(87)90236-6

Abstract

Scrotal circumference (SC) was measured on 7,918 2-yr-old Angus, Charolais, horned and polled Herefords, Limousin, Shorthorn, and Simmental bulls presented to culling committees at six show/sales between 1977 and 1983. Only SC data from bulls within the age range of 24 +/- 4 mo were used. Scrotal circumference data were corrected across breeds for the effects of location-year and sire and were adjusted to a common bull age of 730 d. The adjusted mean SC (+/- SE) for 2-yr-old beef bulls was Simmental, 38.8 +/- 0.10 cm (n = 540); Aberdeen Angus, 37.2 +/- 0.09 cm (n = 629); Charolais, 36.3 +/- 0.09 cm (n = 499); horned Hereford, 36.1 +/- 0.03 cm (n = 3,769); polled Hereford, 35.6 +/- 0.04 cm (n = 2,170); Shorthorn, 34.9 +/- 0.11 cm (n = 231); and Limousin, 32.2 +/- 0.18 cm (n = 80). The authors' recommendations of minimum acceptable SC for 2-yr-old beef bulls are Simmental, 36.0 cm; Angus and Charolais, 35.0 cm; horned and polled Herefords and Shorthorn, 34.0 cm; and Limousin, 33.0 cm.

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