A comparison of production traits and welfare implications between horned and polled beef bulls

Canadian Journal of Animal Science

Volumn 76, Issue 1, 1996, Pages 1-5

  Stookey, J M ^a   Goonewardene, L A ^b  

^a UNIVERSITY OF SASKATCHEWAN   (Canada)

^b ALBERTA AGRICULTURE AND RURAL DEVELOPMENT   (Canada)

Author keywords

Polled horned bulls ADG test station

Indexed keywords

EID: 0348198490     PISSN: 00083984     EISSN: None     Source Type: Journal    
DOI: 10.4141/cjas96-001     Document Type: Article

References (25)

1. American Veterinary Medical Association 1994. Caring for animals: 1994 AVMA directory. Schaumburg IL. 888 pp.
2. Battaglia, R. A. and Mayrose, V. B. 1981. Handbook of livestock management techniques. Burgess Publ. Co., Ohms Lane, MN. 140 pp.
3. Blockey, M. A. and Taylor, E. G. 1984. Observations on spiral deviation of the penis in beef bulls. Aust. Vet. J. 61: 141-145.
4. Canadian Veterinary Medical Association 1994. CVMA directory. Ottawa. ON. 192 pp.
5. Coulter, G. H. and Keller, D. G. 1982. Scrotal circumference of young beef bulls: Relationship to paired testes weight, effect of breed and predictability. Can. J. Anim. Sci. 62: 133-139.
6. Estes, R. D. 1991. The significance of horns and other male secondary sexual characters in female bovids. Appl. Anim. Behav. Sci. 29: 403-451.
7. Frisch, J. E., Nishimura, H., Cousins, K. J. and Turner, G. H. 1980. The inheritance and effect on production of polledness in four crossbred lines of beef cattle. Anim. Prod. 31: 119-126.
8. Goonewardene, L. A. and Hand, R. K. 1991. Studies on dehorning steers in Alberta feedlots. Can. J. Anim. Sci. 71: 1249-1252.
9. Grandin, T. 1980. Bruises and carcass damage. Int. J. Stud. Anim. Prob. 1: 121-137.
10. Koots, K. R and Crow, G. H. 1989. Breed structure of pedigreed Hereford cattle in Canada. Can. J. Anim. Sci. 69: 627-634
11. Kretzmann, P. M., Wallace, H. G. and Weaver, D. B. 1985. The role of horned cattle in beef carcass bruising at Cato Ridge abattior. J. South. Afric. Vet. Assn. 56: 199-200.
12. Lange, H. 1989. Investigations on polledness and head conformation. Thesis, Ludwig-Maximilians-Universat Muchen, Federal Republic of Germany.
13. Lange, H., Brem, G., Utz, J., Gottechalk, A., Karnbaum, B. and Krausslich, H. 1990. Bayerisches Landwirtschaftliches Jahrbuch 67: 15-68.
14. Long, C. R. and Gregory, K. E. 1978. Inheritance of the horned, scurred and polled condition in cattle. J. Herid. 69: 395-400.
15. Lunstra, D. D., Gregory, K. E. and Cundiff, L. V. 1988. Heritability estimates and adjustment factors for the effects of bull age and age of dam on yearling testicular size in breeds of bulls. Theriogenology 30: 127-136.
16. Marlowe, T. J., Freund, R. J. and Graham, J. B. 1962. Influence of age, breed, flesh condition, nursing and season on weight and grade of beef cattle. J. Anim. Sci. 21: 346-354.
17. Meischke, H. R. C., Ramsay, W. R. and Shaw, F. D. 1974. The effect of horns on bruising cattle. Aust. Vet. J. 50: 432-434.
18. Newman, J. A., Tennessen, T., Tong, A. K. W., Coulter, G. H., Mears, G. J. and Doorneball, H. 1990. Effects of Zeranol implantation on growth, feed conversion, testicular development and behavioral traits of young bulls fed for slaughter. Can. J. Anim Sci. 70: 1005-1016.
19. Prakhov, L. and Semibratova, T. 1983. The formation of a herd of Kazakh Whiteheaded cattle. Molochnoe-i-Myasnoe-Skotovodstvo. No. 1. 41-42.
20. SAS Institute, Inc. 1990. SAS/STAT user's guide: Statistics. Version 6 ed. SAS Institute, Inc., Cary, NC.
21. Serban, D. 1984. The formation of a hornless population of Romanian brown cattle. Lucrari stiintifice Institutul de Cercetare si Productie pentru Crestera Bovinelor No 9: 63-74.
22. Toelle, V. D. and Robinson, D. W. 1985. Estimates of genetic correlations between testicular measurements and female reproductive traits in cattle. J. Anim. Sci. 60: 89-100.
23. U. K. Ministry of Agriculture, Fisheries and Food 1992. Summary of the law relating to farm animal welfare. MAFF Productions, London, U. K. 31 pp.
24. Wilton, J. W. and McMorris, M. R. 1992. Influence of performance testing on reproductive performance of beef bulls. Can. J. Anim. Sci. 72: 23-30.
25. Winks, L., Homes, A. E. and O'Rourke, P. K. 1977. Effects of dehorning and tipping on live weight gains of mature Brahman crossbred steers. Aust. J. Exp. Agric. Anim. Husb. 17: 16-19.