References
- Dun , T. G. , Wiltbank , J. M. , Ingalls , J. E. and Zimmerman , D. R. 1964 . Energy level and reproduction in beef animals . Proc. Am. Soc. anim. Sci. , 15 : U1 – U6 .
- Fielden , E. D. and McFarlane , D. 1959 . Some aspects of the Gisborne beef cattle survey . Massey Agric. Coll. Sheepfarming Annual 1959 , : 29 – 39 .
- Gregory , P. W. , Guilbert , H. R. , Shelby , C. E. and Clark , R. T. 1963 . Growth of Hereford cows selected and rejected for breeding . Growth , 27 : 205 – 223 .
- Guilbert , H. R. and McDonald , A. 1933 . Weight records on purebred beef cattle during growth, gestation and lactation together with data on reproduction . Proc. Am. Soc. anim. Prod. , 1933 : 244 – 244 .
- Guilbert , H. R. and Gregory , P. W. 1952 . Some features of growth and development of Hereford cattle . J. Anim. Sci. , 11 : 1 – 16 .
- McClure , T. J. 1965 . A nutritional cause of low nonreturn rates in dairy herds . Aust. vet. J. , 41 : 119 – 122 .
- Newsam , I. D. B. 1960 . Experimental Vibrio foetus infection in heifers. Part 1. Infection and conception rates and diagnosis . Aust. vet. J. , 36 : 426 – 431 .
- Tulloh , N. M. 1963 . Comparative breed studies of beef cattle . Aust. J. agric. Res. , 14 : 882 – 897 .
- Young , J. S. 1965 . Infertility in range cattle . N.Z. vet. J. , 13 : 1 – 10 .