References
- McKenzie , J.R. 1981 . Effect of growth implants on sheep and cattle production . Proc. N.Z. Soc. An. Prod. , 41 : 294 – 296 .
- McNerney , D.M. 1985 . Effect of zeranol on beef steer growth rate in four geographical locations of New Zealand . N.Z. vet. J. , 33 : 19 – 19 .
- Peters , A. 1985 . “ Correct use of growth promoting implants ” . In Practice 14 – 14 . In, Jan. 1984
- Scales , G.H. 1984 . Beef Cattle, Implants for Increased Production AgLink FPP 523 , Wellington : N.Z. Ministry of Agriculture & Fisheries .