References
- Chalmers , K. 1977 . The efficacy of oxfendazole against natural infections of nematodes & cestodes in sheep. . N.Z. vet.J. , 25 : 266 – 9 .
- Kemp , G.K. and Smith , C.F. 1982 . Anthelmlntic resistance survey in New Zealand . N.Z. vet.J. , 30 : 141.4 – 141.4 .
- Kettle , P.R. , Vlassoff , A. , Ayling , J.M.: McMurtry , Smith , S.J. and Watson , A.J. 1982 . A survey of nematode control measures used by sheep farmers and of anthelmintic resistance on their farms. Part 2. South Island excluding the Nelson region. . N.Z. vet.J. , 30 : 79 – 8l .
- Kettle , P.R. , Vlassoff , A. , Lukies , J.M. , Ayling , J.M. and McMurtry , L.W. 1981 . A survey of nematode control measures used by sheep farmers and of anthelmintic resistance on their farms. Part 1. North Island and the Nelson region of the South Island. . N.Z. vet.J. , 29 : 81 – 3 .
- McKenna , P.B. 1981 . The diagnostic value and interpretation of faecal egg counts in sheep. . N.Z. vet.J. , 29 : 129 – 32 .
- McKenna , P.B. in press . Anthclmintic resistance in the, southern North Island . Surveillance ,
- McKenna , P.B. and Hughes , P.L. 1986 . Now-confirmation of anthelmintic resistance in Ostertagiu spp. . N.Z. vet.J. , 34 : 126 – 7 .
- McKenna , P.B. and Seifert , D.A. 1985 . Morantel resistance in Trichostrongylus colubriforms. . N.Z. vet.J. , 33 : 166 – 7 .
- Middelberg , A. and McKenna , P.B. 1983 . Oxfcndazolc resistance in Nematodirus spathiger. . N.Z. vet.J. , 31 : 65 – 6 .
- Pomroy , W.E. , Charleston , W.A.G. and West , D.M. 1985 . A strain of Haemonchus contortus resistant to thiophanatc. . N.Z. vet.J. , 33 : 59 – 60 .
- Prichard , R.K. 1978 . “ Anthelmintics ” . In The Therapeutic Jungle. Proc. No. 39 Vol. 1 p421.63. – p421.63. . Sydney : Post Grad. Comm. Vet. Sci., .
- Robertson , T.G. and Elliott , D.C. 1966 . The Laboratory assessment of worm parasite populations in sheep. . N.Z.J. agric. Res. , 9 : 350 – 8 .
- Vlassoff , A. and Kettle , P.R. 1980 . Benzimidazole resistance in Haemonchus contortus. . N.Z. vet.J. , 38 : 23 – 4 .