References
- Barger , I.A. 1986 . The statistical distribution of trichostrongylid nematodes in grazing lambs . Int. J. Parasitol. , 15 : 645 – 649 .
- Brunsdon , R.V. 1963 . The effect of infestation by nematodes of the family Tricho-strongylidae upon the liveweight gain and wool production of young sheep . N.Z. vet. J. , 11 : 144 – 148 .
- Brunsdon , R.V. 1964 . The effect of infestation by nematodes of the family Tricho-strongylidae and the tapeworm Moniezia expansa, upon the liveweight gain and wool production of young sheep . N.Z. vet. J. , 12 : 129 – 134 .
- Brunsdon , R.V. 1966 . Further studies of the effect of infestation by nematodes of the family Trichostrongylidae in sheep: An evaluation of a strategic drenching programme . N.Z. vet. J. , 14 : 77 – 83 .
- Brunsdon , R.V. 1970 . Within-flock variations in strongyle worm infections in sheep: The need for adequate diagnostic samples . N.Z. vet. J. , 18 : 185 – 188 .
- Charleston , W.A.G. 1980 . Anthelmintic resistance . N.Z. vet. J. , 28 : 197 – 197 .
- Crofton , H.D. 1971 . A quantitative approach to parasitism . Parasitology , 62 : 179 – 193 .
- Crofton , H.D. 1971 . A model of host-parasite relationships . Parasitology , 63 : 343 – 364 .
- Donald , A.D. 1968 . Population studies on the infective stages of some nematode parasites of sheep III. The distribution of strongyloid egg output in flocks of sheep . Parasitology , 58 : 951 – 960 .
- Gordon , H.McL. 1973 . “ Epidemiology of helminthosis of sheep: Diagnosis and therapy ” . In Proc. No. 19, Courses for Veterinarians on Parasitology and Epidemiology , 369 – 375 . University of Sydney .
- Hunter , G.C. and Quenouille , M.H. 1952 . A statistical examination of the worm egg count sampling technique for sheep . J. Helminthol. , 26 : 157 – 170 .
- 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 South Island . N.Z. vet. J. , 29 : 481 – 483 .
- Kettle , P.R. , Vlassoff , A. , Ayling , J.M. , McMurtry , L.W. , 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 – 81 .
- Kingsbury , P.A. 1965 . Relationship between egg counts and worm burdens of young sheep . Vet. Rec. , 77 : 900 – 901 .
- McKenna , P.B. 1981 . The diagnostic value of interpretation of faecal egg counts in sheep . N.Z. vet. J. , 29 : 129 – 132 .
- McKenna , P.B. and Simpson , B.H. 1986 . The estimation of gastrointestinal strongyle worm burdens in young sheep flocks: A new approach to the interpretation of faecal egg counts, II Evaluation . N.Z. vet. J. , (in press)
- Roberts , J.L. and Swan , R.A. 1982 . Quantitative studies of ovine haemonchosis. 3 The interpretation and diagnostic significance of the changes in serial egg counts of Haemonchus contortus in a sheep flock . Vet. Parasitol. , 9 : 211 – 216 .