References
- Anderson , N. , Armour , J. , Jarrett , W. F. H. , Jennings , F. W. , Ritchie , J. S. D. and Urquhart , G. M. 1965 . A field study of parasitic gastritis in cattle . Vet. Rec. , 77 : 1196 – 1204 .
- Anderson , N. , Armour , J. , Eadie , R. M. , Jarrett , W. F. H. , Jennings , F. W. , Ritchie , J. S. D. and Urquhart , G. M. 1966 . Experimental Ostertagia ostertagi infections in calves: results of single infections with five graded dose levels of larvae . Amer. J. vet. Res. , 27 : 1259 – 1265 .
- Anderson , N. , Armour , J. , Jarrett , W. F. H. , Jennings , F. W. , Ritchie , J. S. D. and Urquhart , G. M. 1967 . Experimental infections of Ostertagia ostertagi in calves: results of two regimens of multiple inoculations . Amer. J. vet. Res. , 28 : 1073 – 1077 .
- Armour , J. , Jennings , F. W. and Urquhart , G. M. 1967a . The possible existence of two strains of Ostertagia ostertagi . Vet. Rec. , 80 : 208 – 209 . Corresp.
- Armour , J. , Jennings , F. W. and Urquhart , G. M. 1967b . The possible existence of two strains of Ostertagia ostertagi . Vet. Rec. , 80 : 605 – 606 . Corresp.
- Bailey , W. S. 1954 . Clinical diagnosis of parasitic gastro-enteritis of cattle . Georgia Vet. , 6 : 2 – 2 .
- Brunsdon , R. V. 1964 . The incidence of gastrointestinal nematodes in cattle in New Zealand . N.Z. vet. J. , 12 : 135 – 139 .
- Brunsdon , R. V. 1968 . Trichostrongyle worm infection in cattle: ostertagiasis — effect of a field outbreak on production, with a review of the disease syndromes, problems of diagnosis and treatment . N.Z. vet.J. , 16 : 176 – 187 .
- Doran , D. J. 1955 . The course of infection and pathogenic effect of Trichostrongylus axei in calves . Amer. J. vet. Res. , 16 : 401 – 409 .
- Fourie , P. J. J. 1931 . The haematology and pathology of haemonchosis in sheep . 17th Rep. Dir. Vet. Ser. and Anim. Ind. Union S. Afr. , : 495 – 572 .
- Herlich , H. 1956 . A digestion method for postmortem recovery of nematodes from ruminants . Proc. helminth. Soc. Wash. , 23 : 102 – 103 .
- Herlich , H. 1959 . Experimental infections of cattle with the stomach worms Ostertagia ostertagi and Trichostrongylus axei . Proc. Helm. Soc. Wash. , 26 : 97 – 102 .
- Herlich , H. 1965 . The effects of the intestinal worms, Cooperia pectinata and Cooperia oncophora, on experimentally infected calves . Amer. J. vet. Res. , 26 : 1032 – 1036 .
- Hotson , I. K. 1967 . Ostertagiasis in cattle . Aust.vet. J. , 43 : 383 – 387 .
- Jarrett , W. F. H. 1966 . “ Pathogenic and expulsive mechanisms in gastro-intestinal nematodes ” . In The Pathology of Parasitic Diseases , Edited by: Taylor , A. E. R. 53 – 53 . Oxford : Blackwell .
- Jennings , F. W. , Armour , J. , Lawson , D. D. and Roberts , R. 1966 . Experimental Ostertagia ostertagi infections in calves: studies with abomasal cannulas . Amer. J. vet. Res. , 27 : 1249 – 1257 .
- Kates , K. C. and Turner , J. H. 1953a . A comparison of the pathogenicity and course of infection of two nematodes of sheep, Nematodirus spathiger and Trichostrongylus colubriformis, in pure and mixed infections . Proc. Helm. Soc. Wash. , 20 : 117 – 124 .
- Kates , K. C. and Turner , J. H. 1953b . An experiment on the pathogenic interaction of Haemonchus contortus and Nematodirus spathiger in lambs . J. Parasitol. , 39 ( 4 ) : 35 – 35 . Sec. 2
- Martin , W. B. , Thomas , B. A. C. and Urquhart , G. M. 1957 . Chronic diarrhoea in housed cattle due to atypical parasitic gastritis . Vet. Ree. , 69 : 736 – 739 .
- Michel , J. F. 1963 . The phenomena of host resistance and the course of infection of Ostertagia ostertagi in calves . Parasit. , 53 : 63 – 84 .
- Michel , J. F. 1966 . The epidemiology and control of parasitic gastro-enteritis in calves . Pub. IV. Int. Tagung Weltgesellschaft Buiatrik. Zurich ,
- Michel , J. F. 1967a . Some aspects of resistance to animal and human helminths. Acquired resistance and its effects on populations of Ostertagia ostertagi . Proc. R. Soc. Med. , 60 : 167 – 168 .
- Michel , J. F. 1967b . The possible existence of two strains of Ostertagia ostertagi . Vet. Rec. , 80 : 316 – 317 . Corresp.
- Michel , J. F. 1967c . Methods of testing anthelmintics . Vet. Rec. , 80 : 336 – 336 . Corresp
- Michel , J. F. 1967d . Regulation of egg output of populations of Ostertagia ostertagi . Nature , 215 : 1001 – 1002 .
- Michel , J. F. 1967e . The possible existence of two strains of Ostertagia ostertagi . Vet. Rec. , 81 : 718 – 718 . Corresp
- Michel , J. F. 1968a . Faecal egg counts in infections of gastro-intestinal nematodes in cows . Vet. Rec. , 82 : 132 – 133 .
- Michel , J. F. 1968b . The control of stomach-worm infection in young cattle . J. Brit. Grass. Soc. , 23 : 165 – 173 .
- Mulligan , W. , Dalton , R. G. and Anderson , N. 1963 . Ostertagiasis in cattle . Vet. Rec. , 75 : 1014 – 1014 . Corresp
- Raynaud , J. P. 1968 . L'ostertagiose bovine: Revue bibliographique raisoné sur la maladie, son traitment et sa prophylaxie . Recl. Méd. vét. , 144 : 743 – 746 .
- Ritchie , J. D. S. , Anderson , N. , Armour , J. , Jarrett , W. F. H. , Jennings , F. W. and Urquhart , G. M. 1966 . Experimental Ostertagia ostertagi infections in calves: parasitology and pathogenesis of a single infection . Amer. J. vet. Res. , 27 : 659 – 667 .
- Ross , J. G. 1963 . Experimental infections of calves with the nematode parasite Ostertagia ostertagi . Vet. Rec. , 75 : 129 – 132 .
- Ross , J. G. and Dow , C. 1965a . Field and experimental infections of calves with the nematode parasite, Ostertagia ostertagi . Brit. vet. J. , 121 : 18 – 27 .
- Ross , J. G. and Dow , C. 1965b . The course and development of the abomasal lesions in calves experimentally infected with the nematode parasite Ostertagia ostertagi . Brit. vet. J. , 121 : 228 – 233 .
- Ross , J. G. , Purcell , D. A. , Dow , C. and Todd , T. R. 1967 . Experimental infections of calves with Trichostrongylus axei: the course and development of infection and lesions in low level infection . Res. vet. Sci. , 8 : 206 – 210 .
- Ross , J. G. , Purcell , D. A. , Dow , C. and Todd , T. R. 1968a . Experimental infections of calves with Trichostrongylus axei: observations on lethal infections . Res vet. Sci. , 9 : 314 – 318 .
- Ross , J. G. , Purceli , D. A. , Todd , J. R. and Dow , C. 1968b . Combined infections of calves with the nematode parasites Trichostrongylus axei and Ostertagia ostertagi . Brit. vet. J. , 124 : 299 – 305 .
- Rubin , R. 1967 . Some observations on the interpretation of faecal egg counts . Amer. J. vet. clin. Path. , 1 : 145 – 148 .
- Sollod , A. E. 1967 . The possible existence of two strains of Ostertagia ostertagi . Vet. Rec , 81 : 547 – 548 . Corresp