Isolation of oxfendazole resistant Cooperia oncophora in cattle     

Jackson RA  Townsend KG  Pyke C  Lance DM 《New Zealand veterinary journal》1987,35(11):187-189

A field strain of Cooperia oncophora resistant to oxfendazole was isolated from a commercial cattle rearing property in Waikato, New Zealand. Resistance to oxfendazole was assessed by means of a faecal egg count depression test and an in vitro egg hatch test. This is the first documented case of anthelmintic resistance in Cooperia spp. and the first report of anthelmintic resistance in cattle in New Zealand.  相似文献   

An unusual manifestation of holoprosencephaly in a pig          下载免费PDF全文

Holmes CJ  Partlow GD  Fisher KR 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(12):770-771

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Guelph international development consultants          下载免费PDF全文

Howell DG 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(8):546-547

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Physiopathologie et thérapeutique de l'utérus en période puerpérale chez la vache laitière: revue          下载免费PDF全文

Vaillancourt D 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(6):330-337

Accurate diagnosis and effective therapeutics of uterine pathologies in cattle represent some of the daily preoccupations for the veterinarians involved in herd health medicine. A rational approach requires a competence based on fundamental and clinical knowledge.

The physiological aspects of the uterine involution in cattle are reviewed with emphasis about the in utero bacteriological dynamic and the endocrinological evolution during this period. The pathogenesis of uterine pathologies is discussed following new research results and new knowledge on the mechanisms of uterine defense. The value and limitations of the clinical diagnosis is briefly reviewed. The therapeutics of uterine pathologies is debated in relation with the pathophysiology of the uterine involution and with the rational of the traditional and new concepts of the treatment of the postpartum uterine pathologies.

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Approche clinique d'une porcherie: examen du bâtiment          下载免费PDF全文

Denicourt M  Gradel D  Martineau GP 《The Canadian veterinary journal. La revue veterinaire canadienne》1987,28(6):346-354

Environment is of primary importance to animal health and development. Ventilation is a problem in establishing an adequate environment, particularly in swine housing. In order for veterinarians to deal with this problem, a fundamental understanding of the building is necessary. The present article describes a clinical approach to ventilation diagnosis problems in the piggery.  相似文献   

Animal welfare considerations of laparoscopic A.I     

Conway DA 《New Zealand veterinary journal》1987,35(7):117-118

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Selenium response in dairy cattle     

Tasker JB  Bewick TD  Clark RG  Fraser AJ 《New Zealand veterinary journal》1987,35(8):139-140

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Suspected selenium poisoning in a horse     

Dewes HF  Lowe MD 《New Zealand veterinary journal》1987,35(4):53-54

A case of selenium poisoning was suspected following the administration of 325 micromol selenium a day as sodium selenate (25 mg Se) for five consecutive days. The main signs were confined to changes in the integument which were loss of hair from the mane and tail, disintegration of the skin of the anus, lips, prepuce and scrotum, and separation of the hooves from the coronary corium. Periodic analyses of blood, hair and hoof parings from the sole correlated strongly with blood and identified horn and hair as important additional routes of excretion.  相似文献   

The effects of artificially-induced fly-strike on food intake and liveweight gain in sheep     

Heath AC  Bishop DM  Tenquist JD 《New Zealand veterinary journal》1987,35(4):50-52

A single, artificially-induced fly-strike with Lucilia sericata larvae was associated with a rapid (decline in food intake in sheep, with a consequent reduction in liveweight. Loss of weight ranged from 0.5 to 5.5 kg over four to six days and recovery to pre-infestation liveweight took three to 36 days. Pair-fed, uninfested partners of these sheep also showed a reduction in liveweight, whereas uninfested sheep in some experiments fed ad libitum showed either little change or a gain in liveweight over the same period. In general, maggot infested sheep took less time to regain weight than did their pair-fed partners although the weight lost as a proportion of initial weight was similar in both groups. Loss of appetite alone would appear to account for these events.  相似文献   

The osmolality of caecal contents in piglets following weaning     

Hampson DJ 《New Zealand veterinary journal》1987,35(3):35-36

Pigs weaned for five days had caecal contents with significantly lower osmolalities than those of unweaned animals of the same age. Supplementation of a standard weaning diet with therapeutic levels of oxytetracycline to suppress the normal large intestinal microbial flora did not significantly further reduce osmolarity of caecal contents after weaning. This observation suggests that microbial activity in the large intestine may not be sufficiently developed by five days after weaning to have a major influence on absorptive processes at that site. Incomplete development of the large intestinal microflora may be one more factor which acts to predispose the young pig to diarrhoea after weaning.  相似文献