Pyrrolizidine alkaloidosis of cattle associated with Senecio lautu     

JW NOBLE  JdeB CROSSLEY  BD HILL†  RJ PIERCE†  RA McKENZIE‡  M. DEBRITZ§  AA MORLEY¶ 《Australian veterinary journal》1994,71(7):196-200

Summary Serious incidents of pyrrolizidine alkaloidosis of cattle in 10 herds exposed to the Australian native plant, Senecio lautus (Asteraceae), were seen in central Queensland during 1988–1992. The deaths of 226 cattle were recorded. A mean of 8% of cattle died in affected groups (range 2 to 58%). Sickness and deaths usually occurred some months after access to S lautus. Typically, affected cattle lost body condition to the point of emaciation before dying and had persistent diarrhoea. Some animals developed abnormal behaviour and died after a shorter illness. Liver specimens from affected cattle in all herds contained lesions consistent with pyrrolizidine alkaloidosis. Thin layer chromatography of extracts of blood and liver samples from cattle from 5 herds detected pyrrolic metabolites. The identity of these was confirmed by mass spectroscopy on samples from one herd. Unseasonal autumn and winter rain after a dry summer appeared to favour growth of S lautus at the expense of other pasture species. A subsequent dry period promoted consumption of S lautus and was followed by a cluster of poisoning incidents.  相似文献   

Relationships between vaccine and virulent strains of Babesia bovis during co-infection in calves     

WK JORGENSEN  PJ JESTON  PM BOWLES  J. CROFT  AE LEW  JB MOLLOY  RJ DALGLIESH 《Australian veterinary journal》1998,76(1):57-58

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Reply     

RJ DOBSON  RB BESIER  EH BARNES  SCJ LOVE  K BELL  LF Le JAMBRE 《Australian veterinary journal》2002,80(7):438-438

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Congenital hydranencephaly and arthrogryposis of Corriedale sheep     

RJ WHITTINCTON  JRW GLASTONBURY  JW PLANT†  MRW BARRY‡ 《Australian veterinary journal》1988,65(4):124-127

SUMMARY: A syndrome of congenital malformations in Corriedale sheep characterised by brachygnathia inferior, campylognathia, tetraemlic arthrogryposis, kyphoscoliosis, hydranencephaly and hypoplasia of the brain stem, cerebellum and spinal cord occurring in various combinations is described. Histologically there was generalised hypomyelinogenesis and hypoplasia of the central nervous system with neurogenic atrophy of skeletal muscle. The syndrome resembled that caused by congenital infection with Akabane virus, however, serological, pathological and epidemiological data indicated that Akabane virus was not involved. The results of a breeding trial suggested that the disorder may be transmitted with an autosomal recessive mode of inheritance.  相似文献   

Embryo wastage in the ewe following inductionof ovulation with synthetic gonadotrophin releasing hormone (GnRH)     

SK WALKER  RJ LAMPE  TM HEARD  CD MATTHEWS  RF SEAMARK 《Australian veterinary journal》1990,67(11):415-415

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Retropharyngeal pain and swelling in a dog     

GB HUNT  KR YOUMANS  DJ SIMPSON  RJ STEEL 《Australian veterinary journal》1997,75(7):476-476

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In-vitro antibacterial properties of tilmicosin against Australian isolates of Pasteurella multocida and Actinobacillus pleuropneumoniae from pigs   总被引：1，自引：0，他引：1  

PJ BLACKALL  T. ASAKAWA  RJ GRAYDON  M. WHITE  M. ADAMSON  LK WADE  LB LOWE 《Australian veterinary journal》1995,72(1):35-36

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Influence of environmental temperature on experimental infection of redfin perch (Perca fluviatilis) and rainbow trout (Oncorhynchus mykiss) with epizootic haematopoietic necrosis virus, an Australian iridovirus   总被引：1，自引：0，他引：1  

RJ WHITTINGTON  GL REDDACLIFF 《Australian veterinary journal》1995,72(11):421-424

SUMMARY Experimental transmission of epizootic haematopoietic necrosis virus (EHNV) to adult redfin perch Perca fluviatilis and juvenile rainbow trout Oncorhynchus mykiss was undertaken at different water temperatures using intraperitoneal (IP) and bath inoculation. Redfin perch were highly susceptible to EHNV by both routes of infection. Bath inoculation with as few as 0.08 TCID₅₀. _mL^-1 was lethal. The incubation period in redfin perch was about 11 days at a water temperature of 19–21°C but was longer at colder temperatures and disease did not occur at temperatures below 12°C. The longest incubation period recorded in redfin perch was 28 days. Rainbow trout were not susceptible to infection by bath inoculation but the disease was reproduced after IP inoculation with 10^5.6 TCID₅₀ at water temperatures ranging from 8–21°C. The incubation period was 3–10 days at 19–21°C, but was up to 32 days at 8–10°C. Persistent infection with EHNV was detected by virus isolation in a clinically unaffected rainbow trout after 63 days. The implications of these findings in the understanding of the epidemiology of EHNV infection are discussed.  相似文献   

Diet in the Treatment of Impaired Kidney Function ("Nephritis") in Dogs     

R. GORDON BOOTH 《The Journal of small animal practice》1963,4(5):355-358

Abstract— The rationale of dietary treatment of uraemia, arising from impaired kidney function is discussed. A diet containing a strictly limited quantity of very high quality protein is advocated.  相似文献   

Studies on the pharmacodynamics of succinylcholine chloride in the horse     

BELLING TH  BOOTH NH 《Journal of the American Veterinary Medical Association》1955,126(934):37-42

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