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1.
M.P. Reichel 《New Zealand veterinary journal》2013,61(1)
Abstract Extract Neospora caninum is a major cause of disease in cattle and dogs, manifesting with abortions in cattle, and hind limb paresis in mostly young dogs (1) . Previous reports from New Zealand suggest that around 30% of bovine abortions may be due to Neospora (2) (3) and that about 40% of recently aborted dairy cows have antibodies against Neospora (4) . 相似文献
2.
Abstract In the June 1998 issue of the New Zealand Veterinay Journal, a clinical review was published focusing on aspects of the protein nutrition of dairy cattle (Westwood et al., 1998). The authors wrote: “Most species of rumen bacteria can use ammonia for growth, but some, particularly bacteria which ferment cell wall carbohydrates, use or have obligate requirements for amino acids and peptides (Russel et al., 1992)”. 相似文献
3.
Abstract Extract Sir, — Leptospira interrogans serovar balcanica is now recognised as a widespread infection among opossums in New Zealand (2) and the possibility of domestic stock acting as accidental hosts has recently been demonstrated. (3) With the recent development of hardjo vaccines (1) (4) for controlling infection with this serovar in the maintenance hosts, stock could be left vulnerable to infection with other prevalent serovars such as balcanica. 相似文献
4.
H. Burbidge 《New Zealand veterinary journal》2013,61(3)
Abstract Extract It is always satisfying to attempt to explain the clinical signs of a disease from the altered physiology that occurs. In the article Neurogenic laryngeal paralysis in the dog(1) the clinical signs of laryngeal stridor, increased respiratory rate and exercise intolerance could be explained as follows: 相似文献
5.
PR Wilson 《New Zealand veterinary journal》2013,61(5)
Abstract Extract I refer to the correspondence by Dr Jackson (2003) in the August 2003 issue of the New Zealand Veterinary Journal, regarding citation of articles published in non-peer reviewed publications in this journal. 相似文献
6.
T.J. McClure B.V.Sc. 《New Zealand veterinary journal》2013,61(5):107-112
Abstract Extract Sir.—I refer to the paper by Day(1) on induction of parturition in a dairy herd. This report was read with a considerable degree of interest as it included results which are significantly different from those which we would have expected from extensive field experience in New Zealand and overseas. 相似文献
7.
Abstract Extract As dairy herds get larger cows have to walk further, and foot care becomes more important. Lameness from bruising of the soles of the feet is a particular hazard (Tranter and Morris 1991, especially on hard tracks with loose angular stones or grit (Clackson and Ward 1991. One way of reducing this problem might be to provide an overlay of woodchips on top of the normal hard track. This would provide a softer grit-free surface, which could be more comfortable for the cows. 相似文献
8.
Abstract Extract The paper by Goodwin et al (2004) which appeared in the August 2004 issue of the New Zealand Veterinary Journal highlighted the prevalence and costs to the sheep industry of pneumonia in lambs. The costs are considerable, and the article begs the question, “what can sheep farmers do to reduce the effects of pneumonia in lambs?” 相似文献
9.
Abstract Extract Recently, we reported on outbreaks of Leptospira interrogans serovar pomona infection in newly weaned lambs(1). It was suggested that wet environmental conditions played an important role in the pathogenesis of the disease in that class of sheep. This communication presents observations on another case of ovine leptospirosis, one that occurred under different circumstances, i.e. different season, age and environmental conditions. 相似文献
10.
Abstract Extract Sir:— In the 12 months since the completion of the trials reported in this Journal(1) over 3000 doses of yohimbine have been used to reverse xylazine sedation in deer at Invermay and in field trials throughout New Zealand. During this time four deer have suffered transient convulsions characterised by tetanic spasms, paddling of the limbs, inability to stand and rapid nodding of the head. This was accompanied by rapid blinking of the eyelids and grinding of the teeth. These signs abated in 5 to 10 minutes after which time the deer relaxed and regained its ftet in 10 to 20 minutes. In the 30 minutes prior to yohimbine administration these deer had received a single injection of xylazine (0.5 to 1.0 mg/kg) and on one occasion the xylazine was given in conjunction with Img of fentanyl and 8 mg azaperone (0.1 ml Fentaz). On each occasion the intention was to inject yohimbine at the recommended dose rate (1) (0.2 to 0.25 mg/kg) into the jugular vein and the convulsions commenced within five seconds of this injection. Normally it takes one to three minutes for reversal ofxylazine sedation to occur. Thus it is highly likely that these injections were intra- carotid, thereby resulting in a very high concentration of yohimbine in the cranial arteries. All four animals recovered and there were no apparent after effects. These convulsions occured more rapidly hut were less severe than those expcrienced with the combination of yohimbine and 4-aminopyridine reported in the earlier trail.(1) 相似文献
11.
P.B. McKenna 《New Zealand veterinary journal》2013,61(4)
Abstract Extract In a recent publication in this journal(1), administration of oral and injectable moxidectin (Vetdectin, Cyanamid N.Z. Ltd) to goats was found to result in faecal egg count reductions of 0% and 84% respectively, in infections that were predominantly composed of Ostertugia spp. The author considered that these results raised issues pertaining to the relative effectiveness of different routes of anthelmintic administration in goats and further suggested, as the animals were suffering from “water belly” at the time of treatment, that the occurrence of this syndrome may also have affected the pharmacodynamics of the anthelmintic. 相似文献
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13.
Abstract Extract Sir, — It appears that Drs Marshall et al.(1) have missed the cardinal point of our paper on an unusual serological response in calves after use of a leptospiral vaccine. (2) That point, of course, was that after use of one leptospiral vaccine, but not another, post-vaccination microscopic agglutination titres of calves were indistinguishable from post-infection titres, whatever the actual titres may have been. 相似文献
14.
Abstract Extract In New Zealand dairy cattle, the average gestation length is commonly accepted as 282 days. This is slightly longer than that reported in European and American studies of Jersey and Holstein or Friesian cattle (Anderson and Plum, 1965; O'Conner et al., 1968). A feature of these reports and previous New Zealand studies is the differing variation associated with the mean gestation lengths. Part of this may be due to sex, season, breed of sire, age of dam and unspecified herd effects, but is largely the result of excluding or including abnormal gestation periods. The criteria for determining normality have been rather arbitrary in most cases. Abnormally short and long gestation periods may result from disease or from incomplete data recording for conception dates. 相似文献
15.
R.D. Jolly B.V.Sc. Ph.D. 《New Zealand veterinary journal》2013,61(5):87-89
Abstract Extract Ovine toxoplasmosis is of importance in New Zealand where it is recognized as the most common cause of intrauterine infection leading to abortion and stillbirths (Hartley and Boyes, 1964). Although clinical disease is rare in humans, serological evidence shows a high incidence of subclinical infection with 50% of New Zealand adults over 40 years of age showing positive titres (Manning and Reid, 1956). There is, however, a paucity of information on the disease incidence in other species in this country. Hartley (1956) has recorded toxoplasmosis in dogs and fowls. Pneumonia in a pig associated with Toxoplasma gondii was described by Shortridge and Smith (1964) while, more recently, Shortridge (1968) noted two cases of feline toxoplasmosis. This present communication concerns an outbreak of acute toxoplasmosis in several piglets. 相似文献
16.
Abstract Extract Sheep ova are normally obtained from the reproductive tract using the flushing techniques described by Hunter et al. (1955). Oviduct flushes, in the writers' experience, give a higher recovery of ova than uterine flushes, but they result in more adhesions of the tract, which can cause infertility. Consequently, the development of satisfactory uterine flushing techniques appears necessary before ova can be recovered repeatedly from superior ewes. This paper describes such a technique. 相似文献
17.
Abstract Extract The authors of the scientific article entitled “Use of polymerase chain reaction for the differentiation of Group A bovine rotavirus G6, G8, and G10 genotypes in the North Island of New Zealand” (Howe et al. 2008) would like to thank Dr Moffat for his letter of correspondence, and would like to take the opportunity to address the concerns raised by him in the New Zealand Veterinary Journal 57, 68, 2009, entitled, “Re: Use of polymerase chain reaction for the differentiation of Group A bovine rotavirus G6, G8, and G10 genotypes in the North Island of New Zealand”. 相似文献
18.
R.T. Gallagher A.G. Campbell A.D. Hawkes P.T. Holland D.A. McGaveston E.A. Pansier 《New Zealand veterinary journal》2013,61(11):183-184
Abstract Extract Sir:- Recently, two potent neurotoxins named lolitrem A and lolitrem B were isolated from herbage collected from pastures on which the livestock disorder ryegrass staggers (RGS) occurred. et al.(1) We now wish to report that samples of perennial rygrass (Loliun yeretzrze L.) seed obtained from several locations in New Zealand contained potent neurotoxins which include lolitrem A and lolitrem B. Further, when pellets made from lolitrem neurotoxin-containing seed were fed to sheep, symptoms indistinguishable from those of severe, natural RGS were induced in four sheep, and mild symptoms in three sheep. 相似文献
19.
Abstract Extract Madam:— In a clinical communication to your journal in 1985, Allworth et al. (1) described four outbreaks of dermatophilosis in five-month-old lambs grazing Brassica crops in wet humid conditions. The lesions were thick crusty accumulations of inflammatory exudate at the base of the fleece closely attached to the epidermis. Histologically, there was invasion of hair follicles by Dermatophilus, extensive accumulation of inflammatory exudate in the dermis and lifting of the epidermis from the dermis in severely affected areas. 相似文献
20.
Abstract Extract Sir:– Recently, caprine arthritis-encephalitis virus (CAEV) was isolated in New Zealand.(5) The virus induced syncytial cell formation in cell culture, budded from the cytoplasmic membrane of infected cells, was 80-100 nm in diameter, and reacted with both CAEV- and maedi/visna-positive antisera. We wish to present evidence that this isolate of CAEV has other biochemical characteristics of the Retroviridae. The two biochemical techniques used were the detection of 3H uridine-Iabelled virus and the assay for viral RNA-directed DNA polymerase (RDDP). 相似文献