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1.
P.B. Kuppuswamy 《New Zealand veterinary journal》2013,61(4):110-118
Abstract Extract Recognition that one infective agent could cause ram epididymitis and ewe abortion in New Zealand was due to McFarlane et al. (1952). The organism was not identified at that time, but Buddie and Boyes (1953) classified it in the genus Brucella—possibly a variant of Br. melitensis. This finding provided a basis for research on control and treatment of the disease. The present paper describes studies on one aspect of this problem, the chemotherapy of affected rams. 相似文献
2.
D.R. Ris B.Sc. Dip.Agric. W.A. Te Punga B.Sc. B.V.Sc. Dip.Bact. 《New Zealand veterinary journal》2013,61(4):94-97
Abstract Extract Surveys on perinatal infection in lambs in New Zealand have been reported and the pathology and bacteriology of the conditions described (Hartley and Boyes, 1955, 1964; McFarlane, 1955; Hartley and Kater, 1964). Potentially pathogenic organisms were isolated from 58 to 288 lambs from five flocks, Clostridium septicum being isolated from five of these cases (Hartley and Boyes, 1955). In another survey, 5.5% of lambs born dead or dying up to 4 weeks of age died from navel infection. Clostridium septicum was isolated from 69% of 48 consecutive cases (Hartley and Boyes, 1964). McFarlane (1955) recorded that 7.3% of perinatal mortality was due to navel infection but no bacteriology was carried out nor was the organism suspected stated. On individual farms, up to 15% of lambs recorded died from navel ill. It should be pointed out that, in this survey, only small numbers of lambs were received from some properties. 相似文献
3.
W.A. Te Punga B.Sc. B.V.Sc. W.H. Bishop M.R.C.V.S. 《New Zealand veterinary journal》2013,61(6):143-149
Abstract Extract A gram-negative pleomorphic facultative aerobic organism, indistinguishable morphologically and culturally from that isolated from suppurative epididymitis in rams and described by Dodd &; Hartley (1955), has, over the last five years, been isolated at this laboratory on more than ten occasions from polytenosynovitis and pyaemia in lambs, and on one occasion from mastitis in a ewe. It still remains to characterize and classify this organism, but Roberts has made a detailed comparison of it with his Histophilus ovis (Roberts, 1956) and considers that the two are indistinguishable (Roberts, 1958, pers. comm.). 相似文献
4.
Abstract Extract Sir, — Correspondence in your journal has indicated that there is some divergence of opinion about the efficacy of the complement fixation (CF) test for the diagnosis of ovine brucellosis (Brucella ovis) (1) (2) (3) (4) . A number of letters which have recently been received at the Animal Health Reference Laboratory indicate that this issue is not yet fully resolved. We believe that part of the difficulty is due to misunderstanding about the use and interpretation of the test, and we would therefore like to comment. 相似文献
5.
Abstract Extract Disease surveillance systems can take many forms, depending upon what is desired of them. Surveys of mortality can be useful as an integral part of any surveillance system, both as a record of the losses and as an indication as to which conditions may be responsible for lowering the thrift of the population. Both these sources of loss are important in reducing the monetary return from a stock population as a whole. Surveys of mortality can indicate the importance of low incidence diseases and can be used to identify conditions previously unknown in the area. Totally new diseases can also be detected in this manner. Many individual disease conditions as well as surveys of groups of diseases (Hartley and Kater, 1962; O'Hara and Shortridge, 1966; Shortridge and Cordes, 1971) have been reported from material submitted to New Zealand laboratories and mortality studies on groups of animals have been undertaken elsewhere (Everitt and Evans, 1970; Jackson et al., 1972). 相似文献
6.
J.L. McGregor M.R.C.V.S. A.A. Twaddle B.V.Sc D.G. Bennell B.V.Sc 《New Zealand veterinary journal》2013,61(3)
Abstract Extract Sir,—In his clinical communication on reposition of the prolapsed uterus in the cow, Irvine (1964) stated that he “believes that the intestine is contained in all but the smallest prolapses“. 相似文献
7.
Abstract Extract Drake et al. (1960) have shown that selenium will control outbreaks of lamb and hogget ill-thrift on the pumice soils of the Rotorua-Taupo area. As an ill-thrift problem also exists in calves on the newly-broken-in farms in the same area, it was decided to investigate the effect of oral selenium and other minerals in the control of this problem. 相似文献
8.
J. Mullins 《New Zealand veterinary journal》2013,61(4)
Abstract Extract Robins and Shapcott (1954) recorded cases of presumed acorn poisoning in sheep. 相似文献
9.
M.B. Buddle B.V.Sc. D.Sc. F.K. Calverley B.Sc. Betty W. Boyes B.Sc. 《New Zealand veterinary journal》2013,61(4):90-93
Abstract Extract An infectious epididymitis of rams caused by Brucella ovis (Buddie, 1956) infection, first described in Australia (Simmons and Boyes, 1953) and New Zealand (Buddie and Boyes, 1953) was recognized subsequently in Czechoslovakia (Gdovin et al, 1955), the United States (McGowan and Shultz, 1956), South Africa (Van Rensburg et al, 1958), Rumania (Tudoriu, et al, 1958), and South America (Dr Justo Zomara B, 1961, pers. comm.). As the infection can affect ram fertility and, further, can be responsible for abortion in ewes and perinatal mortality in lambs, attention has been directed to the development, evaluation, and application of control measures in a number of important sheep-raising countries. 相似文献
10.
Abstract Extract Increasing references have been made in the recent veterinary literature to malacic diseases of the nervous system in sheep and other animals. Plowright (1954) and Innes and Plowright (1955) have described a focal symmetrical spinal poliomalacia of unknown aetiology in sheep in Kenya. In the U.S.A., Cordy (1954) has described a focal symmetrical encephalomalacia of horses following the ingestion of a species of thistle, and Jensen et al. (1956) have described an idiopathic polio-encephalomalacia in cattle and sheep. In New Zealand, Hartley (1956) has described a focal symmetrical encephalomalacia (F.S.E.) of lambs that may be related to the sublethal effects of the toxin of Clostridium perfringens (welchii) Type D. Smith (1957) has described widespread lesions of polio-encephalomalacia together with eosinophilic meningoencephalitis in sodium chloride poisoning of swine. 相似文献
11.
R.V. Brunsdon M.Sc. Ph.D. 《New Zealand veterinary journal》2013,61(6):144-148
Abstract Extract Much work has been, carried out in New Zealand to ascertain the response in young sheep to drenching with anthelmintics (for review see Whitten, 1954). Clarke &; Filmer (1958) have also examined response to drenching in their studies on hogget' ill-thrift. As Whitten (1954) has shown, results of past drenching trials have been extremely variable. In some cases little or no response has been observed, in others considerable increases; in weight gains have been achieved. More recently, Robertson (1963) has summarized the results of part of an extensive series of country-wide post-weaning drenching trials conducted by the Department of Agriculture with the new anthelmintic thiabendazole. In those trials consistent, weight gain responses were recorded in favour of the drenched animals. However, most of the published data are from trials involving strategic drenching programmes designed to control or limit infestation rather than to suppress completely, patent infestation. Most of these trials have been confined to late summer, autumn and winter, and few have attempted to cover the entire first year of young sheep. Furthermore, little attempt has hitherto been made to correlate responses obtained with the changing degree and species composition of infestation throughout the course of the trial. 相似文献
12.
W.A. Te Punga B.Sc. B.V.Sc. 《New Zealand veterinary journal》2013,61(6):153-155
Abstract Extract Dye-test reactivity in sheep serum can result from either of two different types of anti-body, distinguishable by their stability to heat (Te Punga and Penrose, 1964). Heat-labile antibody was found in sheep that showed low (less than 1: 16) non-fluctuating titres in their sera from several successive bleedings, and heat-stable antibody in sheep with high (more than 1: 256) titres in their sera. It was suggested that high titres were probably induced by infection with Toxoplasma gondii but no explanation of the heat-labile antibodies was attempted. It was therefore of interest to determine whether inoculation of sheep with Toxoplasma gondii resulted in the formation of two different populations of antibody molecules distinguishable on the basis of their stability to heat. 相似文献
13.
W.J. Hartley M.R.C.V.S. 《New Zealand veterinary journal》2013,61(8):106-117
Abstract Extract Infection by the protozoan parasite Toxoplasma gondii is widespread in sheep in New Zealand and is recognized as the most common cause of intra-uterine infection leading to abortion and stillbirths (Hartley et al., 1954; Hartley and Boyes, 1964). In view of the prevalence of this infection in New Zealand, trials were set up to investigate some aspects of the epidemiology of this perplexing disease. 相似文献
14.
R.V. Brunsdon M.Sc. Ph.D. 《New Zealand veterinary journal》2013,61(6):135-139
Abstract Extract Despite the importance of the beef and dairy industries in this country, little attention has been given to parasitic gastroenteritis as an animal health problem in cattle, although McMeekan (1954) has stated that helminths are most commonly associated with severe unthriftiness and losses in dairy calves after weaning. Apart from a recent report of a drenching trial in cattle (Cairns and Gallagher, 1964), there is a complete lack of published information on either the importance and prevalence of the disease in New Zealand, or on the host-parasite relationships concerned in the epidemiology of the disease. Similarly the literature is devoid of data relating to the incidence and distribution of the various parasite species. 相似文献
15.
A.N. Bruere D.M. West N.J. Maclachlan J.D. Edwards H.M. Chapman 《New Zealand veterinary journal》2013,61(7):191-193
Abstract Extract An acute epididymitis affecting mainly young rams and associated with a gram-negative pleomorphic organism was first reported in New Zealand in 1955 (1). Subsequently a similar syndrome attributed to Actinobacillus seminis has been reported in Border Leicester and other rams in Australia (2) (3) (4). A like condition also described in Australia in a single crossbred ram was causally attributed to Histophilus ovis (5). Actinobacillus seminis was isolated from an epididymal infection in a Rambouillet ram in America (6) and from a Dorper ram in South Africa(7). 相似文献
16.
Abstract Extract Dermatophilus congolensis is recognized as the cause of “cutaneous streptothricosis” in cattle — an exudative dermatitis resulting from infection of the superficial layers of the epidermis (as deep as the stratum granulosum). Acute fulminating infections resulting in death are seen, as also are fatal complications such as necrotic or gangrenous dermatitis resulting from secondary bacterial infection (Jubb and Kennedy, 1970). A range of inflammatory proliferative lesions of the tongue have been reported also from cases of streptothricosis (Mornet and Thiery, 1955). With the exception of granulomatous lesions of the posterior oral cavity in cats (O'Hara and Cordes, 1963; Baker etal., 1972) infections of other sites with D. congolensis do not appear to have been reported. 相似文献
17.
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
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19.
R.D. Jolly B.V.Sc. Ph.D. M.A.C.V.Sc. J.G. Digby B.V.Sc. M.B.A. C.G. Rammell B.Sc. 《New Zealand veterinary journal》2013,61(11):218-222
Abstract Extract Recent research has shown that the gene frequency for mannosidosis (pseudolipidosis) may approximate 0.05 in pedigree Angus herds (Jolly, unpublished data). As epidemiological studies suggest an equal frequency in commercial non-pedigree herds, the disease is elf economic importance to the national beef industry. Mannosidosis is an inherited lysosomal storage disease associated with a defect in catabolism, of the heterosaccharide fractioln of glycoproteins (Whittem and Walker, 1957; Jolly 1971; Hocking et al., 1972; Phillips et al., 1974). Whereas animals with mannosidosis have negligible tissue sand plasma levels of α-mannosidase, heterozygotes having one normal gene and one defective gene have approximately half the normal level of enzyme in their tissues and plasma. This observation forms the basis for a control programme in which heterozygotes are identified by their plasma α-mannosidase 1evels (Jolly et al., 1973, 1974a, b). 相似文献