共查询到20条相似文献,搜索用时 31 毫秒
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.
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
3.
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
4.
S.J. King B.V.SC. B.L. Munday B.V.SC. W.J. Hartley M.R.C.V.S. 《New Zealand veterinary journal》2013,61(3)
Abstract Extract Sir,—We should like to take this opportunity to congratulate Messrs Cordes, Dodd and O'Hara (1964) on their excellent article on bovine mycotic abortion and pneumonia in New Zealand, and at the same time mention certain complementary features of these conditions as noted in Tasmania. 相似文献
5.
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
6.
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
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.
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
9.
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
10.
Joan C. Kater B.V.Sc. Edith A. Davis B.Sc. K.G. Haughey M.R.C.V.S. W.J. Hartley B.V.Sc. 《New Zealand veterinary journal》2013,61(2):32-38
Abstract Extract Published records of Escherichia coli infection in lambs have appeared with increasing frequency in recent years. Reports have come from Australia (Roberts, 1957, 1958; Charles, 1957) and from Britain (Terlecki and Shaw, 1959; Rees, 1958; Hughes, 1962). In the Australian outbreaks, the age of affected lambs ranged from three to eight weeks, while in the British outbreaks lambs became affected within one day of birth. In both countries the illness lasted from one to three days. Characteristically, the infection localized in the central nervous system leading to purulent meningo-encephahtis, and in the joints causing fibrino-purulent arthritis. 相似文献
11.
12.
J.W. McLean M.Agr.Sc. B.V.Sc. Ph.D. J.H. Claxton B.Sc. 《New Zealand veterinary journal》2013,61(5):134-136
Abstract Extract The economic importance of vaginal prolapse in ewes depends not only on the incidence, which has been shown to vary from farm to farm, district to district, year to year (Edgar, 1952; McLean, 1957), and according to topography (McLean, 1957), but also upon the outcome of the disease in losses of ewes and Iambs. It must be appreciated that, although it is becoming more common than hitherto for veterinary assistance to besought, by custom and tradition the great majority of cases are still treated by the farmer himself or his shepherd. The kind of treatment that cases thus receive and the conditions under which treatment is given can perhaps best be described as “rough and ready”. The mortality rates in ewes and lambs to be described in this paper are those associated with this kind of treatment. 相似文献
13.
M.A. Gemmell B.V.Sc. 《New Zealand veterinary journal》2013,61(2):40-41
Abstract Extract The object of this report is to record observations on the differences in incidence between Echinococcus granulosus and Taenia hydatigena in the livers of sheep of different age groups in New Zealand. The method of collection of data, examination, and classification of animals in these surveys have previously been described (Gemmell, 1961a, 1961b). 相似文献
14.
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
15.
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
16.
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
17.
18.
Abstract Extract In a previous paper, changes in the pelvic region of normal pregnant ewes were described (Bassett and Phillips, 1955). The dissection techniques developed have now been used to study characteristic changes in pelvic anatomy of a large number of ewes suffering from, or with previous histories of, vaginal prolapse (“bearing trouble”). Dissected pelves have again been observed, and some of the more informative techniques applied to live animals. In addition to these quantitative methods, preliminary investigations have been initiated using a deep-freeze technique to study pelvic anatomy in greater detail. 相似文献
19.
R. Ann Dean B.Sc.Hons. G.W. Burgess B.V.Sc. Ph.D. Q.D.A.H. 《New Zealand veterinary journal》2013,61(9):198-200
Abstract Extract Infectious bovine rhinotracheitis (IBR) virus has been associated with respiratory infection (Webster and Manktelow, 1959) and genital infections (Manktelow and Hansen, 1961) in New Zealand. The possible role of IBR virus in abortion has been reviewed by Durham (1974). 相似文献
20.
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