the bionomics of the free-living larvae and the transmission of dictyocaulus filaria between lambs in north-east england.the bionomics of the free-living larvae of dictyocaulus filaria on pasture, and the transmission of infection between lambs, were studied during different seasons of the year in north-east england. the rate of development of first-stage larvae to the third stage took 4-9 days in late spring and summer, 1 1/2-4 weeks in autumn and 5 1/2-7 weeks in winter. the proportion of first-stage larvae developing to the third stage ranged from 10-28% in autumn and winter, and 2-25% in spring and summer. the ...1976135016
the epidemiology of dictyocaulus filaria in north east england.the seasonal pattern of dictyocaulus filaria infection in four flocks of sheep under field conditions was studied by faecal examination for larvae. the prevalence of infection in lambs was low in spring and summer but increased in late autumn or winter, then fell again to a low level by may. however, most lambs became infected at some time during their first year of life. in ewes the prevalence of infection was generally low, but rose during winter and spring. seasonal pattern and intensity of i ...1977140454
foot-and-mouth disease in british deer: transmission of virus to cattle, sheep and deer.after exposure for two hours to cattle with foot-and-mouth disease, each of the five species of deer found in the british countryside became infected. clinical disease was typical and severe in the roe and muntjac deer, with some animals dying, less severe in the sika deer and usually subclinical in the fallow and red deer. each species transmitted disease to its own species and to cattle and sheep. the amounts of virus present in the blood, and in oesophageal/pharyngeal samples and excreted as ...1975167503
infection of british deer and farm animals with epizootic haemorrhagic disease of deer virus. 1977198436
serological studies of mucosal disease virus in england and wales.a survey of the cattle population in england and wales showed that about 62 per cent of animals had neutralising (sn) antibody to bvd-md virus in their serum. fewer seropositive individuals were detected by immunodiffusion (53 per cent), and complement fixation (cf) tests (34 per cent). the prevalence of antibody was not affected by herd size, but some variation was found between various regions of the country, and the proportion of animals seropositive rose markedly with age. the immunodiffusio ...1978203990
the distribution of antibodies to border disease virus among sheep in england and wales.within a sample of the sheep population of england and wales, 10.8 per cent of 3506 individuals had immunodiffusion test antibody to bovine viral diarrhoea mucosal disease virus antigen. there were marked differences between various geographical regions in the proportion of sheep with antibody, and border disease may be more common in some areas than disease records indicate.1978214835
field observations on the epidemiology of abomasal parasites in young sheep during winter and spring.a flock of spring born lambs was continuously exposed to natural parasite infection from birth until selected for slaughter in groups of two or three, at monthly intervals throughout winter and spring for abomasal worm counts. meteorological data were recorded and regular estimates of infective pasture larval availability were made. parasite population changes and inhibition patterns for ostertagia spp, haemonchus contortus and trichostrongylus axei were recorded. ostertagia spp were found to su ...1979262603
incidence of salmonella infection in animals in england and wales 1968--1974.of a total of 23,609 incidents of salmonella infection reported during the period 1968--74, 20,326 occurred in cattle, 1744 in poultry and other birds, 675 in sheep, 558 in pigs and 306 in other species of animals. despite the large number of serotypes isolated (153), 88% of incidents were due to only two stereotypes: s. dublin (15,929 incidents of which 15,446 occurred in cattle ) and s. typhimurium (4842 incidents of which 3785 occurred in cattle and 732 in birds). s. choleraesuis was the thir ...1977319168
the prevalence of sarcocystis spp in dogs and red foxes.protozoan parasites of the genus sarcocystis have been recognised for many years as intramuscular cysts of numerous vertebrates. it is only comparatively recently that the two-host nature of the life cycle has been recognised and that the intramuscular cysts are a stage in the developmental cycle of coccidian parasites of flesh eating mammals (fayer 1974, fayer and johnson 1973, 1974, rommel and others 1972, dubey 1976). carnivores ingest the intramuscular cysts from herbivores and presumably fr ...1978416553
the biological selenium status of livestock in britain as indicated by sheep erythrocyte glutathione peroxidase activity.the reliability of erythrocyte glutathione peroxidase activity as an indicator of selenium status in livestock is discussed. based on this measurement, a survey is described of the biological selenium status of sheep on each of 329 farms in britain. results showed that 47 per cent of these farms were probably unable to provide grazing livestock with sufficient selenium to maintain blood levels greater than 0.075 microgram per ml. increased selenium deficiency from the increasing use of home grow ...1979473499
the treatment of acute accidental hypothermia: proceedings of a symposium held at the raf institute of aviation medicine.a symposium was held at the raf institute of aviation medicine, farnborough, hampshire, on feb. 28, 1978. the purpose of the meeting was to distill up-to-date expert opinion to provide advice for those faced with the treatment of victims of exposure or cold water immersion. in particular, it was intended to recommend practical measures which could be employed in the field. however, it soon became apparent that there are large gaps in our knowledge of the physiology of hypothermia. these made the ...1979496754
salmonella gona infection in sheep.a field outbreak of salmonellosis due to salmonella agona in sheep and some subsequent experimental work is described. while the field outbreak in pregnant ewes and neonatal lambs caused severe losses the experimental disease in non-pregnant sheep was mild and transient. s agona was not isolated from the carcases of the experimental sheep killed after 28 days post infection but it persisted for 69 days in the faeces of one ewe which was kept alive for three months. media comparisons indicated th ...1978654045
sheep tumours in north east yorkshire. i. prevalence on seven moorland farms. 1978698772
a critical analysis of condemnation data for cattle, pigs and sheep 1969 to 1975. 1978698775
influence of environmental factors excluding ultra violet radiation on the incidence of skin cancer.cancers of the skin are not properly registered and our lack of precise knowledge of the influence of environmental factors is due both to a failure to report and a failure to attribute because many tumours are not recognised as due to environmental factors and escape notification due to lack of knowledge and teaching. the long latent period also interferes. the commonest cancer is squamous cell carcinoma followed by basal cell carcinoma. melanoma is exceedingly rarely environmental. the main ca ...1978719179
forecasting the incidence of parasitic gastroenteritis in lambs in england and empirical method for forecasting the incidence of parasitic gastroenteritis in sheep in england and wales is described. the level of disease in lambs in late summer depends on the date soil moisture returns to field capacity (the autumn return date) in the previous year together with rainfall from may to july in the current year. the importance of a late autumn return date and winter weather in relation to disease in stock at other times of the year is also discussed.1978741604
forecasting the peak of gastrointestinal nematode infection in lambs.the pattern of sheep nematode infective larvae on pasture shows a marked midsummer peak arising largely from the ewe peri-parturient egg output. records of larval pattern over a nine-year period were examined in relation to meteorological data, and a correlation was demonstrated between the time of the summer peak and cumulative rainfall. a "wet score" was allocated to 12-hourly rainfall figures, and a "critical index" of 440 units of wetness was shown to be necessary before the larval peak was ...1978741605
host-pathogen interactions in scrapie.there are many strains of the agent which causes scrapie and these can be used singly or given as mixed infections to investigate the ways in which agent and host control mechanisms interact during the pathogenesis of the disease. two genes in mice are described; one only affects the kinetics of the disease when extraneural injections are used, the other acts irrespective of the route of injection and it is suggested that it determines the structure of a multimeric agent-replication site, the nu ...1975807505
determination of calcium, potassium, chlorine, sulphure, and phosphorus in meat and meat products by x-ray fluorescence spectroscopy. 1976968984
seasonal changes in the plasma retinol-binding holoprotein concentration of sheep.1. seasonal variations in plasma retinol-binding holoprotein concentration have been found in two groups of entire ewes and in a control group of wethers (castrated rams). 2. in each group retinol-binding holoprotein level was minimal in summer and increased to peak values in september just before the autumn breeding season.1976985696
composition of ewe's milk. 1976986407
trends in salmonella food poisoning in england and wales 1941-72.cattle and pig herds and flocks of domestic fowl have formed the main reservoir of human salmonella food poisoning in england and wales from 1941 to 1972. changes in the incidence of human salmonella food poisoning and in the serotypes of salmonellas isolated from human infections are shown to have been associated with the introduction of new foods, with changes in animal husbandry, and with changes in the relative proportions of flesh food from different species consumed. new foods, dried powde ...19751054731
the occurrence of eimeria weybridgensis and other species of coccidia in lambs in england and wales. 19751148806
letter: an anthrax outbreak. 19751198877
liver fluke in great britain: a survey of affected livers.over a period of 15 months data were collected from abattoirs in great britain on 213,082 cattle and 362,838 sheep livers to determine the distribution and prevalence of damage by fasciola hepatica. the stock came from 8239 farms, and from livestock markets in 81 counties. 53 per cent of the farms had sent affected stock, with significant percentages in eastern as well as the western counties of england and scotland. 21 per cent of all cattle and 7 per cent of all sheep livers examined were affe ...19751202744
blowfly species composition in sheep myiasis in britain. 19921421492
parasitic otitis in sheep associated with psoroptes infestation: a clinical and epidemiological study.parasitic otitis associated with psoroptes infestation was diagnosed in a small pedigree flock of sheep with aural haematomas, abscessation and cauliflower ears. thirteen of the 15 lambs were affected but the clinical signs were mild; small, discrete, crusty lesions on the inner aspect of the ear at the junction of its anterior and posterior borders were typical. nine of the 20 adults were affected but the lesions were more severe. eighteen of the 64 members of the breed society who responded to ...19921441096
some aspects of the epidemiology and control of salmonella typhimurium infection in outwintered suckler cows.two outbreaks of salmonella typhimurium infections affected outwintered, spring-calving suckler cows in late pregnancy. the infections spread rapidly both within and between groups of stock on the affected farms, with morbidity in the infected groups varying from 14.5 per cent to over 60 per cent, and mortality in adult cattle varying from 0 to 14.3 per cent. prophylactic measures included the use of antibiotics and killed vaccines against escherichia coli, salmonella dublin, s typhimurium, and ...19921475896
benzimidazole-resistant cooperia curticei from cornwall, england. 19921566544
[spongiform encephalopathies with special reference to bovine spongiform encephalopathy].in switzerland bovine spongiform encephalopathy (bse) was detected for the first time in november 1990. it is a transmissible disease of the central nervous system similar to creutzfeldt-jakob disease (cjd), gerstmann-sträussler-scheinker syndrome (gss) and kuru in man, and, in animals, scrapie in sheep and goats, chronic wasting disease (cwd) in captive mule deer and elk of north america and transmissible mink encephalopathy (tme) of farm reared mink. the infectious agent of the spongiform ence ...19921615298
the radioecological consequences for lowland pastures used to fatten upland sheep contaminated with radiocaesium.current farming practice in upland areas of cumbria, england, affected by chernobyl fallout is to remove lambs to lowland pastures for fattening prior to slaughter. the radiocaesium (137cs and 134cs) burden of lambs is rapidly lost via excreta deposited on the pasture. this may increase the radiocaesium activities in vegetation of these pastures. studies were performed to assess the radioecological consequences of this practice. results obtained from experiments were used to calibrate a soil/veg ...19911857960
the occurrence of listeria species in milk and dairy products: a national survey in england and wales.a total of 4172 samples of milk, cheese and other dairy products were examined over a 1-year period for the presence of listeria species. strains of listeria were found most frequently in soft, ripened cows milk cheese; 63 out of 769 (8.2%) samples contained listeria monocytogenes, 25 samples contained species other than l. monocytogenes, and 18 samples contained both l. monocytogenes and other listeria spp. eleven samples of pasteurized cows milk (1.1%) from four dairies contained l. monocytoge ...19911904761
a case of eimeria gilruthi infection in a sheep in northern england. 19911949527
poisoning of sheep by goat's rue. 19911957472
a field investigation of subclinical mastitis in sheep in southern england.the prevalence, aetiology and epidemiological features of subclinical mastitis were investigated in 358 lowland ewes in seven flocks in southern england. milk samples (2092) were collected at 3-weekly intervals; those which were both bacteriologically and whiteside test positive were deemed to have originated from glands with subclinical mastitis. the period prevalence of subclinical mastitis was 11.7% and the prevalence remained relatively constant over the course of lactation (5.5-7.0%). the p ...19911959012
benzimidazole resistant nematodes in sheep in southern england. 19912017851
species composition and larval habitats of blowfly (calliphoridae) populations in upland areas in england and wales.1. bait trapping at upland sites in england and wales, mainly at 400-700 m altitude, showed that calliphora vomitoria l. usually outnumbered all other blowflies. c.vicina r.-d., c.loewi end. and c.alpina zett were usually present in much lower numbers, with the last-named occurring at north pennine sites, but being replaced by c.subalpina ringd. at a south pennine (peak district) and a welsh site. catches normally included cynomya mortuorum l., and phormia terraenovae r.-d. was present at about ...19902132970
plasmid profile typing can be used to subdivide phage-type 49 of salmonella typhimurium in outbreak investigations.plasmid profile typing has been used to subdivide phage-type 49 of salmonella typhimurium, the most common phage type in humans in england and wales since 1985. twenty profile patterns have been identified in 350 strains examined. four profile patterns have been identified in 143 isolates from patients infected in 33 epidemiologically unrelated incidents and two patterns have predominated, st49:62 and st49:62, 1. these patterns were also common amongst s. typhimurium phage-type 49 isolated from ...19902182328
concurrent maedi-visna virus infection and pulmonary adenomatosis in a commercial breeding flock in east anglia.the seroprevalence of maedi-visna virus infection in thin potential cull ewes aged over two years in a flock in east anglia increased from 3.7 per cent in august 1985 to 39.0 per cent in september 1987 and 93.3 per cent in may 1989. this increase coincided with the first appearance of sheep pulmonary adenomatosis in the flock. four emaciated ewes which were dyspnoeic were necropsied between 1987 and 1989. maedi and pulmonary adenomatosis were confirmed histologically in one of these ewes and pul ...19902238421
a questionnaire survey of the prevalence of scrapie in sheep in anonymous, self-administered questionnaire has been used in two independent surveys to try to determine the prevalence of scrapie in the national sheep flock. the disease was recorded in 35 counties in england and wales. about a third (26.5 and 37.3 percent) of respondents owning 100 or more sheep indicated that they had seen sheep with scrapie in their flocks. the incidences of clinical cases recorded in affected flocks in the two surveys were 0.5 and 1.1 cases/100 ewes/year. at present ther ...19902260251
transport and lairage times of lambs slaughtered commercially in the south of england.the times spent in transport and lairage by 124,036 lambs slaughtered in two plants in the south of england were recorded. about half of them travelled for up to 120 km, taking up to four hours, and three-quarters travelled not more than 300 km, the journeys taking up to about six hours. bimodal frequency distributions of lairage time were apparent; overall one third of the lambs spent up to four hours in lairage but more than 40 per cent were kept for longer than 14 hours, while they were held ...19902385918
the epidemiology of echinococcus granulosus in great britain. v. the status of subspecies of echinococcus granulosus in great britain.twenty-five years ago williams and sweatman suggested that in great britain there are two subspecies of echinococcus granulosus--e. granulosus granulosus and e. granulosus equinus. echinococcus granulosus granulosus does not mature either in foxes or in horses: e. granulosus equinus will mature in either. the prepatent period of e. granulosus granulosus in the definitive host is about 42 days while that of e. granulosus equinus is about 70 days. each subspecies has a characteristic morphology. m ...19892596902
occurrence of 14 cases of bovine spongiform encephalopathy in a closed dairy herd.fourteen cases of bovine spongiform encephalopathy (bse) were diagnosed on the basis of clinical examination in a closed herd of british friesian cows during a 9-month period from october 1987 until june 1988. the diagnosis was confirmed on histopathological examination of brain tissue from five of the six samples submitted. the main presenting clinical signs were of altered behaviour: apprehension, anxiety and hyperaesthesia. one cow was euthanized after a short period of recumbency; the remain ...19892713640
an assessment of the risks to the health of grazing animals from the radioactive contamination of a result of the chernobyl accident sheep and cattle in wales, cumbria and scotland became contaminated with radionuclides of caesium and iodine. in the worst case, the maximum levels of contamination were of the order of 4000 bq/kg of caesium-137 and 2000 bq/kg of caesium-134 in muscle and 2,000,000 bq/kg of iodine-131 in the thyroid gland. calculations show that the radiation dose rates to the animals from these burdens of the radionuclides of caesium would have been approximately one thousa ...19892736377
chernobyl radiocaesium in an upland sheep farm ecosystem.following the deposition of radiocaesium from the chernobyl accident the movement and slaughter of sheep in upland areas of west cumbria, scotland and wales was restricted. studies on the radioecology of cs-137 and cs-134 have been conducted at a farm within the affected area of west cumbria since july 1986. the radiocaesium activity of upland sheep was found to decline when they were brought on to the farms' enclosed pastures and rise when they were returned to the open fell, where the radiocae ...19892736378
occurrence and properties of fy(att25)+ escherichia coli associated with diarrhoea in calves.escherichia coli producing the adhesive antigen fy(att25) were isolated from 46 of 1341 (3.4 per cent) e coli isolated from calves on 20 of 164 (12.1 per cent) farms in scotland and england. twenty of the 46 calves had diarrhoea and in nine of these animals there were mixed infections with rotavirus, coronavirus, cryptosporidium and salmonella typhimurium. the f41 fimbrial adhesin was found on one of the fy(att25)+ e coli. this strain also produced heat stable enterotoxin. the remaining fy(att25 ...19872889286
maedi-visna virus infection in commercial flocks of sheep in east anglia. 19873033873
chlamydial antibodies in farmers in north-west england.because of recent reports of abortion in farmers' wives following infection with ovine strains of chlamydia psittaci during pregnancy, the distribution of chlamydial antibodies was studied in rural populations in north-west england, where endemic chlamydial infection with abortion is common in sheep. immunoperoxidase assays with c. trachomatis and ovine c. psittaci showed no significant differences in either the frequency or titres of antibodies between sheep farmers and other types of farmer or ...19883053222
breeding controls rein in scrapie in yorkshire. 19883176270
field observations on the control of ovine parasitic gastroenteritis in south-east england.three worm control strategies, on a commercial farm in south east england, were monitored parasitologically for a grazing season. three peaks of larval infection in june, late august and late october/early november occurred on paddocks grazed by dosed ewes and lambs on a new ley (preventive strategy). lambs dosed and moved on to a hay aftermath in july (evasive strategy), had a mean egg count of 2090 by late august, attributable to infection with haemonchus contortus. three weekly drenching of l ...19883188346
diseases of winter housed sheep. 19883206810
q fever. 19883212909
q fever in the united kingdom and britain, q fever in man was first reported in 1949. two years later a serological survey of cattle revealed a prevalence of infection of 2.1%. in the 1970's prevalences of 4.5% and 3.1% were encountered respectively in cows that had aborted or calved normally in central england. in sheep, antibodies to c. burnetii have been detected in approximately 2.8% of sera examined for diagnostic purposes and 0.6% of sheep awaiting export. since 1975 fewer than 10 incidents of c. burnetii associated dis ...19873324568
observations on the pattern of nematode larval availability on pastures grazed by sheep in surrey. 19883363815
131i in the thyroid glands of sheep from wales and south-west england after the chernobyl accident.radioactive material from the chernobyl reactor was deposited over the united kingdom between may 2 and may 4, 1986. in this report, the 131i content of ovine thyroid glands, collected from seven abattoirs in wales and south-west england is used to monitor the geographical distribution of the contamination. the results indicate that there was considerable local variation in the degree of contamination and suggest that, in addition to the major areas of contamination, deposition of high levels of ...19883394247
a census of the prevalence of vaginal prolapse in sheep flocks in the borders region of scotland.a postal census of vaginal prolapse in sheep flocks in the borders region of scotland yielded 540 replies from 963 owners (56 per cent). there were 262,250 ewes in 976 flocks and 2573 vaginal prolapses were reported. analysis of the data revealed that 390 (40 per cent) of the flocks had no vaginal prolapses and in 237 (24.3 per cent) the reported prevalence was between 0.1 per cent and 1.0 per cent. only 63 (6.5 per cent) of flocks had a greater than 5 per cent prevalence of vaginal prolapses. t ...19873617413
prevalence of chlamydia, toxoplasma, toxocara and ringworm in farm cats in south-west england.the prevalence of infection with chlamydia psittaci, toxoplasma gondii, toxocara cati and microsporum canis was examined in 51 cats on 22 sheep farms in the bristol area. serum antibody to c psittaci and t gondii was present in 45 per cent and 47 per cent of cats, respectively. at the time of sampling c psittaci was isolated from 6 per cent of the cats, t cati was identified in 63 per cent of faecal samples but neither t gondii nor m canis was isolated. when examined according to the farm of ori ...19873672827
group l beta-haemolytic streptococcal infection in meat handlers: another streptococcal zoonosis?group l, beta-haemolytic streptococci can cause infection in dogs, pigs, cattle and sheep but there have been very few reports in man. in studies of skin infection in meat handlers we cultured group l streptococci from clinically infected wounds, impetigo and paronychia of 15 patients involved in the slaughter and processing of chickens and pigs. staphylococcus aureus was also present in eight (53%) of the lesions. at least five other infections with group l streptococci in meat and animal handl ...19873678390
coccidia of the domestic goat capra hircus, with notes on eimeria ovinoidalis and e. bakuensis (syn. e. ovina) from the sheep ovis aries.eimerian oocysts were found in 98% of 422 faeces samples from goats in se england. it was found that 74% of the samples contained thousands or tens of thousands of oocysts/g. kids less than 1 year old had higher oocyst counts than yearling or adult goats. nine species of eimeria were identified, and 65% of the samples contained 3-5 species. the most prevalent species were e. arloingi (94%), e. hirci (69%), e. christenseni (64%) and e. caprina (55%). e. ninakohlyakimovae (48%), e. alijevi (42%) a ...19863714300
less pasteurellosis in sheep. 19863716159
border disease in a flock of sheep: epidemiologic, laboratory, and clinical findings.a flock of sheep in which border disease (bd) was enzootic was studied through a breeding season. at the beginning of the study (august 1981), 125 (82%) of 152 ewes were seropositive to the cross-reacting bovine viral diarrhea virus. within 7 months, 3 (18%) of 17 seropositive ewes retested had reverted to seronegative. of the remaining 21 ewes identified as seronegative, 7 (33%) converted to seropositive by the end of the study. triplet lambs were born, 2 of which exhibited clinical signs of bd ...19863733503
religious slaughter. 19863750794
duration of tick activity. 19853992858
serogroups of bacteroides nodosus isolated from ovine footrot in britain. 19853992861
taenia hydatigena: a cause of persistent liver condemnations in lambs.a problem of high levels of liver condemnations which had affected bought-in lambs fattened on a north yorkshire farm for several years was investigated. because the farmer spread pig slurry on the land, migrating ascaris suum larvae were initially suspected as a cause but the investigation eliminated this possibility. migrating taenia hydatigena larvae were found in tissue sections and isolated from livers. a combination of parasitological and serological evidence using oncospheral antigen in a ...19854002589
sheep histocompatibility antigens: a population level comparison between lymphocyte antigens previously defined in france, england and scotland, and sheep red cell groups.a comparison test was performed to look for correlations between the three nomenclature systems for sheep histocompatibility antigens which have been previously described in france, england and scotland. 187 french sheep from a wide variety of breeds were typed for lymphocyte antigens with antisera which detect the ola, p and ed series of antigens; they were also tested against 387 uncharacterized french antisera. six clusters of sera were found which showed correspondence between antigens of at ...19854003855
is salmonellosis still a serious problem in veterinary practice?salmonella infections of food animals are of concern to both the food industry and to the public health authorities. salmonellosis is one of the major zoonotic diseases and its impact on veterinary practice may be judged by a number of criteria. some of these are examined to determine the extent of the problem.19854013036
an epidemiological study of salmonella montevideo by biotyping.among 622 cultures of salmonella montevideo, 27 biotypes belonging to two biogroups were recognized. one biogroup (10di) was predominant in all animals in scotland but only in sheep in england and wales. the other (biogroup 2d) was responsible for almost all human, cattle and poultry infection in england and wales, but only 24% of human infection in scotland.19854020111
[prevention of rh immunization by anti-d globulin injection after birth and abortion]. 19724118291
animal sources of common serotypes of escherichia coli in the food of hospital patients. possible significance in urinary-tract infections. 19704193686
an outbreak of infection due to staphylococcus aureus phage type 80/81 in a veterinary school. 19664223580
the incidence of lungworm infection in sheep in north-east england. 19704248595
a survey of sheep sera for antibodies to an ovine strain of parainfluenza 3 virus. 19694309313
multiplication of the virus of epizootic haemorrhagic disease of deer in culicoides species (diptera, ceratopogonidae). 19734353799
the hampshire epidemic of foot-and-mouth disease, analysis was made of the spread of foot-and-mouth disease during the epidemic in hampshire in january and february 1967. to explain the pattern of spread, it had to be postulated that virus was present seven days before the first outbreak was reported. it is suggested that the disease occurred initially in pigs fed on infected meat and that the virus was subsequently disseminated from the local abattoir, where the pigs were killed, to four farms by movement of animals, slaughterhouse waste, p ...19734511946
bracken retinopathy in sheep. 19724515549
the veterinarian and intensive livestock production: humane considerations. 19724562986
[christo beyers--his contemporaries and writings]. 19744594450
a survey of drug resistance in salmonella isolated from animals in england and wales during 1971. 19744601304
buildings and sheep. 19724647699
world-wide occurrence of the suspected mycotoxin producing fungus drechslera biseptata with grass seed. 19724675263
progressive retinal degeneration (bright blindness) in sheep: a review. 19724675711
hepatic ascariasis in lambs. 19734721081
darwin and domestication. 19684882915
breeding cattle for the tropics. 19704913913
bovine salmonellosis in england and wales. 19714931663
sheep, minks, savages and presenile dementia. the story of slow viruses. 19684989732
epidemiological studies on gastro-intestinal nematode parasites of sheep. infection patterns on clean and summer-contaminated pasture. 19725017825
some observations on the epidemiology of fascioliasis in relation to the timing of molluscicide applications in the control of the disease. 19715102169
the demise of a research centre. 19715103375
rheumatoid serum factor in populations in the u.k. i. lung disease and rheumatoid serum factor. 19715104047
changes in the level of money expenditure and real investment by farmers in veterinary services and medicines between 1954-55 and 1969-70. 19715167681
salmonellas of subgenus 3 (arizona) isolated from abattoirs in england and wales. 19665223430
studies on the 1967-8 foot-and-mouth disease epidemic. the relation of weather to the spread of analysis of the 1967-8 foot-and-mouth disease epidemic with reference to the initial spread, the origin of outbreaks more than 60 km. from the main epidemic area, the series of outbreaks near worcester, a specific case history and the daily rate of spread of the epidemic, strongly suggests that the weather played a major part in the spread of disease. the two main factors involved in this type of spread are wind and precipitation. it is noted that after the epidemic had been checked, followin ...19705270205
epidemiological studies on salmonella senftenberg. ii. infections in farm animals. 19695278164
animal bones. 19705464495
the reproductive efficiency of british breeds of sheep in an equatorial environment. 19705529154
border disease of sheep. 19705529156
bright blindness in sheep--the relationship to environment. 19705530634
world incidence of hydatid disease in general and pulmonary hydatid disease in particular with special reference to india. 19705533669
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