Showing papers in "British Veterinary Journal in 1990"

TL;DR: Despite some views to the contrary the working party of the Association of Veterinary Teachers and Research Workers considers that it has been demonstrated that it is possible to prepare guidelines for the recognition and assessment of pain in experimental animals.

TL;DR: In each of two experiments, subclinical mastitis was induced by inoculating both mammary glands of Welsh-Mountain and Dorset-Horn ewes with a coagulase-negative staphylococcus; groups of control eWes were also included.

TL;DR: Calves which survived tended to be hypokalaemic whereas those which died showed intensifying metabolic acidosis and hyperkalaemia, and Hypoglycaemia developed, but it was not generally worse in calves which failed to survive, though there were exceptions.

TL;DR: Brainstem auditory evoked potential (BAEP) waveforms were recorded as a means of objectively evaluating auditory and brainstem function in horses and can be useful in evaluation of all clinical cases suspected of showing degrees of deafness, vestibular disease or brainstem disease, and in monitoring the progress of such cases.

TL;DR: The effects of purified aflatoxin B1 on cell mediated immunity in broilers were carried out using 0.3 p.p.m and 1 p.m. dose level and the percentage of acid alpha-naphthyl acetate esterase reacting lymphocytes was significantly decreased.

TL;DR: A survey was carried out in a random sample of 123 dairy farms from the east of Ireland to assess the relative impact of the personal characteristics of the farmer and the management policies he applied on the amount and quality of the milk produced.

TL;DR: The ambient conditions in the United Kingdom did not encourage the rapid natural fermentation, which would degrade the antibiotics and make it an acceptable food, and it was concluded that the high numbers of bacteria in the product may present disease risk.

TL;DR: Of 31 pregnant ewes with clinical signs of pregnancy toxaemia, 24 had hypoglycaemia and hyperketonaemia at the time that a single blood sample was obtained and 80% had a high plasma cortisol concentration.

TL;DR: The majority of Staphylococcus aureus strains showed features consistent with bovine rather than human origin, and all strains were sensitive to the antibiotics tested, except penicillin and streptomycin.

TL;DR: A transport and enrichment medium was developed for Campylobacter fetus that restricted the growth of Proteus vulgaris and Pseudomonas aeruginosa and all strains multiplied following immediate or delayed incubation.

TL;DR: In long-standing cases, the result of trypanosome infection is either serious infertility or even sterility, especially the testes and epididymides.

TL;DR: The use of a transport and enrichment medium (TEM) in the diagnosis of Campylobacter fetus infections in bulls significantly improved the diagnosis rate in samples which, because of the length of time between collection and receipt at the laboratory, were unsuitable for processing by direct culture.

TL;DR: There were significantly more mast cells detected in calf airways fixed with isotonic formal-acetic-acid compared with those seen in the same tissues fixed with neutral buffered formalin.

TL;DR: A population consisting of 70 breeder cats, 43 clinical cases, and 16 feral cats was examined for the presence of Toxoplasma gondii, feline immunodeficiency virus (FIV), and feline leukaemia virus (FeLV).

TL;DR: Serological monitoring of sheep kept in contact with both groups indicated that MV virus replication occurred to a greater extent in the group with both diseases, with three of five in-contact sheep being seropositive after 1 year's exposure compared with none of six held with MV-virus-only infected lambs.

TL;DR: It is postulated that the lowered immune response of Co-depleted cattle resulted in the greater severity of the Ostertagia ostertagi infection.

TL;DR: Analysis of 56 samples of grey seal milk produced a mean composition of 50% fat, 36.2% water, 12% protein, 0.7% lactose and 0.8% ash, where during lactation the fat content increased whilst the water content fell and no trends were seen in protein, lactose or ash content.

TL;DR: In this paper, blood samples were taken thrice weekly for 2 weeks from 33 pregnant cows in nine groups, 1 month apart, and twice daily for 8 days commencing 1 week before parturition from eight cows.

TL;DR: In the UK bracken is by far the most common of the fern species and occurs in a range of environments-woodland, heathland, open moorland, enclosed pasture and on coastal headlands, field margins, commons and roadside verges.

TL;DR: The effects of oestradiol cypionate (ECP) on spontaneous and oxytocin-induced postpartum myometrial activity were measured in four cows using strain gauge transducers (SGT).

TL;DR: Post-mortem examinations on 71 native sheep found dead on the island of North RonaldSAY, Orkney in four visits between April 1983 and July 1985 were carried out, suggesting that adaptation to the peculiar environmental rigours and dietary restrictions on North Ronaldsay is less complete than has previously been assumed.

TL;DR: During a period of 14 years 4881 badgers and 613 other free-living wild animals, representing 15 different species of mammals and 30 differentspecies of birds from the County of Cornwall were examined for the presence of salmonellae.

TL;DR: Nasal and tracheal swabs sequentially collected from three groups of eight calves between the ages of 1 and 98 days indicated that the nose andtrachea were colonized by Mycoplasma spp.

TL;DR: Individual animals showed a highly variable oestrous cycle length, which has been suggested as a contributory factor for false pregnancy diagnosis by milk progesterone test in this species, which may also identify silent heats, and clinical disorders.

TL;DR: Six susceptible and six preimmunized heifers were inseminated with semen from a bull persistently infected with bovine viral diarrhoea virus (BVDV), and all but one conceived.

TL;DR: Low mean levels of oestrone sulphate were recorded in the non-pregnant and up to the fourth month of pregnancy with the levels rising sharply thereafter to a peak of 6559.82 pg/ml in the tenth month.

TL;DR: The IDEIA ELISA is a sensitive test for the detection of C. psittaci (ovis) antigens in ewes' milk to which were added serial dilutions of chlamydiae titrated as inclusion forming units (ifus) in McCoy cell tissue culture.

TL;DR: A simple larval development test is likely to become the preferred test for evaluation of resistance in nematodes of grazing animals, as the emergence of drug resistant strains of both schistosomes and liver fluke indicates the need for simple tests to detect resistance.