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Previous attempts to transfer embryos non-surgically to heifers have been rather discouraging. The present experiment describes a simple non-surgical technique where the 6½–7½ -day old embryo is placed in a 0....
In Norway a variant of Mycobacterium paratuberculosis occurs which causes disease in goats but very seldom in sheep and cattle. Cultural and biochemical characteristics of this variant are investigated by comp...
Streptococcus pyogenes, S. agalactiae, S. dysgalactiae, S. equi, S. equisimilis, S. zooepidemicus, Streptococcus group G and L were found to produce deoxyribonucleases (DNases) which were demonstrated using th...
A randomized, blocked 23 factorial experiment was conducted with 48 pigs from sows fed a diet low in selenium and vitamin E. From 3 to 12 weeks of age the piglets were kept in single pens and fed a basic diet con...
An intragastric inoculation of approx. 2 × 1010 Yersinia enterocolitica cells killed chinchillas in three days in the case of four strains out of six tested. Because of the sensitivity of chinchillas to this bact...
The occurrence of group specific complement fixing antibodies was studied in 361 cattle sera from 36 herds in 6 areas in Finland. Sixty-two (17.2%) were positive. The antibody frequency increased significantly...
The concentrations of IgG, IgM, IgA and the specific sow colostrum trypsin inhibitor (SCTI) were measured by radial immunodiffusion in colostrum and milk samples from sows and in serum samples from their offsp...
Five outbreaks of infectious bovine keratoconjunctivitis were examined for bacteria and mycoplasmas. Mycoplasma bovoculi was demonstrated in four of the five outbreaks. Other mycoplasmatales were represented b...
The concentrations of copper, zinc and molybdenum were measured in the liver of goats from western and south-eastern Norway. The mean copper concentrations in the liver of goats from these two districts were 2...
A method is described which allows detection of 0.025 µg streptomycin sulfate per ml. This represents an improvement of sensitivity by 8 times when compared with the currently used method. By adding penicillin...
The distribution of 35S-labelled sulfadiazine and 14G-labelled trimethoprim was studied in rainbow trout by use of whole body autoradiography and liquid scintillation. As compared to mammals, gastrointestinal abs...
Peripheral blood plasma Cortisol concentration and its diurnal variation was measured in 4 horses. Mean concentration of Cortisol during 24 hrs. was 42 ng/ml (s ± 20 ng/ml). Peak values occurred at 6 a.m. and ...
The rate of disappearance of Evans blue dye from the blood after an intravenous injection was studied in young foals, between 4 and 105 days of age. This was found to be age dependant, especially during the fi...
The aim of the present investigation was to study the development of the reproductive organs in boars fed restrictively and fed ad libitum. A total of 120 boars were purchased by the experimental station at 20...
Demonstration of Trichinella spiralis in suspensions of digested muscle tissue has until now mainly been based on methods utilizing the coiling and/or the motility of the living larvae. Considering this, Jackson ...
Gaffkemia, which has recently been reviewed by Stewart & Rabin (1970) and by Stewart (1975), is a fatal bacterial disease of the American and European lobster (Homarus americanus and Homarus vulgaris) (Snieszko &...
Lowered albumin levels with normal or slightly elevated γ-globulin levels are well known features of various gastro-intestinal disorders in cattle. Thus, this picture is a prominent finding in clinical osterta...
A comparison of the picture of vitamin D intoxication in sheep caused by injection of vitamin D3 and the picture caused by injection of lα-OH-cholecalciferol was made. The clinical symptoms were moderate. Unwi...
A total of 407 swine bred in south-eastern Norway have been tested for the presence of Toxoplasma gondii antibodies in serum by use of the dye-test, and diaphragm muscle from all sero-positive and some sero-ne...
Advanced lesions in the jejunal mucosa in virus enteritis of mink were studied by scanning electron microscopy. The changes were found to be in good accordance with those observed in the light microscope, and ...
Three goats were dosed orally with a 0.2 % aqueous copper sulphate solution. The dosing was 20 mg copper sulphate/kg body weight twice a day for 56 to 113 days. One of the goats accumulated substantial amounts...
Pigs deficient in vitamin E and selenium had a decreased contrast of the intracellular membranes compared with pigs supplemented with vitamin E and selenium. Other common changes in the deficient animals inclu...
In an experiment with 24 young calves, lasting 45 days, all were fed a high lactose milk replacer causing some diarrhoea. Eight calves received grass silage and 8 fine hay in addition, while 8 received no soli...
The changes of redox potential were measured in growing cultures of three strains of Streptococcus bovis, together with three strains of Staphylococcus aureus and one strain of each of Lactobacillus plantaram,...
Frozen samples of Finnish ready-mixed mink feed were analyzed for total bacterial count, the number of faecal streptococci, the coliform count, the number of haemolytic bacteria and the number of sulphite-redu...
Three experiments have been carried out to elucidate the possible influence of the vitamin E and selenium content of the feed on experimental swine dysentery. In most of the pigs given a vitamin E and selenium...
The applicability of a modified infectious bovine rhino-tracheitis constant-virus/varying-serum neutralization test, with preincubation of virus-serum mixtures at 37°C for 24 hrs. ( ...
Ionized calcium has been determined with a new improved instrument on serum samples from 111 Swedish red-and-white cows. Simultaneous sampling of plasma and serum was performed in 32 cows for comparison of the...
The action of bacterial endotoxin on the pharmacokinetics of warfarin was investigated in rabbits injected with bacterial endotoxin from E. coli. High doses of endotoxin were able to change the kinetics of war...
The specific trypsin inhibitor in porcine colostrum first described by Laskowski et al. (1957) is assumed to protect maternal antibodies in colostrum during absorption from the gut of the neonatal piglets (Baintn...
Copper absorption, liver accumulation and development of copper toxicosis in sheep are influenced by a variety of other elements, in particular molybdenum, sulphur and zinc (Underwood 1977). In a previous study o...
A variety of environmental factors such as feeding and climate may influence the plasma cholesterol concentration. Earlier experiments have, however, indicated that genetic differences also exist (Heidenreich et ...
Up to now, a sedimentation technique has been used for demonstration of Trichinella spiralis larvae released by artificial digestion (Henriksen 1973, Skovgaard 1975, Thomsen 1976, 1977, and others).
A limited number of studies have been published concerning intrauterine infusions in the bitch, presumably because it is difficult to pass a catheter into the canine cervix. Cobb (1959) designed an apparatus for ...
In 1969 25 musk ox calves were captured in Greenland and brought to Norway. The animals were kept on a farm at Bardu in the northern part of the country. In this herd a serious outbreak of contagious ecthyma o...
Previous investigations have clearly shown the existence of associations between halothane sensitivity, the H blood group system and the PHI enzyme system in pigs (Rasmusen & Christian 1976, Jørgensen et al. 1976...
The immunizing effect of BCG vaccination against infection with M. avium was evaluated in pigs on the basis of clinical and pathological findings and numbers of acid-fast organisms in the tissues.
D-penicillamine and 2,3-dimercapto-propane-l-sulphonate (DMPS) were administered orally and disodium-calcium-ethylene-diamine-tetraacetate (Ca-EDTA) subcutaneously into copper loaded sheep. The results showed ...
It has earlier been shown that the formol-gel test on serum and glutaraldehyde test on whole blood are simple and rapid methods for evaluation or the immunoglobulin status in the cow. Both tests function as co...
Seventy bovine mycoplasma strains recovered from cases of calf pneumonia, and all displaying the cultural characteristics of Mycoplasma dispar, were compared to the type strain of this species by the disc grow...
The purpose of this investigation was to give a survey of the classification of ovine/caprine mycoplasmas as a basis for the identification of strains isolated from sheep and goats. A total of 13 strains repre...
Fiftysix calves, in 2 similar experiments, were given 1 of 4 diets including a high lactose milk replacer: ground barley (GB), ground barley plus coarse hay (GB + GH), coarse hay (CH) and the liquid diet only ...
Whole-body autoradiography of DDT-14G, 2,2′,4,5′-tetrachlorobiphenyl-14G and 2,2′,3,3′,4,4′,5,6′-octachlorobiphenyl-14C in laying quails indicated a strong deposition of radioactivity in the yolk of the growing f...
The incidence of anoestrus, suboestrus, delayed ovulation, cystic ovaries, repeat breeder cows, endometritis and other forms of infertility was studied in 283 herds over a period of eight years (2,304 cases). ...
The incidence of dystocia, uterine, prolapse, retained placenta, puerperal metritis and vaginal prolapse was investigated in 283 herds over a period of eight years (about 2,590 cows per year). The incidence of...
The use of a video scanning apparatus (Leitz, T.A.S.) for the determination of the corticomedullary proportion in histological sections of the avian adrenal gland is described and statistically evaluated. When...
A large S. infantis infection epidemic in broiler chickens was studied during a period of one year. The outbreak affected three broiler producing companies in Finland. The infection spread to breeding farms ac...
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Acta Veterinaria Scandinavica