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Vaccinal reaction and seroresponse induced by an Ulster 2C strain derived Newcastle disease (ND) vaccine (ND) (PoulvacR NDW Broiler) were compared with those due to three other lentogenic ND vaccines (NDP, LZ58 and Clone 30) used in broilers in the Netherlands. Comparisons were made in SPF-WL hens and commercial broilers with maternally derived antibodies,(More)
PURPOSE In an effort to develop new therapeutic strategies to treat malignant gliomas, we have designed poly (lactic-co-glycolic) acid (PLGA) microparticles that deliver imatinib mesylate, a small molecule tyrosine kinase inhibitor. The local continuous release of imatinib mesylate at the tumor site overcomes many obstacles associated with systemic(More)
Malabsorption syndrome, defined by five criteria, could not be reproduced by oral inoculation of newly hatched chicks with six reoviruses isolated from six different cases. Passage in birds of four reoviruses with intestinal homogenates did not result in increased pathogenicity. In contrast, inoculation of complete infectious intestinal homogenate caused(More)
  • E Goren
  • 1978
A study was made of the pathogenesis of colibacillosis in chicks in order to develop a reproducible model for the induction of the disease by inoculation. In experimental infections with Escherichia coli (E. coli), serotype 026K60 was pathogenic only during the first week of age, whereas serotype 078K80 caused lesions during the first 3 weeks. Natural(More)
The Nurmi concept for diminishing salmonella infection of poultry by application of gastrointestinal microflora from adult birds into newly hatched chicks was tested in a field study in which 8 million broilers were involved. Half of the 284 flocks was treated in the hatchery by spray application of an undefined microflora propagated in SPF chicks. A(More)
The efficacy of spray application of intestinal microflora of the adult bird in protection of broilers against salmonella infections was studied in 3 experiments under laboratory and field conditions. In chicks treated soon after hatching (in the hatchers at approximately 30 per cent hatch or in the chick delivery boxes in the hatchery) with crop-caecum(More)
In two experiments newly hatched broilers were orally inoculated either with intestinal microfloras cultured under different conditions or with a suspension of intestinal homogenate and challenged with high doses (3 X 10(5) c.f.u. per chick) of Salmonella infantis organisms. Inocula were prepared from intestinal material of mature SPF WL hens under aerobic(More)
An outbreak of fowl cholera in a broiler-house with 6,000 six-week-old broilers is reported. The birds were affected with respiratory disease when they were four weeks old. Eight days after recovery, at an age of six weeks, 50 per cent of the birds were severly ill. The birds were reluctant to move and unable to drink. Four hundred birds died in one day.(More)
  • E Goren
  • 1979
One hundred and ninety four Escherichia coli strains, isolated from birds received from 15 farms for post mortem examination and showing a variety of clinical pictures, have been tested for susceptibility to several drugs. From examination of several subcultures (colonies) from a particular organ it was concluded that there are great differences in(More)