ABSTRACT
Field trials were conducted to establish the effect of the use of an inactivated oil emulsion vaccine against Infectious Bursal Disease (IBD OEV) in broiler breeder hens, and its effects on their progeny. The performance of 18 broiler flocks, which were the progeny of the IBD OEV vaccinated breeder hens, but which were not vaccinated with a live vaccine against IBD, was equal to that of broiler flocks which were vaccinated with a live IBD vaccine and originated from parent stock that had been vaccinated only against IBD with a live vaccine. In none of the 18 flocks, progeny of IBD OEV vaccinated parents, was IBD diagnosed. In a second stage, 15 broiler flocks were included in the trial: these were derived partly from IBD OEV vaccinated parents, and partly from parents that received only live IBD vaccine at 8-10 days of age. No cases of IBD occurred and all flocks were positive for IBD precipitins at slaughter age. Vaccination with a live vaccine against IBD at the age of 8-10 days had no influence on NCD antibody development after a NCD vaccination at 7 days. No immunosuppressive effect from this type of live live IBD vaccine could be determined under field conditions.
Subject(s)
Chickens/physiology , Infectious bursal disease virus/immunology , Poultry Diseases/prevention & control , Reoviridae Infections/veterinary , Reoviridae/immunology , Viral Vaccines/immunology , Animals , Antibodies, Viral/biosynthesis , Body Weight , Emulsions , Female , Fertility , Male , Oils , Reoviridae Infections/prevention & control , Vaccines, Attenuated/immunologyABSTRACT
This paper discusses the advantages and disadvantages of the use of double-lumen tubes in pulmonary surgery. The method to be used has to be determined in each individual case. Regular peroperative determination of arterial blood gas values is part of the monitoring required in pulmonary surgery (Acta anaesth. belg., 1980, 31, 29-34).
Subject(s)
Intubation, Intratracheal/instrumentation , Lung/surgery , Humans , Intubation, Intratracheal/adverse effects , Pulmonary Embolism/etiology , Thoracic Surgery/instrumentationABSTRACT
Tumor embolus as a cause of death during lung surgery is not a common occurrence. Aspects of this uncommon observation are discussed, and 4 cases from the literature about this subject are reviewed. A brief discussion of treatment and the possibility of prevention is presented.
