IMMUNOLOGICAL INDICATORS OF TURKEY POULT BLOOD UNDER THE INFLUENCE OF «BAIKAL EM-1» PROBIOTIC

The life cycle and pathogenicity of a strain of Eimeria isolated in Great Britain from turkey poults by single cell inoculation are described and, using the criteria laid down by Tyzzer, the species is identified as E. adenoeides.The life cycle is of the same general pattern as in other Eimeria species, consisting of two asexual and one sexual generations.The organism is highly pathogenic for young poults, a dose of 200,000 oocysts producing 100 % mortality in 3-week-old birds and smaller doses causing reduced weight gain. Birds 11 weeks old resisted a dose of 3 million oocysts.The gross and microscopic pathology of the infection is described. No changes were found in the blood picture.

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The posthatch physiology of the Turkey poult—II. Hematology

Comparative Biochemistry and Physiology Part A Physiology ◽

10.1016/0300-9629(87)90635-9 ◽

1987 ◽

Vol 86 (4) ◽

pp. 745-750 ◽

Cited By ~ 11

Author(s):

Patricia V Phelps ◽

F.W Edens ◽

V.L Christensen

Keyword(s):

Turkey Poult

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Acquired tolerance of turkeys to Rous sarcoma agent

Proceedings of the Royal Society of London Series B Biological Sciences ◽

10.1098/rspb.1956.0071 ◽

1956 ◽

Vol 146 (922) ◽

pp. 59-66 ◽

Cited By ~ 17

Keyword(s):

Blood Cells ◽

Intramuscular Injection ◽

Strong Support ◽

Skin Transplantation ◽

Turkey Poult ◽

Rous Sarcoma ◽

Virus Tolerance ◽

Transplantation Antigens ◽

Intravenous Inoculation ◽

Host Component

Five- to eight-weeks old A.M.B. turkeys cannot be infected by intramuscular injection with cell-free Rous tumour agent unless they have been made tolerant by intravenous inoculation at 1 day old with whole blood or with washed blood cells from young normal chickens of the strain in which the sarcoma is usually propagated. The duration of the immunologically null period in the turkey poult has been investigated together with the specificity and stability of the tolerance-producing antigens and their relationship to skin transplantation antigens. The results afford strong support for the existence of at least one immunologically distinctive host component for the Rous agent, and this method of investigation, i.e. the production of virus tolerance in another species with identifiable antigens (possible sources of which are discussed), appears to offer an opportunity for identifying such a component or components.

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