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Ceva - Together, beyond animal health2015 Annual Report Website
Ceva - Together, beyond animal health
Online Bulletins



2011


January - The Vector Vaccines Technology in Poultry: A New Era Has Arrived




CEVA Santé Animale has held a scientific symposium on vector vaccines technology applied in poultry production in San Diego, California on October 6-8, 2010. External researches, field practitioners, as well as Ceva scientists displayed their experience in using vector vaccines and the obtained benefits. More generally, the perspectives in terms of better, stronger, and mote accurate immunization against several major poultry diseases have been highlighted.



March - Farm Biosecurity for Better Performance and Higher Profit




Over the last few decades the poultry industry – supported by technological advances in genetic selection, feed quality, growing methods, processing and marketing – has outstripped all other agricultural commodities in both, developed and developing countries. This is mainly due to poultry being the most efficient protein-producing (meat and eggs) domestic species with the lowest feed conversion ratio.



May - Clinical Traits and Pathology of Newcastle Disease Infection and Guidelines for Farm Visit and Differential Diagnosis



The main body of evidence regarding the clinical aspects of avian paramyxovirus type 1 (APMV-1) infection has been collected from poultry, mainly chickens. Based on the occurrence and severity of clinical manifestations, Beard and Hanson (1984) identified five viral pathotypes (Table 9.1). The clinical manifestations of this disease are highly variable and there are no lesions or signs that can be considered pathognomonic (McFerran and McCracken 1988).



July - Physiological control mechanisms during late embryogenesis and during pipping and hatching



Hatching marks the termination of prenatal life in the bird and represents a drastic change from a well-protected aqueous environment to a more hazardous life outside the egg



December - Administration of Cell-Associated Marekvaccines: The equipment can make a difference !



The use of cell associated vaccines, such as those to prevent Marek’sdisease, has gained considerable importance in recent decades. The introduction of vector vaccines (like vaccines of the Vectormune® range), using the Turkey Herpes Virus as vector, will reinforce this trend. To keep the virus alive, it is important that the cells of the cell associated vaccine stay alive. The virus that must initiate the immunisationprocess can only do its work if administered alive to the day old chicks. Although vaccine producers in general provide more vaccine carrying cells per dose than obliged, it is crucial that factors having an influence on the maximum number of live cells actually injected into the day old chick are controlled.


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Always follow label instructions and consult your veteriarian or poultry health adviser.

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