Avian coccidiosis: the administration of encapsulated oocysts
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SUMMARYOocysts of fowl coccidia, suspended in a 12% aqueous solution of alginic acid, were dropped into 5% calcium chloride solution to form beads. Following ingestion by chicks, excystation of sporozoites was not affected. Oocyst viability was best when beads were air-dried to 33% of their original weight and stored in airtight containers at 4°C. Infectivity was fully maintained for 8 weeks. Trickle infection, using beads administered orally to 2- or 3-week-old chickens, or mixed daily in food of chicks from 1-day-old, established a high level of immunity. This method of oocyst administration offers some practical advantages for the conduct of immunity and chemotherapy experiments.
Studying on Preperation and Emulsifying Properties of Silk Protein Calcium Salt Made from Waste Silk
2011 ◽
Vol 197-198
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pp. 60-64
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1954 ◽
Vol 57
(6)
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pp. 417-419
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2006 ◽
Vol 129
(1-2)
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pp. 63-74
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1973 ◽
Vol 24
(3)
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pp. 363
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2014 ◽
Vol 54
(1)
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pp. 108-116
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SOME FACTORS AFFECTING UPTAKE OF CALCIUM BY APPLES DIPPED AFTER HARVEST IN CALCIUM CHLORIDE SOLUTION
1978 ◽
Vol 58
(1)
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pp. 35-40
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