Precipitin Production in Chickens

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Abstract
Summary: The antibody response of chickens of various ages and different breeds to a single injection of bovine serum albumin was studied. The response is expressed as micrograms nitrogen per ml serum. Statistically significant increases in response occurred between 6 and 12 weeks and between 12 and 22 weeks. The average titer of 56-week-old birds was greater than the 22-week-old animals but the difference was not statistically significant. Three- to 8-year-old animals gave high titered antisera. There were large variations in antibody response in all age groups. A statistically significant difference due to breed was found only in the 6-week-old chickens. The responses of the males were not significantly different from those of the females.

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