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Impact of Naked neck (Na) and Frizzle (F) genes on general immunocompetence in egg type chicken

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Title Impact of Naked neck (Na) and Frizzle (F) genes on general immunocompetence in egg type chicken
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Creator Revagade A.Y., Ali H., Singh D.P.* and Narayan Raj
 
Subject Major genes, humoral response, antibody response to SRBCs, CMIR.
 
Description Not Available
Tropical oriented major genes Naked neck (Na) and Frizzle (F) were introgressed in two populations of White Leghorn at Central Avian Research Institute, Izatnagar (India). Major genes are believed to confer not only adaptability to the tropical climate, but also resistance to diseases. Disease resistance is composed of three basic sub-systems, the humeral, cellular and phagocytic. The humeral response is evaluated through antibody response to SRBCs, in vivo cell mediated (CMI) response to PHA-P. Total HA titre, 2-mercaptoethanol resistance (MER) and 2-mercaptoethanol sensitive (MES) antibody titre were estimated on 5 day post injection (dpi). Mean titres (log2) at 5 dpi for HA, MER and MES in Naked neck were 8.810±0279, 3.180±0.150, 5.630±0.269 and corresponding values for Frizzle were 8.429±0.279, 2.776±0.105, 5.653±0.269, respectively. There was no significant difference between varieties for the humoral immune response. CMI response to PHA-P was evaluated by injection of PHA-P into toe- web between second and third digit of chicks. The effective mean swelling measured after 24, 48 and 72h post PHA-P injection in Naked neck and Frizzle varieties were 0.339±0.032, 0.097±0.031, 0.072±0.024 and 0.136±0.014, 0.091±0.017, 0.069±0.012 mm, respectively. CMI to PHP-A differed significantly (P
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Date 2018-12-31T04:55:16Z
2018-12-31T04:55:16Z
2013-01-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/16326
 
Language English
 
Relation Not Available;
 
Publisher Indian Journal of Poultry Science