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. 2017 Apr 26;13:115. doi: 10.1186/s12917-017-1029-0

Fig. 4.

Fig. 4

Changes in M. synoviae antibody levels in several clinical native breed chickens.The 3 breeds of broiler (a total of 12 flocks), including Three-Yellow-, Silky-, and Qingyuan Ma-chicken, were tracking for change of M. synoviae antibody at 4, 5, 6, 7 weeks old in the production process, respectively. Positive M. synoviae antibody was first observed in the Silky chicken flocks (at 5 weeks-old), but last in the Qingyuan Ma-chicken flocks (at 7 weeks-old). P < 0.05