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Table 6 Effect of defatted algae on yolk color

From: Effect of dietary defatted diatom biomass on egg production and quality of laying hens

Item

Control

7.5% Algae

7.5% Algae

15% Algae

-SBM

-SBM/Corn

-SBM/Corn

At the end of the 4th wk

   

L*(lightness)

54.806 ± 0.541a

52.502 ± 0.602b

51.943 ± 0.650b

50.328 ± 0.878c

+a*(redness)

11.576 ± 0.209a

13.438 ± 0.305b

13.316 ± 1.015b

12.939 ± 0.329b

+b*(yellowness)

35.660 ± 0.314a

34.522 ± 0.320b

34.013 ± 0.383b

33.038 ± 0.558c

At the end of the 8th wk

   

L*(lightness)

54.758 ± 0.430a

52.718 ± 0.393b

51.690 ± 1.014c

50.732 ± 0.762d

+a*(redness)

11.084 ± 0.317a

12.573 ± 0.288b

12.518 ± 0.889b

11.356 ± 0.607a

+b*(yellowness)

35.479 ± 0.238a

34.499 ± 0.149b

33.697 ± 0.561c

32.856 ± 0.239d

  1. a,b,c,dMeans in the same row without a letter in common are different (P < 0.05).