Localities

(Region)

Collar diameter (cm)

7^th

10^th

13^th

16^th weeks

Be

(East)

0.52 ± 0.07^b

0.82 ± 0.04^de

0.76 ± 0.11^c

0.70 ± 0.05^b

Bi

(Adamawa)

0.71 ± 0.09^c

0.94 ± 0.09^e

1.07 ± 0.12^f

1.01 ± 0.07^c

Dj

(Far North)

0.44 ± 0.12^ab

0.67 ± 0.07^bc

0.64 ±0.09^b

0.67 ± 0.04^b

Dl

(Littoral)

0.36 ± 0.09^a

0.44 ± 0.08^a

0.54 ± 0.08^a

0.45 ± 0.04^a

Ds

(West)

0.64 ± 0.10^c

0.90 ± 0.16^e

0.98 ± 0.08^ef

0.86 ± 0.12^c

Eb

(South)

0.46 ± 0.05^ab

0.76 ± 0.06^cd

0.86 ± 0.10^cd

0.67 ± 0.08^b

Nk

(Centre)

0.53 ± 0.04^b

0.64 ± 0.08^b

0.92 ± 0.08^de

0.70 ± 0.08^b

Tb

(North)

0.67 ± 0.09^c

0.84 ± 0.16^de

1.05 ± 0.07^f

0.91 ± 0.10^c