. 2016 Jul 4;5(1):971. doi: 10.1186/s40064-016-2626-2

Table 2.

Amino acid composition of feather meal CFM, K6FM, K82FM, K6:K82FM and CMFM

Amino acid (g/100 g)	Treatment
Amino acid (g/100 g)	CFM	K6FM	K82FM	K6:K82FM	CMFM
Alanine	3.78^a	4.05^c	4.43^e	4.23^d	4.01^b
Arginine	5.61^a	5.84^b	6.34^e	6.29^d	6.06^c
Aspartic acid	4.91^a	4.95^b	5.74^e	5.46^d	5.16^c
Cystine	3.85^b	4.03^c	4.56^e	4.19^d	3.48^a
Glutamic acid	8.95^a	8.98^a	10.26^d	9.84^c	9.74^b
Glycine	6.83^a	7.43^b	7.92^e	7.75^d	7.54^c
Histidine	0.82^a	0.89^c	0.84^ab	0.86^bc	0.89^c
Hydroxylysine	–	–	–	–	–
Hydroxyproline	0.18^c	0.15^bc	0.11^a	0.15^bc	0.13^ab
Isoleucine	3.35^b	3.31^a	3.61^c	3.64^c	3.93^d
Leucine	6.18^a	6.38^b	7.12^d	7.03^c	7.24^e
Lysine	1.91^a	1.88^a	1.95^b	1.97^b	2.03^c
Methionine	0.56^a	0.56^a	0.61^b	0.67^c	0.56^a
Phenylalanine	3.48^b	3.51^b	4.24^d	3.37^a	3.64^c
Proline	8.46^a	9.07^b	9.91^d	9.72^c	10.27^e
Serine	9.75^a	10.10^b	11.62^e	11.30^d	10.59^c
Threonine	3.81^a	3.94^b	4.39^e	4.31^d	4.18^c
Tryptophan	0.57^a	0.70^b	0.77^c	0.77^c	0.68^b
Tyrosine	0.86^a	0.92^bc	0.90^b	0.95^cd	0.98^d
Valine	4.45^b	4.41^a	4.78^c	4.79^c	5.14^d
Total amino acids	78.31	81.10	89.65	87.29	86.25

CFM = non-enzymatically treated feather meal; K6FM = K6 keratinase treated feather meal; K82FM = K82 keratinase treated feather meal; K6:K82FM = K6and K82 keratinase (5:1) treated feather meal; and CMFM = commercial enzyme treated feather meal

^a,b,c,d,eMeans within a row with different superscripts differ significantly (P < 0.05)