Utilization of egg-laying hens (Gallus Gallus domesticus) for production of ingredients for human consumption and animal feed

Table 2 Distribution of dry matter after processing

Sample	Oil	Hydrolysate	Sludge
Thermal treatment
HwT	15.7 ± 0.6		28.3 ± 3.0
Hw/oT	9.4 ± 0.5		25.6 ± 2.5
Enzymatic hydrolysis
HwH0	18.3 ± 8.3	1.3 ± 0.3	26.5 ± 6.8
HwHA	18.4 ± 10.1	1.5 ± 0.2	23.3 ± 5,4
HwHPr	19.4 ± 5.1	4.9 ± 0.4	18.9 ± 2.3
HwHPP	16.0 ± 5.5	2.6 ± 0.6	21.7 ± 3.8
HwHP+B	22.1 ± 5.9	5.2 ± 0.5	15.8 ± 2.8
Hw/oH0	10.2 ± 2.4	1.6 ± 0.1	26.1 ± 3.3
Hw/oHA	10.1 ± 2.5	1.5 ± 0.2	27.2 ± 4.4
Hw/oHPr	11.2 ± 1.0	6.2 ± 0.6	17.7 ± 1.1
Hw/oHPP	9.6 ± 1.3	4.5 ± 1.2	21.8 ± 4.6
Hw/oHP + B	13.0 ± 2.0	5.5 ± 0.4	19.2 ± 4.2
Silaging
HwSA	14.3 ± 1.3		24.1 ± 5.1
HwSA.Su	15.6 ± 0.1		20.1 ± 2.9
HwSF	17.7 ± 0.7		19.2 ± 0.0
HwSF.Su	17.4 ± 0.6		17.6 ± 0.0
Hw/oSA	8.0 ± 2.0		25.0 ± 3.4
Hw/oSA.Su	7.4 ± 3.7		25.6 ± 0.0
Hw/oSF	7.0 ± 1.4		30.6 ± 0.0
Hw/oSF.Su	2.6 ± 1.7		28.7 ± 0.0

Dry matter yield in fractions obtained from processing of egg-laying hens with viscera, head and feathers (Hw), and egg-laying hens without viscera, head and feathers (Hw/o), by thermal treatment (T), enzymatic hydrolysis (H) and silaging (S). Abbreviations are given for the individual treatments: without hydrolysis (0), autolysis (A), 0,1% Protamex (Pr), 0,1% Corolase PP (PP), 0,1% Papain + Bromelain (P + B), acetic acid (A), acetic acid + 0,1% sulfite (A.Su), formic acid (F) and formic acid + 0,1% sulfite (F.Su). Dry matter yield is given as dry matter (g)/ 100 g raw material (wet weight) (\( \overline{\mathrm{x}} \) ± SD, n = 10(T,H), n = 5(S))

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