Table 4. Experimental diets composition (% wet weight)
Diet 1
Control
Diet 2
Rapeseed
Hydrolysate
(D.H.: 23,63%)
Diet 3
Rapeseed
Hydrolysate
(D.H.: 14%)
Diet 4
Rapeseed
Hydrolysate
(D.H.: 7%)
Proteins
40.73
39.38
40.89
42.21
Fats
19.42
19.85
18.05
18.5
Ashes
8.9
6.95
7.83
7.73
Moisture
5.69
6.83
6.72
6.84
Fiber
1.97
3.76
3.44
2.57
P
0.95
1.18
1.1
1.05
Ca
2.58
1.66
1.78
2.01
Ca/P
2.72
1.41
1.62
1.91
D.H.: Degree of Hydrolysys
Table 5. Mean weight evolution
Weight (g)
Diet 1
Diet 2
Diet 3
Diet 4
Tanks
2-7-12
3-8-13
4-9-14
5-10-15
Initial
168.70 ±1.35
166.92 ±2.01
168.67 ±0.8 168.67 ±0.84
0-40 days
214.90 ±19.35
ab
216.33 ±22.53
b
211.79 ±14.29
a
206.48 ±17.51
a
40-66 days
246.84 ±25.46 250.84 ±25.12 252.36 ±20.71
241.83 ±21.79
66-115 days
302.54±43.47
ab
321.51 ±51.51
b
312.24 ±39.17
ab
312.39 ±44.75
b
115-150 days 326.07 ±45.47
a
349.42 ±52.01
b
339.95 ±44.49
a
341.05 ±50.54
ab
Values ​​with different letter in same row differ significantly (p<0.05)
Photo 1: Viscera of the
fish sampling for the
purpose of testing
Plant protein isolates and hydrolysates as alternative to the animal protein in aquaculture diets
55
1...,47,48,49,50,51,52,53,54,55,56 58,59,60,61,62,63,64,65,66,67,...84