J
'
Carp nutrition
63
ME requirements (kJ kg—O'8 d'1 =
,…s.<';
}.
"
retained ener
kJ k “0.8 d"1
».
…
————————————g—y————g——w—
+
32.7 k.] ME
kg'o—8 D“1
“
kg
m
kg = efficiency of ME for growth.
Efficiency for utilization of metabolizable energy for growth
The measurement of
the ME in feeding experiments was performed by
Huisman (1976), Koch'(l984) and Becker (1984) using 02—consumption (QOX 14.85
kJ g02”1) in combination with the comparative slaughter technique. The sum of
energy retention and heat production calculated from oxygen consumption re—
flects
the I=Πintake. The partial efficiency of HE for growth is calculated
by :
.
k
_
retained energy
g —
_
..
ME
IŒEm
Table 5
shows
some
growth data and important parameters of the energy
turnover
in intensively growing carp. The experiments were performed with
carp of initial average weight of about 60 g. The fish were died nine times a
day by hand seven days a week 2%
of air dry feed. Apart from ration
1, all feeds were neutralized. The differences between rations 3 and 4 as
Table 5.
Influence of diet on body weight gain and the efficiency of
utilization of energy and protein (Becker, 1984).
Ration
1
2
3
4
5
6
Commosition of
Feed dry matter
Protein
%
35.4
34.2
33.4
33.2
35.1
83.8
Ether extract
%
12.2
12.8
12.2
11.3
12.4
4.1
et
—
Cellulose %
4.8
4.8
4.7'
4.8
4.5
2.4
MJ GE
-
kg—1
21.0
21.0
19.7
21.0
20.3
21.7
Body weight gain
g - fish ’1(81 days)
279
317
302
93
342
435
Feed: gain
(9/9)
1.08
0.96
0.99
1.38
0.95
091
100
37.8
38.7
41.2
27.2
38.7
28.8
… x 100
37.7
38.3
39.7
22.7
41.4
30.7
nergy-Intake
Oxygen Consumption
258
263
248
203
233
273
mg kg-0.8_ h—l
Calculated Heat production per fish during
81 days (MJ) for:
Maintenance
0.81
0.83
0.80
0.34
0.86
0.33
Synthesis
1.12
1.15
0.93
0.17
0.97
1.54
.
Total heat
1.93
1.88
1.73
0.51
1.83
2.47
Energy (MJ)
GE-In‘take
8.21
6.38
5.87
2.40
8.59
7.84
Retained
2.45
2.31
2.33
0.55
2.73
2.35
.
Metabolizability
(ME—% of GE)
70.5
87.5 '
89.2
44.2
89.2
8351
…
HE MJ-kgf1Feed D.H.
14.5
14.2
13.8
9.3
-
14.0
13.7
Utilization of ME:
_
'
’
‘
‘
‘
Retained Energy % of ME
55.9
53.8
57.4
51-.9
59.9
48.8
—
‘
En“
‘.
7
0 74
0.80
mÈm__QL
0.89
0.87
0.72
0. 8
.
.
ME… :: of HE
.
18.5
19.3
19.7
32.1
18.6
19.3
.
KJ ME ' g protein
4
38
41
46
retained -1 ‘(Kf : 0,9)
52
49
3
Kp
0.45
0.48
0.54
0.83
0.58
0.51
'
Carp nutrition
63
ME requirements (kJ kg—O'8 d'1 =
,…s.<';
}.
"
retained ener
kJ k “0.8 d"1
».
…
————————————g—y————g——w—
+
32.7 k.] ME
kg'o—8 D“1
“
kg
m
kg = efficiency of ME for growth.
Efficiency for utilization of metabolizable energy for growth
The measurement of
the ME in feeding experiments was performed by
Huisman (1976), Koch'(l984) and Becker (1984) using 02—consumption (QOX 14.85
kJ g02”1) in combination with the comparative slaughter technique. The sum of
energy retention and heat production calculated from oxygen consumption re—
flects
the I=Πintake. The partial efficiency of HE for growth is calculated
by :
.
k
_
retained energy
g —
_
..
ME
IŒEm
Table 5
shows
some
growth data and important parameters of the energy
turnover
in intensively growing carp. The experiments were performed with
carp of initial average weight of about 60 g. The fish were died nine times a
day by hand seven days a week 2%
of air dry feed. Apart from ration
1, all feeds were neutralized. The differences between rations 3 and 4 as
Table 5.
Influence of diet on body weight gain and the efficiency of
utilization of energy and protein (Becker, 1984).
Ration
1
2
3
4
5
6
Commosition of
Feed dry matter
Protein
%
35.4
34.2
33.4
33.2
35.1
83.8
Ether extract
%
12.2
12.8
12.2
11.3
12.4
4.1
et
—
Cellulose %
4.8
4.8
4.7'
4.8
4.5
2.4
MJ GE
-
kg—1
21.0
21.0
19.7
21.0
20.3
21.7
Body weight gain
g - fish ’1(81 days)
279
317
302
93
342
435
Feed: gain
(9/9)
1.08
0.96
0.99
1.38
0.95
091
100
37.8
38.7
41.2
27.2
38.7
28.8
… x 100
37.7
38.3
39.7
22.7
41.4
30.7
nergy-Intake
Oxygen Consumption
258
263
248
203
233
273
mg kg-0.8_ h—l
Calculated Heat production per fish during
81 days (MJ) for:
Maintenance
0.81
0.83
0.80
0.34
0.86
0.33
Synthesis
1.12
1.15
0.93
0.17
0.97
1.54
.
Total heat
1.93
1.88
1.73
0.51
1.83
2.47
Energy (MJ)
GE-In‘take
8.21
6.38
5.87
2.40
8.59
7.84
Retained
2.45
2.31
2.33
0.55
2.73
2.35
.
Metabolizability
(ME—% of GE)
70.5
87.5 '
89.2
44.2
89.2
8351
…
HE MJ-kgf1Feed D.H.
14.5
14.2
13.8
9.3
-
14.0
13.7
Utilization of ME:
_
'
’
‘
‘
‘
Retained Energy % of ME
55.9
53.8
57.4
51-.9
59.9
48.8
—
‘
En“
‘.
7
0 74
0.80
mÈm__QL
0.89
0.87
0.72
0. 8
.
.
ME… :: of HE
.
18.5
19.3
19.7
32.1
18.6
19.3
.
KJ ME ' g protein
4
38
41
46
retained -1 ‘(Kf : 0,9)
52
49
3
Kp
0.45
0.48
0.54
0.83
0.58
0.51