International Journal of Aquaculture, 2016, Vol.6, No.12, 1
-
11
5
Figure 3 Monthly POV changes of Coppens
®
stored under
Airtight and open conditions for the period of six months.
Figure 4 Monthly POV changes of Multifeed
®
stored under
airtight and open conditions for the period of six months.
Figure 5 Monthly POV changes of Vitafeed
®
stored under
airtight and open conditions for the period of six months.
Figure 6 Monthly FFA changes of Coppens
®
stored under
airtight and open conditions for the period of six months
.
Figure 7 Monthly FFA changes of Multifeed
®
stored under an
airtight and open condition for the period of six months.
Figure 8 Monthly FFA changes of Vitafeed
®
airtight and
Vitafeed
®
open over the storage period.
The observed notable difference between values of phosphorus, calcium, magnesium, and iron reported by
manufacturers and those determined in the laboratory (Table 4) could be attributed to the length of storage before
the experiment started, the storage conditions and environmental factors. This is justified by the observed
Initial
Nov '12
Dec '12
Jan '13
Feb '13
Mar '13
Apr '13
0
10
20
30
Coppens Airtight
Coppens Open
POV (mequiv O
2
/kg)
Initial
Nov '12
Dec '12
Jan '13
Feb '13
Mar '13
Apr '13
0
10
20
30
40
50
Multifeed Airtight
Multifeed Open
POV (mequiv O
2
/kg)
Initial
Nov '12
Dec '12
Jan '13
Feb '13
Mar '13
Apr '13
0
10
20
30
40
50
Vitafeed Airtight
Vitafeed Open
POV (mequiv O
2
/kg)
Initial
Nov '12
Dec '12
Jan '13
Feb '13
Mar '13
Apr '13
6
7
8
9
10
11
Coppens Airtight
Coppens Open
Free Fatty Acid (%)
Initial
Nov '12
Dec '12
Jan '13
Feb '13
Mar '13
Apr '13
6
8
10
12
Multifeed Airtight
Multifeed Open
Free Fatty Acid (%)
Initial
Nov '12
Dec '12
Jan '13
Feb '13
Mar '13
Apr '13
0
5
10
15
20
Vitafeed Airtight
Vitafeed Open
Free Fatty Acid (%)
