|
Index:
ROVABIO EXCEL in pig feeds
Excel improves the nutritional value of pig feeds
by increasing ileal digestibility of energy
From ileal digestible energy to standard (fecal)
digestible energy
Validation in several experimental farms
• France: INRA Saint
Gilles
• France: Customer
trial
• Russia: Academy
of Agricultural Sciences
• Australia: Customer
trial
Strategy for using Excel in pig feeds
ROVABIO EXCEL in pig feeds
Rovabio EXCEL improves the nutritional value of feeds containing
arabinoxylans or glucans.
This improvement will be evaluated by digestibility tests
on feeds with or without Rovabio.
The consequences on growth performance will be measured by
zootechnical trials run in experimental stations.
|
Recommendation for incorporation
|
| |
Liquid
|
Powder
|
| Broilers |
181 ml/ton
|
45 g/ton
|
| Turkeys |
181 ml/ton
|
45 g/ton
|
| Laying hens |
181 ml/ton
|
45 g/ton
|
| Pigs |
181 ml/ton
|
45 g/ton
|
Excel improves the nutritional
value of pig feeds by increasing ileal digestibility of energy
Methodology of Ileal digestibility tests:
|
Principle of ileo-rectal shunt
|
Ileal digestibility
|
 |
- 8 ileo-rectal anastomozed growing pigs
- Experimental design: latin square
- 3.10- 3.97 lbs feed per day
- 5 days adaptation
- ileal juice collection: 48 h
|
Dose effect on the ileal digestibility of energy of pig feeds
(%):
| Type of feed |
Control
|
+ Excel 45 g/t
|
+ Excel 68 g/t
|
Wheat: 60 %
Barley: 9.7 %
Peas: 11.4 % |
70.1
|
67.5
+5.7
|
68.6
+7.2
|
Wheat: 32 %
Wheat feed: 17 %
Barley: 13.5 % |
66.8
|
62.5
+2.8
|
63.2
+3.9
|
[Trial PD 96-1] Metric Only
Effect of Rovabio™ Excel AP on the ileal digestibility of energy of a
wheat-based diet in ileo-rectal anastomozed pigs.
[Trial PD 97-4] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of a grower diet fed
to ileo-rectal anastomozed pigs.
Improvement of ileal digestibility of energy (wheat):
| Feed type |
Control
|
+ EXCEL
|
Wheat: 60.5 %
Triticale: 6 %
Wheat bran: 5 % |
1330+ 36
|
+23 kcal/lb
|
Wheat: 50 %
Barley: 5 % |
1300+ 19
|
+17 kcal/lb
|
Wheat: 70 %
Barley: 5 %
Pea: 5 % |
1367+ 27
|
+14 kcal/lb
|
Wheat: 70 %
Barley: 5 %
Pea: 5 % |
1429+ 40
|
+27 kcal/lb
|
[Trial PD 97-2] Metric Only
Effect of Rovabio™
Excel LC on the feed digestibility of wheat-based diet fed
to ileo-rectal anastomozed pigs.
[Trial PD 97-3] Metric Only
Effect of ROVABIO™ Excel LC on Ileal Digestible Energy
of a wheat-based diet in pigs.
[Trial IDE 18-1] Metric Only
Effect of ROVABIO™ Excel LC on Ileal Digestible Energy
of a wheat-based diet in pigs.
[Trial IDE 18-6] Metric Only
Effect of ROVABIO™ Excel AP on Ileal Digestible Energy
of a wheat-based diet in pigs.
Improvement of ileal digestibility of energy (barley):
| Feed type |
Control
|
+ EXCEL
|
Barley: 60 %
Wheat: 13 % |
1332+ 16
|
+44 kcal/lb
|
Barley: 45 %
Wheat: 5 %
Wheat bran: 5.6 % |
1294+ 15
|
+28 kcal/lb
|
Barley: 45 %
Wheat: 15 %
Oat: 25 % |
1370+ 35
|
+18 kcal/lb
|
Barley: 48 %
Wheat: 20 % |
1368+ 42
|
+50 kcal/lb
|
[Trial PD 96-2] Metric Only
Effect of Rovabio™ Excel LC on the feed digestibility of barley-based diet
fed to ileo-rectal anastomozed pigs.
[Trial PD 97-6] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of barley-based diet
fed to ileo-rectal anastomozed pigs.
[Trial PD 98-1] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of barley-based diet
fed to ileo-rectal anastomozed pigs.
[Trial IDE 98-4] Metric Only
Effect of Rovabio™ Excel LC on the ileal digestibility of a grower barley
and wheat -based diet in ileo-rectal anastomozed pigs.
Improvement of ileal digestibility of energy (wheat and barley):
| Feed type |
Control
|
+ EXCEL
|
Wheat: 32 %
Barley: 13.5 %
Wheat feed: 27.5 % |
1229+ 22
|
+38 kcal/lb
|
Wheat: 22.6 %
Barley: 20 %
Wheat feed: 31 % |
1174+ 32
|
+26 kcal/lb
|
Wheat: 30 %
Barley: 30 %
Corn: 5 % |
1231+ 64
|
+27 kcal/lb
|
[Trial PD 97-4] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of a grower diet fed
to ileo-rectal anastomozed pigs.
[Trial PD 97-5] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of a finisher wheat
feed-based diet fed to ileo-rectal anastomozed pigs.
[Trial IDE 18-3] Metric Only
Effect of Rovabio™ Excel LC on Ileal Digestible Energy
of a wheat and barley-based diet in pigs.
Summary of Ileal digestible energy improvements:
| Feed type |
Number
|
Mean
|
Minimum
|
Maximum
|
| Wheat-based diets |
4
|
+44.5
|
31
|
61
|
| Barley-based diets |
4
|
+77
|
39
|
111
|
| Mixed wheat/barley diets |
4
|
+66.5
|
58
|
84
|
Improvement of (true) amino acid digestibility from 1 to
1.5 %:
| Feed Type |
Nitrogen %
|
Lysine %
|
Methionine %
|
Barley: 45 %
Wheat: 5 %
Wheat bran: 5.6 % |
86.5 
87.4 |
91
92 |
89
90.6 |
Barley: 45 %
Wheat: 15 %
Oats: 25 % |
85.6
86.9 |
91.5
92.5 |
89.9
91.5 |
Wheat: 60.6 %
Triticale: 5 %
Wheat bran: 5 % |
86.3
87.7 |
90.8
91.8 |
89.2
90.2 |
[Trial PD 97-6] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of barley-based diet
fed to ileo-rectal anastomozed pigs.
[Trial PD 98-1] Metric Only
Effect of Rovabio™ Excel AP on the feed digestibility of barley-based diet
fed to ileo-rectal anastomozed pigs.
[Trial PD 97-2] Metric Only
Effect of Rovabio™ Excel LC on the feed digestibility of wheat-based diet
fed to ileo-rectal anastomozed pigs.
From ileal digestible
energy to standard (fecal) digestible energy
Excel efficacy is not confirmed by Fecal digestible energy
comparison in pig feeds.
Methodology for Fecal digestible Energy (INRA):
- Animals in digestibility cages
- 6/7 castrated pigs per treatment
Piétrain x (Large White x Ladrace)
30.9 lb live weight at the beginning
- Feed intake adjusted to weight gain
- Timing:
- 7 days adaptation to cages
- 10 experimental days with
- total collection of feces and urine
Approximate relationship between ileal digestible energy
and standard (fecal) digestible energy:
|
Effect of EXCEL
|
|
Ileal Energy
|
Fecal Energy
|
|
+ 27 Kcal/lb
+ 25 Kcal/lb
+ 23 Kcal/lb
|
+ 16 Kcal/lb
+ 11 Kcal/lb
+ 5 Kcal/lb
|
Net Energy should benefit from higher ileal energy because
of better conversion (K)
Methodology for Net Energy evaluation (INRA)
- Animals in digestibility cages and respiratory chambers
Same experimental design as fecal digestibility of
energy
|
Additional measurements during the 10
experimental days:
- 3 first days: outside of respiratory chamber
- feed intake - excreta and urine collection
- 6 following days: respiratory chamber:
- feed intake - excreta + urine collection
- respiratory exchange (CO2, O2, CH4)
- physical activity
- last day: pigs are fasted:measurement of respiratory
exchange and physical activity
|
Excel efficacy is confirmed by increasing Net Energy in pig
feeds
Ileal Digestible and Net Energy measured on 2 feeds:
| Feed composition |
High energy
|
Low energy
|
| Wheat |
70
|
30
|
| Barley |
5
|
30
|
| Corn |
-
|
-
|
| Soybean meal 44 |
13.7
|
14
|
| Pea |
5
|
5
|
| Sunflower meal |
-
|
7
|
| Meat and bone meal |
-
|
3
|
| Vegetable oil |
-
|
2.2
|
|
|
|
| Calculated analysis |
|
|
| Net Energy (kcal/lb) |
1084
|
1005
|
| Crude protein % |
16.6
|
17.5
|
Lysine %
|
1.01
|
0.89
|
| Methionine % |
0.34
|
0.26
|
Ileal Digestible and Net Energy measured on 2 feeds:
Validation in several experimental farms
- France: INRA - Saint Gilles
-
Customer trial
- Russia: Academy of Agricultural Science
- Australia: Customer trial
France: INRA Saint Gilles
Grower and finisher diets based on wheat:
Experimental design
- 276 castrated male pigs (Large White X Pietrain)
- Restricted feeding:
90 % ad libitum
- 3 levels of Excel:
0
0.181 l/t
0.272 l/t
|
Composition
|
Grower
|
Finisher
|
| Wheat (cartaya) |
70
|
70
|
| Barley |
5
|
5
|
| Soybean meal 44 |
13.7
|
13.3
|
| Pea |
5
|
5.2
|
| Vegetable oil |
2.1
|
2.2
|
| L Lysine HCl |
0.38
|
0.26
|
| DL Methionine |
0.12
|
0.08
|
| L Threonine |
0.19
|
0.12
|
|
|
|
| Net Energy (Kcal/lb) |
1084
|
1084
|
Protein %
|
16.4
|
16
|
| Digestible lysine % |
0.9
|
0.8
|
Digestible methionine %
|
0.32
|
0.28
|
Zootechnical results
Period 14 - 47 lb
| |
Control
|
+ 0.181 l/t
|
+ 0.272 l/t
|
| Feed intake (lb/day) |
1.035
|
1.035
|
1.036
|
| Weight gain (lb/day) |
0.427 a
|
0.446 b
|
0.444 b
|
| Feed conversion |
2.43 a
|
2.33 b
|
2.34 b
|
[Trial PP 97-3] Metric Only
Effect of Rovabio™ Excel LC on the performance of growing/finishing
pigs fed a 70% wheat based diet.
France: Customer trial
Experimental plan:
- 21 castrated pigs per
treatment
- Feeding:
95 % ad libitum
- 2 types of feed:
- without pea
- with pea
- 2 levels of Excel:
- 0
- 45 g/t
|
Grower feed based
on wheat
Period 55 - 143 lb
|
| Composition |
w/o pea
|
with pea
|
| Wheat |
60
|
42.3
|
| Pea |
-
|
25
|
| Wheat bran |
11.3
|
12
|
| Soybean meal |
4.8
|
-
|
| Canola meal |
8
|
8
|
| Sunflower meal |
8
|
5.2
|
| Fat |
1.5
|
1.3
|
| Molasses |
3
|
3
|
|
|
|
| Crude Protein % |
17.6
|
16.9
|
| Fat % |
3
|
2.8
|
| Fiber |
5
|
5.9
|
|
Zootechnical results
Period 55 - 143 lb
|
| |
Control
|
+ Excel
|
| Feed intake (lb/day) |
4.16
|
4.24
|
| Weight gain (lb/day) |
1.87 a
|
1.95 b
|
| Feed conversion |
2.23
|
2.17
|
[Trial PC 00-10] Metric Only
Effect of Rovabio™ Excel LC on the performance of growing/finishing
pigs fed high wheat - or wheat/pea-based diets.
Russia: Academy of Agricultural Sciences
Experimental design
- 3 x 2 x 10 male pigs
- 2 levels of Excel AP
- 0 and 45 g/t
|
Composition
|
Starter
|
Grower
|
Finisher
|
| Barley |
20
|
35
|
35
|
| Wheat |
30
|
35
|
35
|
| Corn |
20
|
-
|
-
|
| Wheat Bran |
-
|
-
|
10
|
| Soybean meal |
5
|
2
|
2
|
| Sunflower meal |
10
|
10
|
-
|
| Canola meal |
13
|
16.8
|
16.8
|
|
|
|
|
| D. E. (MJ/lb) |
5.5
|
5.3
|
5.4
|
Protein %
|
20.3
|
16.7
|
14.2
|
| Lysine % |
1.1
|
0.77
|
0.59
|
| Methionine |
0.34
|
0.26
|
0.22
|
|
Zootechnical results
Period (60 to 220 days) 31 - 265 lb
|
| |
Control
|
+ Excel
|
| Final weight (lb) |
241
|
265
|
| Feed intake (lb/day) |
4.98
|
5.49
|
| Weight gain (lb/day) |
1.31
|
1.46
|
Australia: Customer trial
Feeds with low or high millmix inclusion
Experimental design
- 132 male pigs per treatment
(six pens of 22 males pigs)
- 2 x 2 factorial design:
- Diets normal or high inclusion millmix
- ROVABIO Excel level:
0 and 45 g/t
|
Low level millmix
|
High level millmix
|
| Composition |
Grower
|
Finisher
|
Grower
|
Finisher
|
| Wheat |
73
|
72.6
|
42
|
40.7
|
| Barley |
-
|
10
|
-
|
-
|
| Peas |
5
|
-
|
5
|
-
|
| Millmix |
-
|
10
|
26.2
|
47.8
|
| Canola meal |
10
|
-
|
10
|
-
|
| Soybean meal |
1
|
-
|
2.9
|
-
|
| Meat meal |
5.6
|
3
|
5.6
|
2.3
|
| Blood meal |
2.3
|
1
|
1.6
|
0.7
|
| Tallow |
0.9
|
-
|
5
|
5
|
|
|
|
|
|
| Net Energy MJ/lb |
4.38
|
4.31
|
4.52
|
4.5
|
| Protein % |
18.6
|
13.7
|
18.8
|
13.9
|
| Lysine % |
1.11
|
0.75
|
1.14
|
0.8
|
| Methionine % |
0.33
|
0.23
|
0.34
|
0.24
|
Pig performance - growing period
| |
Low level millmix
|
High level millmix
|
| |
Control
|
+ Excel
|
Control
|
+ Excel
|
| Feed intake (lb/day) |
3.68
|
3.75
|
3.48
|
3.64
|
Weight gain (lb/day)
|
1.72
|
1.68
|
1.54
|
1.63
|
| Feed conversion |
2.14
|
2.23
|
2.27
|
2.24
|
| |
Without millmix
|
With millmix
|
| |
Control
|
+ Excel
|
Control
|
+ Excel
|
| Feed intake (lb/day) |
5.18
|
5.29
|
5.22
|
5.40
|
Weight gain (lb/day)
|
1.80
|
1.81
|
1.67
|
1.69
|
| Feed conversion |
2.88
|
2.93
|
3.13
|
3.20
|
[Trial PP 99-9] Metric Only
Effect of Rovabio™ Excel AP on the performance of pigs fed high
percentage of wheat middling.
Strategy for using Excel
in pig feeds
Adisseo suggestions:
- Adding the enzymes on top of the feed:
- To improve feed efficiency.
- To add flexibility at the formulation
- To improve sanitary conditions.
or:
- Decreasing feed specifications for net energy and digestible
amino-acid by 1 to 1.5 %:
- To reduce the cost
- To improve sanitary conditions
|
