1. FEEDING THE FINISHING PIG

2. 60% of feed cost is in finishing
0.1 FCR around £10/tonne feed cost or
 1.6p/Kg
0.1 FCR  5%

3. Two Studies Pig weight & diet change - Performance & change of diet
Variation & change of diet
Wet vs Dry feeding

4. PERFORMANCE AND CHANGE OF DIET

5. Growth Curves of Pigs

6. Methods Five treatments Eight replicates
15 pigs in pen balanced for weight and gender
Diet
Grower CP 18.5% Lysine 1.25% DE 14.6 MJ/kg
Finisher CP 17.0% Lysine 1.0% DE MJ/kg

7. Treatments Transfer weight from Grower to Finisher 40 50 60 70 +ve
40kg
50kg
60kg
70kg
Only grower – no change of diet

8. Performance of pigs moving from grower to finisher at different weights40 50 60 70
+ve
Sed
Quad
Feed Intake (g/d)
Growth rate (g/d)
FCR
2454
975
2.52
2475
998
2.48
2567
1061
2.42
2495
1031
2.41
2458
1048
2.35
36.38
21.95
0.055 NS
<0.05
<0.01
P2 (mm)
13.8
13.9
13.2
14.3
0.46

9. Nutrient intake comparison40
+ve
Growth Rate (g/d)
FCR
975
2.52
1048
2.35

10. Nutrient intake comparison40
+ve
Growth Rate (g/d)
FCR
975
2.52
1048
2.35
Feed intake (g/d)
Energy Intake (MJ/d)
Lysine Intake (g/d)
2454
33.8
24.5
2458
35.9
30.7

11. Growth Curves of Pigs

12. Economics 40 50 60 70 +ve Start Wt. (kg) Diet change End Wt. (kg)
38.77
115.4
35.87
50.18
115.8
36.39
62.49
120.4
36.45
72.69
117.8
37.28 NA
119.12
Grower
Growth Rate (g/d)
FCR
1101
1.85
1135
1.84
1060
2.11
1048
2.35
Finisher
Grower rate (g/d)
975
2.52
993
2.58
1040
2.64
1018

13. Economics 40 50 60 70 +ve Start Wt. (kg) Diet change End Wt. (kg)
38.77
115.4
35.87
50.18
115.8
36.39
62.49
120.4
36.45
72.69
117.8
37.28 NA
119.12
Grower
Growth Rate (g/d)
FCR
1101
1.85
1135
1.84
1060
2.11
1048
2.35
Finisher
Grower rate (g/d)
975
2.52
993
2.58
1040
2.64
1018
Cost/kg gain
50.4p
50.0p
49.6p
50.9p
54.0p
* £30 differential between grower and finisher

14. VARIATION AND CHANGE OF DIET

15. Design
Factorial design: High weight variance in pen Low weight variance in pen Single diet: CP 17%, Lysine 1.0%, DE 14.0 MJ/kg Phase diet: wks CP18%, Lysine 1.1%, DE 14.2 MJ/kg 18 to slaughter CP16%, Lysine 0.9%, DE 13.8MJ/kg
Single diet
Phase (2 diets)
Single diet
Phase (2 diets)

16. Performance of pigs on single or two phase diets with high or low weight variance
Single Diet
High weight variance
Low weight variance
Low weight
variance
S.e.d. P
12 week Wt. (kg)
Final Wt. (kg)
40.8
116
40.9
114
41.3
113
40.5
117
0.231 NS
Feed Intake (g/d)
Growth Rate (g/d)
FCR
2231
910
2.45
2136
893
2.40
2190
896
2195
922
2.38
61.69
24.94
0.046

17. Variation using single or phase diets

18. WET Vs DRY FEEDING

19. 8 Replicates of 15 pigs
Start weight 35 kg
Diet CP 17.5% Lysine 1.0% DE 13.8 MJ/kg
Water ratio 3:1

20. Finishing Pens

21. Performance on Wet & Dry Feed

22. Performance of Wet vs Dry
S.e.d. P
Weight (kg)
Day 0
Finish
36.5
109.6
36.6
107.0
1.39
1.78 NS
Feed Intake (g/d)
Growth Rate (g/d)
FCR
2458
895
2.75
2255
854
2.64
64.07
21.93
0.08
<0.01
<0.1

23. Slaughter performance of Wet vs Dry
S.e.d. P
Live finish weight (kg)
Probe (mm)
Cold weight (kg)
KO%
110.9
11.6
86.40
77.98
109.3
11.7
87.32
79.94
1.626
0.460
1.003
0.804 NS
<0.05

24. Slaughter performance of Wet vs Dry
S.e.d. P
Live finish weight (kg)
Probe (mm)
Cold weight (kg)
KO%
110.9
11.6
86.40
77.98
109.3
11.7
87.32
79.94
1.626
0.460
1.003
0.804 NS
<0.05
Carcass FCR
3.53
3.23
0.084
<0.001

25. Economics of Wet Vs Dry Wet Dry Start weight (kg) End weight (kg) KO%
36.5
109.6
78.0
36.6
107.0
79.9
Carcass gain (kg)
Carcass FCR
57.0
3.53
56.3
3.23
Value of carcass £1.15
£65.55
£64.75
Cost per kg carcass gain
70.6p
66.5p
* £6 added to dry for pelleting costs

26. Conclusions It pays to feed grower to 60 kg liveweight
Diet change does not reduce variation
Pigs grow faster on ad lib wet feeding
Carcass FCR is 8% better on dry pellets vs wet

27. ACKNOWLEDGEMENTS