288
Effect of probiotic on energy and nutrient digestibility in growing pigs
The effect of the probiotic Probios Guard® (PG - Chr Hansen, Denmark), on metabolizable energy (ME) and digestibility of nutrients in growing pigs was investigated using 32 castrated male pigs (31.2 ± 4.7 kg), allotted in a randomized block design in a 2 x 2 factorial arrangement (diets with 3200 and 3300 kcal/kg EM with 0 or 400 g/t PG) with 8 replicates an 1 pig per experimental unit. The total experimental period was 10 days which included 5 days adaptation of pigs to the metabolism cages and 5 days for feces and urine collection. Digestible energy (DE), metabolizable energy (ME), metabolizable energy corrected for nitrogen (MEn), and the digestibility of nutrients: crude protein (CP), ether extract (EE), crude fiber (FD), neutral detergent fiber (NDF) and acid detergent fiber (ADF), mineral matter (MM), calcium (Ca) and phosphorus (P) were determined (Table 1). Higher values (P<0.05) of DE, ME and MEn were determined with 3300 ME+PG diet. The values of DE, ME and MEn determined using the 3300 EM diet were similar (P>0.05) to those obtained with the 3200 EM and 3200 EM+PG. The 3300 EM and 3300 EM+PG diets resulted in lower CP digestibility. The diet with 3300 EM+PG resulted in the highest digestibility of EE compared to the other diets. The greater digestibility coefficient values (P<0.05) of EE and ADF were obtained with the 3300 EM+PG diet. In conclusion, the addition of Probios Guard® in the diet with 3300 kcal/kg ME for growing pigs increased the ME value as a result of improved digestibility of ADF and EE.
Table 1- Energy and nutrient digestibility values in growing pigs fed diets with different ME levels supplemented or not with Probios Guard®
Item |
Treatments |
||||
3200 ME |
3200 ME+PG |
3300 ME |
3300 ME+PG |
CV% |
|
DE |
3494b |
3517b |
3588ab |
3623a |
2.369 |
ME |
3424b |
3459ab |
3523ab |
3564a |
2.745 |
MEn |
3322b |
3350b |
3427ab |
3466a |
2.556 |
CP |
18.26a |
18.68a |
16.44b |
16.37b |
3.11 |
EE |
3.05c |
3.22c |
4.28b |
4.89a |
11.10 |
CF |
4.88a |
5.02a |
4.35b |
4.15b |
9.84 |
NDF |
9.37 |
10.05 |
9.07 |
9.35 |
8.29 |
ADF |
4.21b |
4.28b |
4.75ab |
4.89a |
9.12 |
MM |
3.14ab |
3.50a |
2.69b |
2.85ab |
16.42 |
Ca |
0.34 |
0.41 |
0.39 |
0.37 |
22.46 |
P |
0.43 |
0.44 |
0.42 |
0.45 |
9.01 |
Means in the same row followed by different letters differ by SNK test (P<0.05).
Keywords: additives, metabolism, metabolizable energy