Technonews:Use of pronutrients with an immunostimulant activity in aviculture
In a trial carried out in XiangYai, HeBei (China) in broiler chickens, the effects of a product composed of pronutrients with an immunostimulant activity on productive performance and the immune response were evaluated.
BATCHES (12000 broilers/batch)
• BATCH 1 (Pronutrients): Natural immunobooster (pronutrients) through drinking water at 0.25 ml/L. Administration on days 9 – 12 and 20 – 23, for 12 hours
• BATCH 2 (control): standard diet without immunoboosters
VACCINATION PROGRAM
|
Day |
Vaccine | Administration route |
Doses |
Comments |
|
1 |
IBD |
Injection |
1 dose |
Hatchery |
|
1 |
ND+IB |
Aerosol |
1 dose |
Hatchery |
| 1 |
ND+H9 |
Injection |
0.15 mL |
Hatchery |
|
9 |
ND+IB |
Eye dropping |
1 dose | |
| 20 | ND | Drinking water |
2 doses |
|
RESULTS
PRODUCTIVE PARAMETERS
|
Batches |
Final weight (kg) | FCR | Survival rate | Efficiency index |
|
Batch 1 |
2.95 | 1.57 | 97.5% |
446.8 |
|
Batch 2 |
2.86 | 1.59 | 96.3% |
422.5 |
| Difference | +0.09 | -0.02 | +1.2% | +16.3 |
Moreover, on day 35th the control group (batch 2) showed a reduction of feed intake and a mortality increase.
ANTIBODY TITERS
|
Disease |
Days |
Batch |
Mean |
|
H9 |
25 |
Pronutrients |
2.2 |
|
Control |
2.0 |
||
|
33 |
Pronutrients |
2.9 |
|
|
Control |
2.4 |
||
|
ND |
25 |
Pronutrients |
2.8 |
|
Control |
2.6 |
||
|
33 |
Pronutrients |
4.6 |
|
| Control |
3.8 |
CONCLUSIONS
It has been proved that the administration of pronutrients with an immunobooster activity to broilers improves the following productive parameters:
• Final weight (+4.24%)
• Feed Conversion Rate (-1.25%)
• Efficiency index (+16.3 points)
• Mortality (-1.2%)
In addition, there is a higher immune response against vaccination, which is seen by a greater mean antibody titer.
Pronutrients with an immunostimulant activity are commercialized under the name Alquernat Immuplus.
