Summary of results Supplementation of the probiotic in broiler diets during a period of six weeks allows significant reduction of ammonia emissions (NH3
) compared with non-supplemented diets, regardless of nutrient concentration. This effect can be
explained by two major benefits: ● Protection of the top of the villi (GalliPro creates microcolonies in the gut) prolongs and protects this very important location for intestinal absorption
● By releasing enzymes locally, close to the brush broth, the probiotic improves the availability of indigestible nutrients like complex proteins and carbohydrates, thus improving the digestibility of these key elements of the feed.
Positive impact on the environment The benefits of including the Bacillus subtilis from Chr. Hansen in broiler rations allow for reduced ammonia emissions (NH3
What can we expect? A decreasing numerical trend (P=0.059) of NH3
gas emission
from the excreta was observed for birds fed ME- and CP- reduced diets compared with control diets. Birds fed the Bacillus based probiotic supplemented diets showed significantly reduced NH3
those fed diets without the probiotic.
in their excreta. It is well known that Bacillus based probiotic has the ability to colonise the top of the intestinal villi with two major benefits to the bird’s intestine: protection of villi and releasing different substances. These two mechanisms lead to better use of nutrients by birds. There is less non – digested waste excreted by bird. This results in double benefits: less nutrients are wasted (excreted), and less nutrients leftovers (like non digested protein) for the pathogenic bacteria growth are available. Reducing this waste not only makes an economic impact on animal production (more nutrients available for birds to grow), but also allows to reduce gas emission. This can impact the environment, as well as birds and human (farm workers) welfare.
emissions (P<0.05) compared to References are available on request
Table 1- Diet formulation for each metabolisable energy (ME) and crude protein (CP) level in the feed of starter and grower phase broiler (as fed basis).
Starter (0-14 d)
Ingredient, % 100% ME 98.8% ME 97.6% ME and CP
and CP and CP (-Pro) (+Pro) (-Pro) (+Pro) (-Pro) (+Pro)
23.87 23.87 23.59 23.59 23.3 23.3 6.4
Grower (14-21 d)
100% ME 98.8% ME 97.6% ME and CP
and CP and CP (-Pro) (+Pro) (-Pro) (+Pro) (-Pro) (+Pro)
Calculated Composition ME, kcal/kg 3,000 3,000 2,964 2,964 2,928 2,928 3,100 3,100 3,063 3,063 3,026 3,026 CP, % Fat, % Lys, % Met, % Trp, % P, %
6.4 5.78 5.78 5.15 5.15 7.36 7.36 6.71 6.71 6.05 6.05 1.42 1.42 1.42 1.42 1.42 1.42 1.27 1.27 1.27 1.27 1.27 1.27 0.61 0.61 0.62 0.62 0.62 0.62 0.55 0.55 0.56 0.56 0.56 0.56 0.24 0.24 0.24 0.24 0.24 0.24 0.21 0.21 0.21 0.21 0.21 0.21 0.6
0.6 0.6 Ca, % 1 1 1 1 1 1 0.9 0.9 0.9 0.9 0.9
0.6 0.61 0.61 0.55 0.55 0.55 0.55 0.55 0.55 0.9
21.87 21.87 21.61 21.61 21.35 21.35 Finisher (21-42 d)
100% ME 98.8% ME and CP
and CP
97.6% ME and CP
(-Pro) (+Pro) (-Pro) (+Pro) (-Pro) (+Pro) 3,200 3,200 3,163 3,163 3,123 8.8 8.12 8.12 7.41 0.54w 0.5 0.85
1.17 1.17 1.17 1.17 1.17 0.53 0.53 0.54
0.5 0.5 0.85 0.85 0.85 ▶ SUSTAINABILITY AND WELFARE | OCTOBER 2020 3,123
20.28 20.28 20.05 20.05 19.8 19.8 8.8
0.54
0.19 0.19 0.19 0.19 0.2 0.2 0.5
7.41 1.17 0.54
0.5 0.5 0.85
0.85 35
)
PHOTO: SHUTTERSTOCK
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
