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Effect of a bovine colostrum supplementation in piglet diet at - - PowerPoint PPT Presentation
Effect of a bovine colostrum supplementation in piglet diet at - - PowerPoint PPT Presentation
Effect of a bovine colostrum supplementation in piglet diet at weaning on growth performances, food ingestion and faecal E. coli concentrations Boudry Christelle Introduction Introduction Weaning stress: Nutritional Environmental
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Introduction
Weaning stress:
- Nutritional
- Environmental
- Social
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Introduction
Weaning stress
Growth promoters:
- Antibiotics → 2006
- Alternatives:
→ efficient → competitive
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Introduction
Weaning stress Growth promoters
Bovine colostrum:
- Essential nutrients
- Growth factors
- Anti-microbial substances
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Material and Methods
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Material and Methods
Animals
- 15 litters of newly-weaned piglets
- 96 piglets (48 M and 48 F)
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Material and Methods
Treatments
- Commercial starter diet
- 2 supplements
– Bovine colostrum serum = "Colostrum" treatment – Milk lactoserum = "Control" treatment
- Incorporation rates
– D 0 - D 14 : 2 % – D 14 - D 28 : 1 %
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Material and Methods
Animal distribution
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96 48 "Light" 48 "Heavy"
Colostrum Control Colostrum Control 12
15 litters
12 12 12 12 12 12 12
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Material and Methods
Sampling
D0 D7 D14 D21 D28
Weight Weight Weight Weight Weight Blood Blood Blood Blood Blood
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Material and Methods
Sampling
D-1 D0 D5 D7 D12 D14 D19 D21 D26 D28
Weight Weight Weight Weight Weight Blood Blood Blood Blood Blood
Faeces Faeces Faeces Faeces Faeces
Weighting : 48 piglets / treatment Blood sampling : 24 piglets / treatment Fresh Faeces : 20 piglets / treatment
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Material and Methods
Analyses:
- Faeces: E. coli (selective culture media)
- Blood: Cell counter: red & white corpuscles
Flow cytometer: T, B, Th and Tc cells ELISA: IgG, IgA and IgM
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Results
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Results
Growth performances
0,1 0,2 0,3 0,4 0,5 0,6 ADG (kg/day) 1 2 3 4 Week Control Colostrum
***
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Results
Food conversion ratio
0,5 1 1,5 2 2,5 3 3,5 4 FCR 1 2 3 4 Week
Control Colostrum
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Results
Faecal E. coli population
6 6,5 7 7,5 8 8,5 9 D-1 D5 D12 D19 D26 Day
- E. coli
(cfu log10/g faeces)
Control Colostrum
*
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100 200 300 400 500 600 700 800 D0 D7 D14 D21 D28 µg IgA/ml serum
Control Colostrum
Results
Serum IgA concentration
*
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Conclusions and Implications
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Conclusions
Bovine colostrum:
- growth performances
- FCR
- faecal E. coli population
- serum IgA concentration
D0 - D7 nutrient assimilation digestive troubles
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Implications
In the future: