Energy, amino acids and phosphorus values for pigs

67 Pages·2008·5.06 MB·English

EvaPig
®
Evaluation of Pig feeds
Introduction
Energy, amino acids and
Net energy
phosphorus values for pigs
Amino acids
Phosphorus
Main menu
Ingredient table
Ingredient creation
Diet list
Diet creation
Diet graphs
Energy calculator
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EvaPig Tutorial 1.0.0
Welcome to EvaPig®!
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 EvaPig® is a calculator of energy, amino
Net energy acids and phosphorus values of ingredients
and diets for growing and adult pigs.
Amino acids
 EvaPig® includes the chemical composition
Phosphorus
and nutritive values for the pig from about
100 reference ingredients, mostly derived
Main menu
from the INRA-AFZ Tables.
Ingredient table
 You can create new ingredients either by
copying and modifying the reference
Ingredient creation
ingredients, or by using your own data.
Diet list
 You can also create and calculate nutritive
Diet creation values of complete diets either by mixing
ingredients or by providing a chemical
Diet graphs
composition.
Energy calculator
 Specific and generic equations will calculate
www.evapig.com energy, amino acids and phosphorus
values.
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Challenges in pig feeding
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Feed
accounts for
Net energy The main
> 50% of
component
Amino acids
the cost of
of feed cost
pig
Phosphorus Many is energy
production
ingredients
Feeds
Main menu are
impact upon
available
technical
Ingredient table
and
Ingredient creation economic
results
Ingredients
Diet list
have variable
Diet creation
compositions Environmental
Animals, farm concerns
Diet graphs
conditions and about the
Energy calculator production excretion of
targets are N, P etc.
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variable
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Why use EvaPig®?
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 EvaPig® provides Net energy (NE),
Net energy
standardised amino acid digestibility
Amino acids
and phosphorus digestibility values.
Phosphorus
 Because these values are consistent
Main menu
with animal requirements, using them
Ingredient table
in formulation is highly beneficial:
Ingredient creation
 Better ranking of ingredients
Diet list
 More efficient use of feed nutrients
Diet creation
 Lower feed costs
Diet graphs
 Reduced excretion of nitrogen and
Energy calculator
phosphorus into the environment
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Use EvaPig® to calculate

nutritional values
Tables give values
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for “typical”
Net energy
ingredients.
Amino acids
Phosphorus
Main menu
Ingredient table
Ingredient creation
Diet list Soybean meal 48
But ingredients have
Diet creation
variable compositions
Diet graphs
Energy calculator
• EvaPig® uses the ingredients’
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chemical composition to calculate
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their nutritional values.
EvaPig® and pig nutrient
requirements
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 EvaPig® generates diet nutritional
Net energy
values.
Amino acids
 Diet specifications should be adapted
Phosphorus
to animal requirements
Main menu
Ingredient table  These requirements are highly
variable according to bodyweight,
Ingredient creation
stage of production, sex, genotype,
Diet list
etc.
Diet creation
Diet graphs  EvaPig® proposes specific criteria in
Energy calculator diet characteristics for adaptation to
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EvaPig® and pig nutrient
requirements (examples)
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 You use DE or ME values and you want to
Net energy implement the NE system of EvaPig®:
 NE requirements can be estimated as
Amino acids
0.71 x DE or 0.75 x ME.
Phosphorus
 Optimal amino acid profile (ideal protein):
Main menu  EvaPig® calculates the amino acid profile
(digestible amino acid as % of digestible lysine)
Ingredient table
of the diet.
Ingredient creation  The protein:energy ratio is highly variable
between pigs according to physiological stage,
Diet list
body weight, etc.
Diet creation  EvaPig® provides the ratio between digestible
lysine and NE, which is the best indicator of the
Diet graphs
protein:energy ratio.
Energy calculator
 It is important to get an optimal ratio
between Ca and digestible phosphorus (Pd):
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 EvaPig® calculates the Ca:Pd ratio of the
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diet
Introduction
Net energy
NNeett eenneerrggyy
Amino acids
Phosphorus
Standardised
Main menu
amino acids
Ingredient table
Ingredient creation
Diet list
Phosphorus
Diet creation
Diet graphs
digestibility
Energy calculator
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Energy utilization
Introduction Gross Energy (GE)
NNeett eenneerrggyy
Amino acids
Fecal energy
Phosphorus
Digestible Energy (DE)
Main menu
Ingredient table
Urinary and gas energy
Ingredient creation
Diet list
Metabolizable Energy (ME)
Diet creation
Diet graphs
Heat increment
Energy calculator
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Net Energy (NE)
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Net Energy
Introduction
 EvaPig® includes Digestible,
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Metabolisable and Net Energy
Amino acids
values for the main feed
Phosphorus
ingredients.
Main menu
 Different energy values are
Ingredient table
given for the growing pig and for
Ingredient creation
the adult pig.
Diet list
Diet creation  EvaPig® makes it easy to
Diet graphs calculate and store energy
Energy calculator
values for new ingredients and
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diets.
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