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Calculate diet digestibility contribution for a ration component

Source: R/core_model_ration_quality.R
calc_ration_digestibility.Rd

Applies species-specific digestibility parameters to a ration composition share to compute the contribution of a single feed component to total diet digestibility.

Usage

calc_ration_digestibility(
  species_short,
  feed_ration_fraction,
  feed_digestibility_fraction_ruminant = NA_real_,
  feed_digestibility_fraction_pigs = NA_real_
)

Arguments

species_short

Character. Code identifying the livestock species. Supported values include:

  • PGS: pigs

  • CML: camels

  • CTL: cattle

  • BFL: buffalo

  • SHP: sheep

  • GTS: goats

feed_ration_fraction

Numeric. Proportion of a specific feed component in the total ration, expressed as its fraction of diet dry matter intake (fraction). Within each herd_id and cohort, proportions should sum to 1.

feed_digestibility_fraction_ruminant

Numeric. Digestibility of a feed component for ruminants, expressed as the ratio of digestible energy to gross energy content (fraction).

feed_digestibility_fraction_pigs

Numeric. Digestibility of a feed component for pigs, expressed as the ratio of digestible energy to gross energy content (fraction).

Value

Numeric. Contribution of the feed component to total diet digestibility (fraction).

Details

The digestibility contribution uses the animal-specific digestibility ratio:

  • Ruminants (CTL, BFL, CML, SHP, GTS): feed_ration_fraction * feed_digestibility_fraction_ruminant

  • Pigs (PGS): feed_ration_fraction * feed_digestibility_fraction_pigs

This function is part of the run_ration_quality_module().

See also

run_ration_quality_module