RUFAS.routines.animal.manure.dry_cow_manure_excretion module#
- RUFAS.routines.animal.manure.dry_cow_manure_excretion.manure_calculations(body_weight: float, daily_milk_production: float, fecal_phosphorus: float, urine_phosphorus_required: float, methane_model: str, metabolizable_energy_intake: float, nutrient_amount: Dict[str, float], nutrient_conc: Dict[str, float]) Tuple[float, AnimalManureExcretions]#
Calculates the manure excretion values for a non-lactating cow with information from the ration formulation.
Parameters#
- ration_formulationDict[str, float]
Dictionary that stores the calculated ration.
- feedDict[str, float]
A Feed object that contains information about the available feeds.
- body_weightfloat
Body weight of the current animal, kg.
- daily_milk_productionfloat
Daily milk production of the current animal, kg.
- fecal_phosphorusfloat
Amount of fecal phosphorus excreted by the current animal, g.
- urine_phosphorus_requiredfloat
Amount of phosphorus required for urine production, g.
- methane_modelstr
Methane model used for methane emission calculations, including Mills, IPCC.
- metabolizable_energy_intakefloat
Metabolizable energy intake, Mcal/kg dry matter.
- nutrient_amountDict[str, float]
Amounts of nutrients in pen ration, calculated per animal, see Notes section for units.
- nutrient_concDict[str, float]
Concentrations of nutrients in pen ration, calculated per animal, percentages.
Returns#
- float
Total amount of phosphorus excreted by the given animal, g.
- AnimalManureExcretions
- A dictionary that contains the manure excretion values as specified
in the AnimalManureExcretions class definition.
Notes#
- nutrient_amount_units = {
“dm”: “kg/animal”, “CP”: “percent of DM”, “ADF”: “percent of DM”, “NDF”: “percent of DM”, “lignin”: “percent of DM”, “ash”: “percent of DM”, “phosphorus”: “percent of DM”, “potassium”: “percent of DM”, “N”: “percent of DM”,
}