RUFAS.routines.manure.pen_manure.manure_manager_pen module

class RUFAS.routines.manure.pen_manure.manure_manager_pen.ManureManagerPen(pen: PenManureData)

Bases: object

A modified version of the Pen class in the animal module. This class extracts some relevant information from the original Pen class and then adds some extra attributes that can be used in the gas emissions equations.

Attributes

idint

Pen id.

animals_in_penDict[int, AnimalBase]

A dictionary of animal ids as the key and animal objects as the value in this pen

num_animalsint

The number of animals in this pen.

num_lactating_cowsint

The number of lactating cows in this pen.

classes_in_penSet[str]

Set of unique animal classes in this pen.

animal_combinationAnimalCombination

An AnimalCombination enum that describes the current animal makeup in this pen.

housing_typestr

The type of housing used for this pen.

bedding_typestr

The type of bedding used for this pen.

pen_typestr

The type of pen used for this pen.

manure_handlerstr

The type of manure handler used for this pen.

manure_separatorstr

The type of manure separator used for this pen.

manure_separator_after_digestionstr

The second manure separator used on manure generated from this pen.

manure_treatmentstr

The type of manure treatment(s) used for this pen.

manure_densityfloat

The manure density used for calculating manure volume, kg/m^3.

manurePenManure

The manure data extracted from the animal module and converted to usable form for the manure module.

__init__(pen: PenManureData) → None

Initializes a pen object.

The newly created object does not store any reference to the passed-in argument and only performs a read on it.

Parameters

penPenManureData

A PenManureData instance containing all the manure information from a single pen.

property exposed_manure_surface_area_from_pen_type: float

Get the exposed manure surface area based on the pen type and whether there are lactating cows in the pen.

Notes

The exposed manure surface area is looked up from the following table:

Pen Type	Has Lac Cows	No Lac Cows
Freestall	3.5	2.5
Tiestall	1.2	1.0
Compost Bedded Pack Barn	5.0	3.0
Open Lot	5.0	3.0

Returns

float

Exposed manure surface area (\(m^2\)).

Raises

ValueError

If the pen type is not one of the following: “freestall”, “tiestall”, “compost bedded pack barn”, or “open lot”.