RUFAS.biophysical.animal.ration.calf_ration_manager module

class RUFAS.biophysical.animal.ration.calf_ration_manager.CalfMilkType(*values)

Bases: Enum

Calf milk types.

WHOLE = 'whole'

REPLACER = 'replacer'

class RUFAS.biophysical.animal.ration.calf_ration_manager.CalfRationManager

Bases: object

Calf ration formulation is distinct from other animal types, and managed separately. Calf nutrition requirements are calculated based on the calf’s nutritional intake.

milk_type: CalfMilkType

classmethod set_milk_type(milk_type: CalfMilkType) → None

Set the milk type for the calf.

Parameters

milk_typeCalfMilkType

The type of milk being fed to the calf.

classmethod calc_requirements(days_born: int, body_weight: float, temp: float, animal_intake: dict[str, int | float]) → dict[str, float]

Calculate dietary intake and nutrient requirements for the calf.

Parameters

days_bornint

Number of days since the calf was born.

body_weightfloat

Body weight of the calf (kg).

tempfloat

Average temperature of the simulation day (C).

animal_intakedict

Whole milk, replacer, and starter intake amounts and nutritional content.

Returns

dict[str, float]

Dictionary of requirement values and methods.

References

RuFaS’ NRC Requirements Scientific Documentation [A.1B.F] through [A.1B.H]

classmethod calc_intake(birth_weight: float, body_weight: float, wean_day: int, wean_length: int, available_feeds: list[NASEMFeed | NRCFeed], nutrient_standard: NutrientStandard) → dict[str, float]

Calculates the amounts of whole milk, milk replacer, and starter that a calf consumes.

Parameters

birth_weightfloat

Birth weight of the calf (kg).

body_weightfloat

Body weight of the calf (kg).

wean_dayint

Number of days after birth that calf is fully weaned from milk (or replacer).

wean_lengthint

Wean length of the calf (days).

available_feedslist[NASEMFeed | NRCFeed]

List of feeds available to the calf.

nutrient_standardNutrientStandard

Enum member indicating whether the NASEM or NRC nutrition standard is being used.

Returns

dict[str, float]

Amounts of feed taken in by calf and nutritive content of the intake.

References

RuFaS’ NRC Requirements Scientific Documentation [A.1B.A] through [A.1B.E]