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Calculate daily fecundity rates

Source: R/core_model_demographic_herd.R
calc_fecundity_rates.Rd

Calculates the daily number of male and female offspring produced per adult female.

Usage

calc_fecundity_rates(parturition_rate, litter_size, birth_fraction_female)

Arguments

parturition_rate

Numeric. Average annual number of parturitions per female animal (# parturitions/adult female/year). A herd-level reproductive performance indicator calculated as the total number of parturitions (deliveries) occurring during a year divided by the number of adult females potentially able to give birth during that year.

litter_size

Numeric. Average number of offspring born per parturition (# offspring/parturition). This value can be calculated as the total number of offspring born divided by the total number of parturitions during the year.

birth_fraction_female

Numeric. Female birth fraction, defined as the probability that a newborn offspring is female (fraction). Can be calculated as the number of female offspring born divided by the total number of offspring born.

Value

A named list with two elements:

fecundity_female

Numeric. Daily number of female offspring per adult female (# offspring/day)

fecundity_male

Numeric. Daily number of male offspring per adult female (# offspring/day)

This function is part of the run_demographic_herd_module().

See also

run_demographic_herd_module()

Examples

calc_fecundity_rates(parturition_rate = 0.8, litter_size = 2, birth_fraction_female = 0.5)
#> $fecundity_female
#> [1] 0.002191781
#> 
#> $fecundity_male
#> [1] 0.002191781
#>