/// <summary>
/// Calculate conception rate for a female
/// </summary>
/// <param name="female">Female to calculate conception rate for</param>
/// <returns></returns>
public double ConceptionRate(RuminantFemale female)
{
double rate = 0;
bool isConceptionReady = false;
if (female.Age >= female.BreedParams.MinimumAge1stMating && female.NumberOfBirths == 0)
{
isConceptionReady = true;
}
else
{
double currentIPI = female.BreedParams.InterParturitionIntervalIntercept * Math.Pow((female.Weight / female.StandardReferenceWeight), female.BreedParams.InterParturitionIntervalCoefficient) * 30.64;
// calculate inter-parturition interval
currentIPI = Math.Max(currentIPI, female.BreedParams.GestationLength * 30.4 + female.BreedParams.MinimumDaysBirthToConception); // 2nd param was 61
double ageNextConception = female.AgeAtLastConception + (currentIPI / 30.4);
isConceptionReady = (female.Age >= ageNextConception);
}
// if first mating and of age or suffcient time since last birth/conception
if (isConceptionReady)
{
rate = ConceptionRateAsymptote / (1 + Math.Exp(ConceptionRateCoefficent * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept));
}
return(rate / 100);
}
/// <summary>
/// Calculate conception rate for a female
/// </summary>
/// <param name="female">Female to calculate conception rate for</param>
/// <returns></returns>
public double ConceptionRate(RuminantFemale female)
{
double rate = 0;
if (female.StandardReferenceWeight > 0)
{
rate = ConceptionRateAsymptote / (1 + Math.Exp(ConceptionRateCoefficent * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept));
}
rate = Math.Max(0, Math.Min(rate, 100));
return(rate / 100);
}
/// <summary>
/// Calculate conception rate for a female
/// </summary>
/// <param name="female">Female to calculate conception rate for</param>
/// <returns></returns>
public double ConceptionRate(RuminantFemale female)
{
double rate = 0;
if (female.StandardReferenceWeight > 0)
{
// generalised curve
switch (female.NumberOfBirths)
{
case 0:
// first mating
//if (female.BreedParams.MinimumAge1stMating >= 24)
if (female.Age >= 24)
{
// 1st mated at 24 months or older
rate = ConceptionRateAsymptote[1] / (1 + Math.Exp(ConceptionRateCoefficent[1] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[1]));
}
//else if (female.BreedParams.MinimumAge1stMating >= 12)
else if (female.Age >= 12)
{
// 1st mated between 12 and 24 months
double rate24 = ConceptionRateAsymptote[1] / (1 + Math.Exp(ConceptionRateCoefficent[1] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[1]));
double rate12 = ConceptionRateAsymptote[0] / (1 + Math.Exp(ConceptionRateCoefficent[0] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[0]));
// interpolate, not just average
double propOfYear = (female.Age - 12) / 12;
rate = rate12 + ((rate24 - rate12) * propOfYear);
}
else
{
// first mating < 12 months old
rate = ConceptionRateAsymptote[0] / (1 + Math.Exp(ConceptionRateCoefficent[0] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[0]));
}
break;
case 1:
// second offspring mother
rate = ConceptionRateAsymptote[2] / (1 + Math.Exp(ConceptionRateCoefficent[2] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[2]));
break;
default:
// females who have had more than two births (twins should count as one birth)
if (female.WeightAtConception > female.BreedParams.CriticalCowWeight * female.StandardReferenceWeight)
{
rate = ConceptionRateAsymptote[3] / (1 + Math.Exp(ConceptionRateCoefficent[3] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[3]));
}
break;
}
}
rate = Math.Max(0, Math.Min(rate, 100));
return(rate / 100);
}
/// <summary>
/// Set the conception details of the female provided
/// </summary>
/// <param name="female">Female to set details</param>
public void SetConceptionDetails(RuminantFemale female)
{
// if female can breed
if (NumberMonthsPregnant < female.BreedParams.GestationLength && female.Age - NumberMonthsPregnant >= female.BreedParams.MinimumAge1stMating)
{
int offspring = female.CalulateNumberOfOffspringThisPregnancy();
if (offspring > 0)
{
female.UpdateConceptionDetails(offspring, 1, -1 * NumberMonthsPregnant);
// report conception status changed
female.BreedParams.OnConceptionStatusChanged(new Reporting.ConceptionStatusChangedEventArgs(Reporting.ConceptionStatus.Conceived, female, clock.Today.AddMonths(-1 * NumberMonthsPregnant)));
}
}
}
/// <summary>
/// Create the individual ruminant animals using the Cohort parameterisations.
/// </summary>
/// <returns></returns>
public List <Ruminant> CreateIndividuals()
{
List <Ruminant> Individuals = new List <Ruminant>();
RuminantType parent = this.Parent.Parent as RuminantType;
// get Ruminant Herd resource for unique ids
RuminantHerd ruminantHerd = Resources.RuminantHerd();
if (Number > 0)
{
for (int i = 1; i <= Number; i++)
{
object ruminantBase = null;
if (this.Gender == Sex.Male)
{
ruminantBase = new RuminantMale();
}
else
{
ruminantBase = new RuminantFemale();
}
Ruminant ruminant = ruminantBase as Ruminant;
ruminant.ID = ruminantHerd.NextUniqueID;
ruminant.BreedParams = parent;
ruminant.Breed = parent.Breed;
ruminant.HerdName = parent.Name;
ruminant.Gender = Gender;
ruminant.Age = Age;
ruminant.SaleFlag = HerdChangeReason.None;
if (Suckling)
{
ruminant.SetUnweaned();
}
if (Sire)
{
if (this.Gender == Sex.Male)
{
RuminantMale ruminantMale = ruminantBase as RuminantMale;
ruminantMale.BreedingSire = true;
}
else
{
Summary.WriteWarning(this, "Breeding sire switch is not valid for individual females");
}
}
double u1 = ZoneCLEM.RandomGenerator.NextDouble();
double u2 = ZoneCLEM.RandomGenerator.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2);
ruminant.Weight = Weight + WeightSD * randStdNormal;
ruminant.PreviousWeight = ruminant.Weight;
if (this.Gender == Sex.Female)
{
RuminantFemale ruminantFemale = ruminantBase as RuminantFemale;
ruminantFemale.DryBreeder = true;
ruminantFemale.WeightAtConception = ruminant.Weight;
ruminantFemale.NumberOfBirths = 0;
}
Individuals.Add(ruminantBase as Ruminant);
}
}
return(Individuals);
}
/// <summary>
/// Create the individual ruminant animals using the Cohort parameterisations.
/// </summary>
/// <param name="number">The number of individuals to create</param>
/// <param name="initialAttributes">The initial attributes found from parent and this cohort</param>
/// <param name="ruminantType">The breed parameters if overwritten</param>
/// <returns>List of ruminants</returns>
public List <Ruminant> CreateIndividuals(int number, List <ISetAttribute> initialAttributes, RuminantType ruminantType = null)
{
List <Ruminant> individuals = new List <Ruminant>();
if (number > 0)
{
RuminantType parent = ruminantType;
if (parent is null)
{
parent = FindAncestor <RuminantType>();
}
// get Ruminant Herd resource for unique ids
RuminantHerd ruminantHerd = parent.Parent as RuminantHerd; // Resources.FindResourceGroup<RuminantHerd>();
for (int i = 1; i <= number; i++)
{
double weight = 0;
if (Weight > 0)
{
// avoid accidental small weight if SD provided but weight is 0
// if weight is 0 then the normalised weight will be applied in Ruminant constructor.
double u1 = RandomNumberGenerator.Generator.NextDouble();
double u2 = RandomNumberGenerator.Generator.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2);
weight = Weight + WeightSD * randStdNormal;
}
Ruminant ruminant = Ruminant.Create(Sex, parent, Age, weight);
ruminant.ID = ruminantHerd.NextUniqueID;
ruminant.Breed = parent.Breed;
ruminant.HerdName = parent.Name;
ruminant.SaleFlag = HerdChangeReason.None;
if (Suckling)
{
if (Age >= ((parent.NaturalWeaningAge == 0)?parent.GestationLength: parent.NaturalWeaningAge))
{
string limitstring = (parent.NaturalWeaningAge == 0) ? $"gestation length [{parent.GestationLength}]" : $"natural weaning age [{parent.NaturalWeaningAge}]";
string warn = $"Individuals older than {limitstring} cannot be assigned as suckling [r={parent.Name}][r={this.Parent.Name}][r={this.Name}]{Environment.NewLine}These individuals have not been assigned suckling.";
Warnings.CheckAndWrite(warn, Summary, this, MessageType.Warning);
}
else
{
ruminant.SetUnweaned();
}
}
if (Sire)
{
if (this.Sex == Sex.Male)
{
RuminantMale ruminantMale = ruminant as RuminantMale;
ruminantMale.Attributes.Add("Sire");
}
else
{
string warn = $"Breeding sire switch is not valid for individual females [r={parent.Name}][r={this.Parent.Name}][r={this.Name}]{Environment.NewLine}These individuals have not been assigned sires. Change Sex to Male to create sires in initial herd.";
Warnings.CheckAndWrite(warn, Summary, this, MessageType.Warning);
}
}
// if weight not provided use normalised weight
ruminant.PreviousWeight = ruminant.Weight;
if (this.Sex == Sex.Female)
{
RuminantFemale ruminantFemale = ruminant as RuminantFemale;
ruminantFemale.WeightAtConception = ruminant.Weight;
ruminantFemale.NumberOfBirths = 0;
if (setPreviousConception != null)
{
setPreviousConception.SetConceptionDetails(ruminantFemale);
}
}
// initialise attributes
foreach (ISetAttribute item in initialAttributes)
{
ruminant.Attributes.Add(item.AttributeName, item.GetAttribute(true));
}
individuals.Add(ruminant);
}
// add any mandatory attributes to the list on the ruminant type
foreach (var mattrib in initialAttributes.Where(a => a.Mandatory))
{
parent.AddMandatoryAttribute(mattrib.AttributeName);
}
}
return(individuals);
}
/// <summary>
/// Calculate conception rate for a female based on condition score
/// </summary>
/// <param name="female">Female to calculate conception rate for</param>
/// <returns></returns>
public double ConceptionRate(RuminantFemale female)
{
return((female.RelativeCondition >= ConditionCutOff) ? 1 : 0);
}
/// <summary>
/// Create the individual ruminant animals using the Cohort parameterisations.
/// </summary>
/// <param name="number">The number of individuals to create</param>
/// <returns>List of ruminants</returns>
public List <Ruminant> CreateIndividuals(int number)
{
List <Ruminant> individuals = new List <Ruminant>();
if (number > 0)
{
RuminantType parent = FindAncestor <RuminantType>();
// get Ruminant Herd resource for unique ids
RuminantHerd ruminantHerd = Resources.RuminantHerd();
for (int i = 1; i <= number; i++)
{
double weight = 0;
if (Weight > 0)
{
// avoid accidental small weight if SD provided but weight is 0
// if weight is 0 then the normalised weight will be applied in Ruminant constructor.
double u1 = RandomNumberGenerator.Generator.NextDouble();
double u2 = RandomNumberGenerator.Generator.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2);
weight = Weight + WeightSD * randStdNormal;
}
object ruminantBase;
if (this.Gender == Sex.Male)
{
ruminantBase = new RuminantMale(Age, Gender, weight, parent);
}
else
{
ruminantBase = new RuminantFemale(Age, Gender, weight, parent);
}
Ruminant ruminant = ruminantBase as Ruminant;
ruminant.ID = ruminantHerd.NextUniqueID;
ruminant.Breed = parent.Breed;
ruminant.HerdName = parent.Name;
ruminant.SaleFlag = HerdChangeReason.None;
if (Suckling)
{
ruminant.SetUnweaned();
}
if (Sire)
{
if (this.Gender == Sex.Male)
{
RuminantMale ruminantMale = ruminantBase as RuminantMale;
ruminantMale.IsSire = true;
}
else
{
Summary.WriteWarning(this, "Breeding sire switch is not valid for individual females [r=" + parent.Name + "].[r=" + this.Parent.Name + "].[r=" + this.Name + "]");
}
}
// if weight not provided use normalised weight
ruminant.PreviousWeight = ruminant.Weight;
if (this.Gender == Sex.Female)
{
RuminantFemale ruminantFemale = ruminantBase as RuminantFemale;
ruminantFemale.DryBreeder = true;
ruminantFemale.WeightAtConception = ruminant.Weight;
ruminantFemale.NumberOfBirths = 0;
}
individuals.Add(ruminantBase as Ruminant);
}
}
return(individuals);
}
/// <summary>
/// Calculate conception rate for a female
/// </summary>
/// <param name="female">Female to calculate conception rate for</param>
/// <returns></returns>
public double ConceptionRate(RuminantFemale female)
{
double rate = 0;
bool isConceptionReady = false;
if (female.Age >= female.BreedParams.MinimumAge1stMating && female.NumberOfBirths == 0)
{
isConceptionReady = true;
}
else
{
double currentIPI = female.BreedParams.InterParturitionIntervalIntercept * Math.Pow((female.Weight / female.StandardReferenceWeight), female.BreedParams.InterParturitionIntervalCoefficient) * 30.64;
// calculate inter-parturition interval
currentIPI = Math.Max(currentIPI, female.BreedParams.GestationLength * 30.4 + female.BreedParams.MinimumDaysBirthToConception); // 2nd param was 61
double ageNextConception = female.AgeAtLastConception + (currentIPI / 30.4);
isConceptionReady = (female.Age >= ageNextConception);
}
// if first mating and of age or suffcient time since last birth/conception
if (isConceptionReady)
{
// generalised curve
switch (female.NumberOfBirths)
{
case 0:
// first mating
//if (female.BreedParams.MinimumAge1stMating >= 24)
if (female.Age >= 24)
{
// 1st mated at 24 months or older
rate = ConceptionRateAsymptote[1] / (1 + Math.Exp(ConceptionRateCoefficent[1] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[1]));
}
//else if (female.BreedParams.MinimumAge1stMating >= 12)
else if (female.Age >= 12)
{
// 1st mated between 12 and 24 months
double rate24 = ConceptionRateAsymptote[1] / (1 + Math.Exp(ConceptionRateCoefficent[1] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[1]));
double rate12 = ConceptionRateAsymptote[0] / (1 + Math.Exp(ConceptionRateCoefficent[0] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[0]));
// interpolate, not just average
double propOfYear = (female.Age - 12) / 12;
rate = rate12 + ((rate24 - rate12) * propOfYear);
}
else
{
// first mating < 12 months old
rate = ConceptionRateAsymptote[0] / (1 + Math.Exp(ConceptionRateCoefficent[0] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[0]));
}
break;
case 1:
// second offspring mother
rate = ConceptionRateAsymptote[2] / (1 + Math.Exp(ConceptionRateCoefficent[2] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[2]));
break;
default:
// females who have had more than two births (twins should count as one birth)
if (female.WeightAtConception > female.BreedParams.CriticalCowWeight * female.StandardReferenceWeight)
{
rate = ConceptionRateAsymptote[3] / (1 + Math.Exp(ConceptionRateCoefficent[3] * female.Weight / female.StandardReferenceWeight + ConceptionRateIntercept[3]));
}
break;
}
}
return(rate / 100);
}
/// <summary>
/// Create the individual ruminant animals using the Cohort parameterisations.
/// </summary>
/// <param name="number">The number of individuals to create</param>
/// <param name="initialAttributes">The initial attributes found from parent and this cohort</param>
/// <param name="ruminantType">The breed parameters if overwritten</param>
/// <returns>List of ruminants</returns>
public List <Ruminant> CreateIndividuals(int number, List <ISetAttribute> initialAttributes, RuminantType ruminantType = null)
{
List <Ruminant> individuals = new List <Ruminant>();
if (number > 0)
{
RuminantType parent = ruminantType;
if (parent is null)
{
parent = FindAncestor <RuminantType>();
}
// get Ruminant Herd resource for unique ids
RuminantHerd ruminantHerd = parent.Parent as RuminantHerd; // Resources.FindResourceGroup<RuminantHerd>();
for (int i = 1; i <= number; i++)
{
double weight = 0;
if (Weight > 0)
{
// avoid accidental small weight if SD provided but weight is 0
// if weight is 0 then the normalised weight will be applied in Ruminant constructor.
double u1 = RandomNumberGenerator.Generator.NextDouble();
double u2 = RandomNumberGenerator.Generator.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2);
weight = Weight + WeightSD * randStdNormal;
}
Ruminant ruminant = Ruminant.Create(Sex, parent, Age, weight);
ruminant.ID = ruminantHerd.NextUniqueID;
ruminant.Breed = parent.Breed;
ruminant.HerdName = parent.Name;
ruminant.SaleFlag = HerdChangeReason.None;
if (Suckling)
{
ruminant.SetUnweaned();
}
if (Sire)
{
if (this.Sex == Sex.Male)
{
RuminantMale ruminantMale = ruminant as RuminantMale;
ruminantMale.Attributes.Add("Sire");
}
else
{
Summary.WriteWarning(this, "Breeding sire switch is not valid for individual females [r=" + parent.Name + "].[r=" + this.Parent.Name + "].[r=" + this.Name + "]");
}
}
// if weight not provided use normalised weight
ruminant.PreviousWeight = ruminant.Weight;
if (this.Sex == Sex.Female)
{
RuminantFemale ruminantFemale = ruminant as RuminantFemale;
ruminantFemale.WeightAtConception = ruminant.Weight;
ruminantFemale.NumberOfBirths = 0;
if (setPreviousConception != null)
{
setPreviousConception.SetConceptionDetails(ruminantFemale);
}
}
// initialise attributes
foreach (ISetAttribute item in initialAttributes)
{
ruminant.Attributes.Add(item.AttributeName, item.GetAttribute(true));
}
individuals.Add(ruminant);
}
// add any mandatory attributes to the list on the ruminant type
foreach (var mattrib in initialAttributes.Where(a => a.Mandatory))
{
parent.AddMandatoryAttribute(mattrib.AttributeName);
}
}
return(individuals);
}
/// <summary>
/// Calculate conception rate for a female based on condition score
/// </summary>
/// <param name="female">Female to calculate conception rate for</param>
/// <returns></returns>
public double ConceptionRate(RuminantFemale female)
{
return((female.RelativeCondition >= ConditionCutOff) ? MaximumConceptionProbability : 0);
}