Imitating modelling of a cattle-breeding complex on basis Cedar Bog
Setting a task of modelling. There is a cattle herd structured on the basic of age. The herd consists of Heifers, Calves, Milk cows, Cows, Bulls. Each Animal has its Age. The daily increase depends in weight of an animal which defines the weight of it depends on the age. So, for example, at achievement of the certain age (≈500 days) calves become bulls and pass from Calves in Bulls, but not all of them. Only the quantity which is enough for reproduction of the herd. The others remain calves until they fatten the necessary weight (≈1000 kg). As soon as it occurs, they are slaughtered. The similar situation is with heifers. Only at achievement of the certain age (≈450 days) they are divided into two categories: milk cows and cows. Cows are bred for meat production, MilkCows - for reproduction of herd and production of milk. According to financial opportunities a farmer defines an initial livestock of the cattle, and then makes a plan of reception of a livestock of the cattle in the future. It is required to model the change of an annual turnover of the herd and its reproduction.
Component of a high level: Farm (Farm) which describes the structure of the model.
HIGH LEVEL COMPONENT FARM_High
SUBCOMPONENTS
Meteo,
Forage,
Effluent,
Herd
COMPONENT CONNECTIONS
Meteo.sun --> Forage.sun;
Meteo.sun --> Effluent.sun;
Meteo.sun --> Herd.sun;
Herd.Dung --> Effluent.Dung;
Effluent.A --> Herd.A;
Herd.Numb_young --> Forage.Numb_young;
Herd.Numb_old --> Forage.Numb_old;
END OF FARM_High