diff --git a/golang/Lab5/Lab5.go b/golang/Lab5/Lab5.go
new file mode 100644
index 00000000..99c4eff0
--- /dev/null
+++ b/golang/Lab5/Lab5.go
@@ -0,0 +1,48 @@
+package main
+
+import (
+	"errors"
+)
+
+type Dog struct {
+	Name string
+	Age int
+	Weight float64
+}
+
+func NewDog(dog_name string, dog_age int, dog_weight float64) (Dog, error) {
+	var d Dog = Dog{Name: dog_name}
+	err := d.SetAge(dog_age)
+	if err != nil {
+		return Dog{}, err
+	}
+	err = d.SetWeight(dog_weight)
+	if err != nil {
+		return Dog{}, err
+	}
+	return d, nil
+}
+
+func (d *Dog) SetAge(age int) error {
+	if age < 0 {
+		return errors.New("Возраст не может быть отрицательным")
+	}
+	d.Age = age
+	return nil
+}
+
+func (d *Dog) SetWeight(weight float64) error {
+	if weight <= 0 {
+		return errors.New("Вес не может быть меньше или равен 0")
+	}
+	d.Weight = weight
+	return nil
+}
+
+func (d Dog) GetAge() int {
+	return d.Age
+}
+
+func (d Dog) GetWeight() float64 {
+	return d.Weight
+}