Domestication is an artificial conditioned reflex based on the innate instinct behavior of animals, and it is the acquired behavior of individual animals. This artificial conditioned reflex can be continuously strengthened or subsided, indicating the strengthening or weakening of domestication. Therefore, artificial domestication can't be regarded as once and for all, and it needs constant consolidation.

1) Domestication in early development stage: This domestication method is based on the plasticity of larvae, and the effect is generally good. For example, in Yellow weasel, if you don't open your eyes for 30 days after delivery, you can keep them artificially by isolating them from the mother animals, and then contact with the artificial environment after opening your eyes, so you can accept the management of artificial feeding well. For example, young animals fed by female ferrets after giving birth are often domesticated artificially for several years, and their wild behavior will not change. Another example is the young deer that has been artificially fed after giving birth to colostrum, and the domestication foundation is very good. When I grow up, I will be the backbone deer in the core group. However, it is very difficult for a young deer that is breastfed by a doe after delivery to artificially breastfeed after a few days. Such young deer are domesticated in other ways when they grow up or show poor domestication foundation in grazing activities, and generally cannot become backbone deer.

2) Individual domestication and group domestication: Individual domestication is the individual domestication of each animal. For example, every animal in the circus needs to train a unique set of performance skills. Large animals living alone in the zoo are trained to overcome shock and irritability, and the service training of young animals belongs to this domestication. In the wildlife breeding industry, it is also necessary to carry out supplementary individual domestication for individuals with poor individual activity performance (that is, individuals with insufficient domestication). But in the field of wildlife breeding, group domestication has greater practical significance. Group domestication is under the guidance of a unified signal, so that each animal can establish a * * * conditioned reflex and produce consistent group activities. Such as foraging, drinking and grazing, all move together regularly under the guidance of a unified signal, which brings great convenience to feeding management.

3) Direct domestication and indirect domestication: The above-mentioned individual domestication and group domestication belong to direct domestication. On the other hand, indirect domestication takes advantage of the differences in the degree of domestication between individuals of the same or different species, or the differences between domesticated animals and untamed animals. This kind of domestication is to establish behavioral contact between animals with different degrees of domestication and produce the effect of unified activities. For example, a highly domesticated doe leads a group of young deer to graze, which is a "grazing method" formed by using the behavioral characteristics of "imitating learning" of young deer. In the process of grazing, the domestication degree of young deer is constantly improving. Another example is to use a highly domesticated herding dog to help people herd deer. This is a very effective tool to form a "behavior chain" among people, dogs and deer, which will achieve good grazing effect. In addition, training domestic chickens to hatch pheasants, black-bone chickens to hatch quails, otters to fish, and bitches to feed tigers have all appeared in China.

4) Domestication of sexual activity: Sexual activity is a special period of animal behavior. Due to the increase of sex hormone levels in the body, there are behavioral characteristics such as panic, anger, courtship, struggle, loss of appetite and solitude, which bring many difficulties to feeding management. It is necessary to carry out special targeted domestication according to the physiological and behavioral characteristics of this period to avoid production losses. For example, keep the environment quiet, control the light, carry out breeding training for animals that have participated in breeding for the first time, prevent refusing mating and biting, especially establish new conditioned reflex by using lights, sounds or other signals during breeding, and guide animals to mate, eat and rest regularly to form regular activities. It can not only ensure that adult animals avoid casualties, but also improve the reproductive rate.