Overview of breeding patterns
Cultivation takes place in a variety of ways, but can be summarized in four main types: same line reproduction, haemorrhage, heterogeneity and hybridism. These approaches each have a unique purpose and are applied to produce the desired breeding effects. However, there are some differences in the definitions of these terms in the academic world as different breeding methods are used in different strains. These breeding patterns are explored in detail below。
Same breed
Cohabitation, i. E. The mating of two intimacy pigeons, usually does not exceed two generations and the two are not the immediate ancestors of the other. This type of reproduction requires the exclusion of direct relatives such as mothers and sons, granddaughters and grandfathers. In practice, brother-and-sister matching is the most common form of congener breeding, while it is easier for younger siblings to match within generations。
Cohabitation is a core component of reproduction: cohabitation is the mating of a relative dove, usually no more than two generations, which can effectively improve the quality of breeding. This pattern of reproduction does not have adverse effects, but there is a need to carefully select pigeons to avoid the emergence of hidden negative genes。
Consisting genes may appear during reproduction, and they have important effects on breeding results. Because these genes may have a positive or negative impact on the performance of pigeons, the results of co-generation vary considerably. In essence, however, congenial reproduction does not have any adverse effects. This has been confirmed by dr. Helen dankin of the west institute, who has demonstrated, through experiments, that co-production can produce healthier and better offspring on a carefully chosen basis。
In order to ensure the success of breeding programmes, pigeons must be carefully selected and individuals carrying undesirable genes removed. Only in this way can the genetic quality of future generations be ensured and the potential for congener reproduction maximized. At the same time, haemorrhage, as a particular form of breeding, is favoured by a large number of pigeons, but its effects are often overtly publicized. By contrast, homogenous reproduction focuses more on the overall quality of the dove at the source, the development and implementation of breeding programmes, and the soundness of the method and quantity chosen。
The way back
Recursive blood, often mistakenly considered as a homogeneity, differs significantly in the breeding of pigeons, and there are good reasons to define it independently. Retaliation involves mating with ancestors in order to make future generations similar to particular individuals of the ancestors, through which pigeons can more effectively choose the hidden genes that they wish to emerge。
The core element of the retributive approach is that of mating with ancestors, with the aim of making future generations similar to particular individuals of their ancestors, more effective in selecting hidden genes and achieving specific breeding goals。
In the case of a simple combination of genes, if the father of the pigeon is made up of aabb and the mother is aabb (in which the uppercase letters represent the explicit gene and the lowercase letters represent the hidden gene), the genetic composition of all the pigeons is abba, which is known as the f1 generation. If these f1 generation doves mate among themselves, the produced dove (f2 generation) gene will become aabb. As a result, rebreeding is indeed better developed in genetic control than in ordinary homologues。
However, in practice, the number of genes involved in hybrids can be very large. Nevertheless, through in-depth research and focus on the key genes in each mating, we can gradually reveal the unique advantages of reblood in genetic control。
Alien reproduction and hybridism
Sphere reproduction, i. E. The mating between two individuals who do not have direct blood relations, can be defined as heterosexual reproduction if they do not have a common ancestor within four generations. This method of reproduction is designed to inject new characteristics or increase the diversity of mutations into the lineage。
The core elements of heterogeneity and hybridity: heterogeneity introduces new characteristics through cross-conformity, while heterogeneity involves a large number of genes, which are designed to study the genetic composition of different reproductions and are often used to demonstrate excellence。
Mixing, as a way of mating between different varieties, although less directly producing pigeons, is important for genologists to study the genetic composition of different breeds. One of the strategies in pure reproduction is the antigens, which use “females” to mate with their “fathers” or “children” with their “mothers”, with the aim of showing explicit genes by increasing purity, without increasing the number of invisible genes。
Pure procreation strategy
Pure reproduction, i. E. Reproductive selection in the same species, is designed to identify problems, clearly select fertility indicators and, after rigorous selection, selection and recovery, eventually achieve the desired breeding purposes. Pure reproduction is at the core of the strategy: pure reproduction increases purity through anti-generational strategies, etc., avoiding the appearance of hidden harmful genes, while maintaining jus sanguinis through environmental and nutritional control。
However, pure reproduction may also be exposed to the risk of degradation of varieties due to “overpurity”. After breeding to a given algebra, hidden harmful genes may appear, leading to a decline in varieties and a decline in resilience. But fortunately, we can avoid these recessions through a series of measures to ensure that the purity and advantages of the varieties are preserved。
Nutritional balance against recession: after the pure blood pigeons hatched, the female and male pigeons were fed to different species of good breeds. This is due to the influence of the dairy content of the dove-sweet, which directly alters the biological properties of the young and makes the body plastic. This practice is important to preserve the purity of the offspring of the pure seed pigeons and to avoid recession。
Environmental differences prevent recession: when the pigeons leave their nests, the female and male pigeons are placed in different environmental conditions, including different methods of raising, climatic conditions and training. This is based on the principle that biological organisms are closely related to environmental conditions and that different environmental incentives drive young pigeons into different bodies. Although these pigeons are of the same blood, they may be of different quality after being raised in different environments. When the pigeons are fully mature (usually taking about a year or so) then co-production can also help to avoid recession and maintain purity. Please note, however, that this method should not be used frequently。
In addition, taiwan's pigeon-bearer wu koping has proposed four breeding formulas based on a study of the theory of dutch pigeon-breeding herman beverdam and his years of practical experience. These include twinning strategies between half-sisters and half-sisters, and twin-sisters and half-sisters, which can be achieved through a succession of two and three. These formulas provide more choice and guidance to pigeon-bearers and help them to reproduce and improve pure seed more effectively。
In the application of these breeding formulas, pigeons that appear at each step must undergo rigorous competition. Pokering is the only test for the quality of pigeons, and pigeons who are not tested for competition are not suitable for breeding. The pure genes for the rapid return to the nest, selected through competition, will be preserved for subsequent breeding。
