CN108782458B

CN108782458B - Method for breeding improved Taishen pigeons

Info

Publication number: CN108782458B
Application number: CN201810707582.5A
Authority: CN
Inventors: 汤青萍; 卜柱; 陈卫彬; 穆春宇; 宋迟; 常玲玲; 付胜勇; 张蕊; 赵东伟
Original assignee: Jiangsu Weitekai Pigeon Industry Co ltd; Jiangsu Institute Poultry Sciences
Current assignee: Jiangsu Weitekai Pigeon Industry Co ltd; Jiangsu Institute Poultry Sciences
Priority date: 2018-07-02
Filing date: 2018-07-02
Publication date: 2022-02-11
Anticipated expiration: 2038-07-02
Also published as: CN108782458A

Abstract

The invention discloses a method for breeding improved Taishen pigeons, which comprises the following steps: (1) selecting a male pigeon of the Taishen pigeon and a female pigeon of the silver feather king pigeon to hybridize to obtain an F1 generation; (2) selfing and breeding the F1 generation to obtain the F2 generation, and selecting and reserving the almond feather male pigeon and the blue gray feather female pigeon; (3) mating the selected male pigeons with the female pigeons with blue gray feather to obtain an F3 generation judgment feather color, identifying the sex, and crossing for a fixed generation to obtain the improved Tai-Shen pigeons. The new variety of the improved Thai dark pigeon cultivated by the method can directly realize identification of male and female through different feather colors before 28 days of age, basically has no identification cost, has the identification accuracy rate of over 99 percent, improves the production performance, reduces the death and culling rate, and can effectively improve the cultivation benefit.

Description

Method for breeding improved Taishen pigeons

Technical Field

The invention relates to a method for breeding pigeons, in particular to a method for breeding improved Taishen pigeons.

Background

The pigeon consumption habit in China has been all the time, and with the economic development, the demand of high-end pigeon products is also increased year by year. Consumption promotes the development of industry, and the stock of breeding pigeons in China is increasing in recent years. According to incomplete statistics, at the end of 2016, about 5000 million pairs of domestic breeding pigeons are stocked, more than 6 hundred million commercial pigeons are produced in year, 8 hundred million edible pigeon eggs are produced, and the total production amount accounts for more than 80% of the total world amount. However, the pigeon as a special bird cannot be compared with the traditional poultry (chicken, duck and goose) in the industrial development and scientific research level, and the lack of variety cultivation seriously hinders the development of the industry.

The Taishen pigeons are meat pigeons which have a certain feeding amount and can be self-identified through feather color in China at present. When the pigeon is a late-grown bird, the young pigeon which just came out of the shell is weak and can not be identified as anus turning; the male and female can be identified according to the body shape only after the breeding pigeon is mature and the external sexual characteristics are developed completely. The external characteristics of the female pigeons and the male pigeons are not obvious, so that early identification cannot be realized, and the problem of industrial development is always troubled. In recent years, scientific and technological progress is achieved, DNA of pigeon individuals can be extracted, and male and female identification can be achieved through molecular markers, but the method needs certain laboratory operation skills, is high in cost (one sample, namely one pigeon, is about 3 yuan), can be adopted only by large breeding companies, and is not beneficial to large-area popularization. The Tai dark pigeon male pigeon is almond-colored, the female pigeon is blue-gray, and the feather color can be distinguished by difference after the female pigeon is aged for 15 days, so that the difficulty of early identification is overcome. The Taishen pigeons have the advantages of feather color, and also have the defects of low egg yield, low vitality and high death and culling rate, so the feeding amount can not be improved all the time. In order to adapt to the development of meat pigeon industry and improve production benefit, a new pigeon line breeding method which improves Taishen pigeons and still keeps the feather color self-identification characteristic is urgently required to be explored.

Therefore, the improved Taishen pigeon with the feather color self-identification and good production performance has important significance.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a method for cultivating an improved Taishen pigeon. The method can be used for cultivating the new variety of the Taishen pigeons, so that the production performance of the Taishen pigeons is improved, and the characteristic of self-distinguishing feather color can be maintained.

The self-differentiation of the feather color of the Taishen pigeons is mainly controlled by a B gene positioned on a sex chromosome Z, and the B gene is dominant heredity and has a dose effect. The improvement of the Taishen pigeons can be realized only by finding a pigeon group which has good production performance and is homozygous for the invisible gene b. The inventor of the patent finds that the silver feather king pigeon is an ideal group.

Specifically, the invention provides a method for breeding improved Taishen pigeons, which comprises the following steps:

(1) selecting a male pigeon of the Taishen pigeon and a female pigeon of the silver feather king pigeon to hybridize to obtain an F1 generation;

(2) selfing and breeding the F1 generation, performing sex identification on the obtained F2 generation at the age of 7-10 days, wearing a sex ring on a female pigeon, judging the feather color when the female pigeon leaves a nest, selecting and reserving an almond feather male pigeon and a blue gray feather female pigeon, and eliminating the blue gray feather male pigeon and a silver feather female pigeon;

(3) mating the selected almond feather male pigeon and blue gray feather female pigeon to obtain an F3 generation, judging the feather color condition when the F3 generation is 7-10 days old, and identifying the sex, wherein the feather color of the male pigeon is the same as that of the male parent of the parent pigeon, the feather color of the female pigeon is the same as that of the female parent of the parent pigeon, if deviation occurs, all offspring and the parent pigeon are eliminated, and after cross-crossing for one generation, the improved Thai dark pigeon is obtained.

Further, in the step (1), the F1 generation is all blue gray feather, and the male pigeon and the female pigeon are respectively 50%.

Further, in the step (2), the number of the F2 generation almond feather male pigeons, the blue gray feather female pigeons, the blue gray feather male pigeons and the silver feather female pigeons is respectively 25%.

Further, in the steps (2) and (3), the molecular markers are used for sex identification of the offspring individuals.

Further, if the production performance of the new variety C of the improved Taishen pigeons is still not satisfactory, selecting male pigeons of the improved Taishen pigeons and female pigeons of the silver feather pigeon, and repeating the steps (1), (2) and (3).

The invention has the beneficial effects that: the new variety of the improved Thai dark pigeon cultivated by the method can directly realize identification of male and female through different feather colors before 28 days of age, basically has no identification cost, has the identification accuracy rate of over 99 percent, improves the production performance, reduces the death and culling rate, and can effectively improve the cultivation benefit.

Drawings

FIG. 1 is a schematic diagram of the breeding of the improved Taishen pigeon of the invention.

Detailed Description

The following further illustrates the above embodiments by way of examples and figures, but the invention is not limited thereby within the scope of the described embodiments.

As shown in figure 1, the method for breeding the improved Taishen pigeons specifically comprises the following steps:

(1) selecting male pigeon (almond feather) of Tai deep pigeon and female pigeon (silver feather) of silver feather king pigeon for hybridization, wherein F1 generation is blue gray feather, and F1 generation is 1/2Z^BZ^b(blue gray feather), 1/2Z^BW (blue gray feather);

(2) f1 generation selfing breeding, wherein the obtained F2 generation is used for identifying male and female pigeons by molecular markers at the age of 10 days, a red foot ring is additionally worn on the female pigeons, the feather color is judged when the pigeons leave nests at the age of 28 days, an almond feather male pigeon and a blue gray feather female pigeon are selected and left, and the blue gray feather male pigeon and the silver feather female pigeon are eliminated; f2 substitution 1/4Z^BZ^B(Almond feather), 1/4Z^BW (blue gray feather), 1/4Z^BZ^b(blue gray feather), 1/4Z^bW (silver feather); specific methods for said molecular labelling are described in the references: zhangli, Dandacong, Liu, etc. research of pigeon sex fast identification method by CHD gene [ J]2016,43(5): 1379-1384;

(3) mating the selected almond feather male pigeons and blue gray feather female pigeons, identifying the sex of the obtained F3 generation at the age of 10 days, judging the feather color at the age of 28 days, wherein the feather color of the offspring male pigeons is the same as that of the male parent pigeons, the feather color of the offspring female pigeons is the same as that of the female parent pigeons, if deviation occurs, the offspring and the parent pigeons (one pair) are completely eliminated, and the cross-breeding is carried out for one generation, so that the improved Thai dark pigeon new strain (containing 50% of the blood system of the silver feather king pigeons) is obtained.

If the improvement effect is still not satisfactory, the improved Taishen pigeon (containing 50% of the silver feather king pigeon ancestry) can be used for repeating the steps (1), (2) and (3) to obtain a new improved Taishen pigeon line containing 75% of the silver feather king pigeon ancestry.

The feather color of the improved Thai dark pigeon new strain cultivated by the method is self-distinguished, and the production performance is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims

1. The method for breeding the improved Taishen pigeons is characterized by comprising the following steps:

2. The method for breeding improved Taishen pigeons according to claim 1, wherein in the step (1), the F1 generations are all blue gray feather, and the number of male pigeons and the number of female pigeons are 50% respectively.

3. The method for breeding an improved Taishen pigeon according to claim 1, wherein in the step (2), the number of the F2 generation female pigeon is 25% for each of the male pigeon with almond feather, the female pigeon with blue gray feather, the male pigeon with blue gray feather and the female pigeon with silver feather.

4. An improved Taishen pigeon culture method as claimed in claim 1, wherein in the steps (2) and (3), the progeny individuals are sex-identified by using molecular markers.

5. The method for breeding an improved Taishen pigeon according to claim 1, wherein a male pigeon of the improved Taishen pigeon and a female pigeon of the silver feather king pigeon are selected and the above steps (1), (2) and (3) are repeated.