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A non-destructive sex determination method for poultry embryo eggs

A determination method and embryo egg technology, applied in the field of poultry breeding, can solve the problems of poor repeatability, roughness, inconvenient operation, etc., and achieve the effects of saving hatching costs, improving production efficiency, and being beneficial to production, application and promotion.

Inactive Publication Date: 2020-06-05
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the difference between male and female embryonic eggs can be used for gender determination. This method was first reported by Ma Renliu in 1976, but the identification standard he proposed was "the males are more symmetrical on both sides, and the females are not normal on the left and right." It is extremely rough and inconvenient. Operation, repeatability is also poor, since then has not seen practical application

Method used

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  • A non-destructive sex determination method for poultry embryo eggs
  • A non-destructive sex determination method for poultry embryo eggs
  • A non-destructive sex determination method for poultry embryo eggs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Example 1: Embryo chicken eggs

[0085] As attached figure 1 As shown, after sterilizing 40 breed eggs in the same batch according to conventional technical requirements, they were pre-incubated at 28°C for about 4 hours to heat the embryo eggs evenly, and then adjusted to 38°C and 60% relative humidity for incubation. Gender determination is performed at 104 hours. First, place the embryo egg side flat for 5 minutes, and use an LED flashlight against the embryo egg for inspection. After removing the infertile eggs and dead embryo eggs, perform gender determination in the standard position of the head and the tail. , The accuracy rate is 78.26%. Among them, the instructions are attached image 3 Schematic diagram of the blood line of a male embryo egg, attached to the instruction manual Figure 4 It is a schematic diagram of the blood line of a female embryo egg, which can be seen in the instructions attached image 3 The symmetry of the blood line of the lower part of the...

Embodiment 2

[0087] Example 2: Duck embryo eggs

[0088] As attached figure 1 As shown, after disinfecting 40 breeding duck eggs in the same batch according to conventional technical requirements, they were pre-incubated at 28°C for about 4 hours to heat the embryo eggs evenly, and then adjusted to 38°C and 60% relative humidity for incubation. Gender determination is carried out at 120 hours. First, the embryo egg side is placed flat for 4 minutes, and the embryo egg is checked with an LED flashlight. After removing the infertile egg and the dead embryo egg, the sex determination is carried out in the standard position of the head and the tail. The accuracy rate is 85.26%. Among them, the instructions are attached Figure 5 Schematic diagram of the blood line of a male duck embryo egg, attached to the instruction manual Image 6 It is a schematic diagram of the blood line of a female duck embryo egg. Figure 5 The symmetry of the blood line of the lower part of the embryo of the middle male ...

Embodiment 3

[0090] Example 3: Pigeon embryo eggs

[0091] As attached figure 1 As shown, after disinfecting 40 breeding pigeon eggs in the same batch according to conventional technical requirements, they were pre-incubated at 28°C for about 4 hours to heat the embryo eggs evenly, and then adjusted to 38.5°C and 60% relative humidity for incubation. Gender determination is performed at 96 hours of incubation. First, place the embryo egg side horizontally for 8 minutes, and use an LED flashlight against the embryo egg for inspection. After removing the infertile eggs and dead embryo eggs, determine the gender by using the standard posture above and below the tail. , The accuracy rate is 86.5%. Among them, the instructions are attached Figure 7 Schematic diagram of the blood line of male pigeon embryo eggs, attached to the instruction manual Figure 8 It is a schematic diagram of the blood line of a female pigeon embryo egg, see the instructions attached Figure 7 The blood line symmetry of ...

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Abstract

The invention discloses a method for lossless determination of genders of poultry embryo eggs. The method comprises the following steps of first, regularly hatching embryo eggs, second, acquiring embryo eggs with proper appearances, third, illuminating and detecting the embryo eggs according to a standard position, and fourth, determining a gender according to an embryo egg vitelline sac bloodline difference determination standard. The embryo egg vitelline sac bloodline difference determination standard is that when vitelline sac bloodline types on the left and right sides of the lower part of the embryo egg are the same, the gender is male; when the vitelline sac bloodline types on the left and right sides of the lower part of the embryo egg are different and the bloodline on the right-lower part is more developed than that of the left-lower part, the gender is female; and when vitelline sac bloodline types on the left and right sides of the lower part of the embryo egg are different and the bloodline on the left-lower part is more developed than that on the right-lower part, the gender is male. With the aid of the determination method for the gender of poultry embryo eggs, lossless determination for gender can be conducted for poultry embryo eggs in early stage; the embryo eggs can be selectively hatched as needed; embryo eggs non-required can be used for other purposes; and production efficiency can be further improved.

Description

Technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a method for determining the sex of poultry embryos and eggs without damage. Background technique [0002] At present, in poultry production, the sex identification of poultry is first carried out when the chicks are out of their shells, mainly through the method of turning the anus of the chicks or identifying the sexes by themselves. Since the natural ratio of male and female individuals in poultry is roughly 1:1, there are obvious differences in growth and development speed, production performance, and economic value between the two sexes. Laying poultry production companies only need female poultry, while meat poultry production companies prefer male poultry. The chicks in need often face the fate of being strangled at birth, causing animal welfare problems. [0003] Therefore, if it is possible to use the inspection technology to determine the gender of the early embryo e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K43/00A01K67/02
CPCA01K43/00A01K67/02
Inventor 杜晓惠叶子巧婧刘拯廷
Owner SICHUAN AGRI UNIV
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