RU2308829C1 - Egg incubation method - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: method involves incubating eggs at respective temperature mode of 37.6-37.7 C from 1 to 18 days and 37.3-37.4 C from 18 to 21 days at relative humidity of 55-60%; beginning from 7-12 incubation days, subjecting eggs to acoustic action in the form of clicking sounds at a frequency of 2-3 pulses/s and acoustic pressure of 0.5-1 dB.

EFFECT: accelerated development, synchronous bringing out of nestling and provision for maintaining of high immune state.

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Description

The invention relates to the field of agriculture, namely to poultry farming.

There is a way to increase the immune status in chickens, including the introduction of bifidumbacterin and thymalin into eggs with 18-day-old embryos during their transfer to conclusion (RF patent No. 2104705, class A01K 41/00, 1998). However, this method, involving the introduction of immunostimulants into an egg, is technically complicated.

A known method of stimulating the development of chickens, providing for the cooling of eggs from 13 to 19 days of incubation for 1 h at a temperature of 17-19 ° C (AS USSR No. 812252, publ. In BI No. 10, 1981).

The invention is known (see RF patent No. 2221419, class A01K 41/00, 2004 - a prototype comprising incubation of eggs at an appropriate temperature of 37.6-37.7 ° C from 1 to 18 days and 37.3-37.4 ° C from 18-21 days at a relative humidity of 55-60%.

Known methods for incubating eggs at a changed temperature regime can stimulate the embryonic development of the bird, increase the hatchability of eggs, hatch healthy young animals, increase their stress resistance, lead to an increase in the immune status of the obtained young birds, but do not provide acceleration of development (earlier hatching) and synchronization hatching chicks.

The technical solution to the problem is the acceleration of development (earlier hatching) and synchronization of hatching while maintaining a high immune status.

The problem is achieved in that in the method of egg incubation, including incubating eggs at an appropriate temperature of 37.6-37.7 ° C from 1 to 18 days and 37.3-37.4 ° C from 18-21 days at relative humidity 55-60%, according to the invention, from 7-12 days of incubation, the eggs are subjected to acoustic effects in the form of clicking sounds with a frequency of 2-3 imp / s and with a sound pressure level of 0.5-1 dB.

The novelty of the proposed proposal is due to the fact that due to the acoustic effect on the eggs, the stabilization of respiration and the relative synchronization of respiratory rhythms are accelerated. In embryos, their own rhythms are “tuned” to the rhythm of external stimuli, which ensures a 3-hour hardening time and 5-12 hours earlier.

According to the patent and scientific and technical literature, no similar set of features was found, which allows us to judge the inventive step of the proposal.

Example. The experiment was carried out in the laboratory of the Department of breeding farm animals and genetics in the Kuban State Agrarian University. In order to conduct an experiment from incubating chickens of meat and egg breed Plymutroc vaccinated against Newcastle disease at the same time and in the same way, hatching eggs were obtained, which were divided into two groups by the method of analogues. The eggs of the experimental group were incubated at a temperature of 37.6-37.7 ° C from 1 to 18 days and 37.3-37.4 ° C from 18 to 21 days at a relative humidity of 55-60%, from 10-12 days of egg incubation subjected to acoustic impact in the form of clicking sounds with a frequency of 2-3 imp / s and with a sound pressure level of 0.5-1 dB, and the eggs of the control group in accordance with the generally accepted mode.

The research results are shown in the table.

From the above data it can be seen that the proposed method provides increased acceleration and synchronization of output while maintaining increased immunity with.-x. poultry, including egg incubation at an appropriate temperature of 31.6-31.1 ° С from 1 to 18 days and 37.3-37.4 ° С from 18-21 days at a relative humidity of 55-60%, to accelerated stabilization of respiration and relative synchronization of respiratory rhythms.

In the first experiment, the number of incubation eggs is ahead of the time of the first chick's hatching by 17 h 30 min from the control group, the duration of the hatching period in the experimental group was 29 h, and in the control 26 h 30 min, the hatching time of the first chick in the experimental group is ahead of the control by 11 h 35 min, and the duration of the hatching period in the experimental group is 17 hours, and in the control 26 hours. According to the results we can talk about the acceleration of development (earlier hatching) and synchronization of chicks in the first experiment f 9 h, the second for 15.40 hours, in the third to 12.3 hours while maintaining the immune status.

Research results Experience number Group Number of embryos Advance in time of the biting of the first chick, h.min The duration of the period of biting h.min Advance in time of hatching of the first chick, h.min The duration of the hatching period one Experience 24 at 17.30 29.00 at 11.35 5 p.m. The control 24 - 26.30 - 26.00 2 Experience 94 at 6.00 6 p.m. at 5.00 5 p.m. The control 94 - 9 p.m. - 32.40 3 Experience 62 at 11.40 19.30 at 10.20 7 p.m. The control 62 - 20.40 - 31.30

Claims (1)

A method of egg incubation, including incubating eggs at an appropriate temperature of 37.6-37.7 ° C from 1 to 18 days and 37.3-37.4 ° C from 18-21 days at a relative humidity of 55-60%, characterized in that from 7-12 days of incubation, the eggs are subjected to acoustic effects in the form of clicking sounds with a frequency of 2-3 imp./s and with a sound pressure level of 0.5-1 dB.