SU858691A1 - Method of extracting young pearl-hens out of hatcher - Google Patents

Description

The invention relates to agriculture, namely, to poultry farming, and can be used in incubation workshops when sampling day-old chickens from an incubator. There is a method of sampling young poultry s / c, including one-day chicken, from an incubator, in which the operator performs all the work manually. The operator takes out from the incubator alternately trays weighing 10–12 kg each, puts them on the table, selects dried chunks in shchkkk, and returns the trays with the remaining embryos to the incubator. This operation is repeated 2-3 times in each batch of pre-incubated eggs. The disadvantage of this method is that it is laborious and is performed manually. In addition, the pre-rusa, there are violations in the incubator and violations of the requirements of veterinary and sanitary prevention. There is a method of sampling one-day chickens using monofrequency sound signals, in which monofrequency sound signals are used in the range of 300-500 Hz, with an intensity of 60-80 dB, 2-3 packages per second, 60-80 ms each, which are fed to the incubator for 15–20 s with an interval of 5–8 s, with the incubator maintaining a temperature of 30–32 s and a relative humidity of 60–65% t2J. The disadvantage of this method is that sound signals with the specified spectral-time parameters do not cause a motor response in the patient. This is due to the specific biology of this species of bird. The purpose of the invention is the replacement of manual labor. The goal is achieved by the fact that in the proposed method of sampling desiccants from an incubator, an acoustic signal is used in a frequency range of 1500–1800 Hz, 8-10 packages per second, 50–60 ms each, which is fed into the incubator for 20 30 seconds with an interval of 10–15 seconds. In addition, the czars are sampled at an incubator illumination of more than 3i but less than 5 lx. Example. In experiments conducted with multiple repetitions, iOOO heads would be used for 12–24 hours, outcalls. Sound signals would be transmitted through the speaker to the output T incubator, where the following conditions were provided: air temperature + 29–30 s / relative humidity 60–65 % illumination 3-5 lux. One-day caesar (12-24 hours) showed an unconditionally-reflecting reaction in the direction of sound and they left the trays to the receiving planes, overcoming the distance of 0.6-1.2 m. In 20–35–45 min of sampling, 8095–100% of cesars were spent.

Using the proposed method of sampling the chickens from an incubator using mono-frequency sound signals, one can mechanize manual labor, eliminate disturbance in the incubator, increase labor productivity by 4-5 times, improve veterinary and sanitary conditions in the hatchery.

Claims (2)

1. A method of sampling a desiccant from an incubator using an audio mono-frequency signal with an intensity of 6080 dB, characterized in that, in order to replace manual labor, a sound mono-frequency signal is used in the range of 1500–1800 Hz of 8–10 shipments per second, duration 50 - 60 ms each, which is fed into the incubator for 20-30 seconds with an interval of 10-15 seconds. 2. A method according to claim 1, characterized in that the samples of the czars are performed at an incubator illumination of more than 3, but less than 5 lx. Sources of information taken into account in the examination 1. Handbook for incubating eggs of poultry, M., 1971 p. 161. 2. Authors certificate of the USSR 657797, cl. A 01 K 45/00, 1974.