How many days the chicks go without light, and what is the temperature at which the chicks grow

Generally, it takes about a week to determine the room temperature.

Rational use of light can enable chicken farmers to obtain the greatest economic benefits. Chicken breeders should be the same as feed, drinking water of chickens, reasonable adjustment of use, such as the rational use of artificial light or artificial shading, change the light intensity, light time and light chromaticity, etc., effectively control the growth and development of chickens, feathering, moulting, nesting, regulate the sexual maturity of chickens, prevent and reduce the occurrence of chicken pecking, etc., improve the production performance of chickens and the economic benefits of raising chickens.

Chickens are more sensitive to vision, and can see light with a wavelength of 400 nm to 770 nm, which is basically the same as the wavelength of light visible to the human eye (red, orange, yellow, green, cyan, blue, violet) with a wavelength of 400 nm to 760 nm. Chickens also have a sense of color for light chromaticity, especially under red, orange and yellow light. Experiments have shown that the use of different light chromaticity can change the feeding intake, growth performance, pecking and sexual function of chickens.

Red light can delay the sexual maturity of chickens, make the flock quiet, reduce pecking, and increase egg production, but the fertilization rate decreases;

Yellow light can reduce the feed remuneration of chickens, delay sexual maturation, increase egg weight, reduce egg production, and increase pecking.

Green light can increase the weight gain rate of chickens, accelerate sexual maturity, and improve the fecundity of roosters;

Blue light can promote the sexual maturity of chickens, increase the rate of weight gain, enhance the breeding ability of roosters, and reduce pecking habits.

Light time and its light intensity will also have different effects on chickens, long-term light can promote the sexual maturity of chickens, prevent chicken moulting, such as increasing light in winter and spring can improve the egg production of chickens; Short-term, low-intensity light is conducive to the accumulation of body fat during the fattening period of chickens, which is beneficial to the fattening of chickens. Therefore, appropriate light has an important impact on the life activities, material metabolism and production performance of chickens. Therefore, chicken breeders should reasonably adjust the use of light according to the chickens fed in different production periods, and maintain the relative stability of light time and light intensity, so as to maximize the production performance of chickens and improve the economic benefits of raising chickens.

Chick thermometer from 1 to 40 days:

1. In the process of raising chicks, the temperature of 1-2 day old chicks is 35. For chicks aged 3-7 days, the temperature is 32-35 to be appropriate. Chicks 7-14 days old, the temperature is 29-32 shivering.

For chicks aged 14-21 days, the temperature is 27-29. For chicks aged 22-40 days, a temperature of 21 is appropriate.

2. With the increase of the age of the chicks, the daily light time should be maintained to a certain or slightly reduced, and cannot be increased. Generally, 1-3-day-old chicks are exposed to 22-23 hours of light per day, and then gradually reduced by 20 minutes per week until 9 hours of light per day.

3. In order to control the appropriate temperature, the breeding of chicks should also control the breeding density, generally 1-14 days old chicks, 50-60 square meters is appropriate, 15-21 day old chicks, 35-40 square meters are appropriate, 21-44 day old chicks are appropriate, 25 square meters are appropriate, 60 days old and then 12 square meters are appropriate.

Temperature different performance:

1. When the temperature is too high, there will be manifestations such as the chick opening its mouth panting, breathing faster, and drinking water frequently, which will affect the growth of the chick in serious cases.

2. When the temperature is too low, the chicks squeeze each other, accumulate layer by layer, move slowly, shrink their necks, close their eyes and scream, and sleep restlessly.

3. Under the right temperature, the chick is lively and active, the feathers are smooth and neat, the appetite is strong, the wings are stretched out, the action is agile, the sleep is quiet, and the sleeping position stretches the head and legs. <>

1. Suitable temperature.

Under the premise that the ambient temperature is controlled, such as 24 26, the optimal temperature of the incubator is about 37, and the optimal temperature of the hatcher is 37; If the room temperature is not suitable, the incubation temperature can be varied.

Second, the impact of high temperatures.

High temperatures accelerate embryonic development and shorten the incubation period, but mortality increases and chick quality decreases. Some data show that the hatching rate of 16-day-old embryos decreased slightly after 24 hours; 43 The hatching rate decreased significantly after 6 hours, and decreased even more after 9 hours. After 3 hours or 1 hour, all embryos will die.

3. The impact of low temperatures.

At low temperatures, embryonic development is stunted, the incubation period is prolonged, and mortality increases. At the same time, the embryo mostly dies inside the shell. The short-term cooling has no adverse effect on the incubation results.

Before 14 days of incubation, embryonic development is greatly affected by the decrease in temperature. During incubation, incubation at low temperatures should be prevented in the early stages of embryonic development (1 7 days) and high temperatures should be avoided during hatching (19 to 21 days).

The appropriate temperature for hatching eggs and chicks is between.

When the incubation temperature is so, the hatch is hatched; Time is the day; 21 days; When the temperature is high, the embryo develops quickly, but the chicks are weak. The optimal temperature range for the development of chicken embryos is between, but the embryos need different incubation temperatures at different stages of development.

First of all, the eggs are incubated at different temperatures depending on the time they take to hatch the chicks.

Secondly, in general, the suitable temperature for incubation is between.

For example, the incubation temperature is time, and the incubation time is days; Time is the day; 21 days; When the temperature is high, the embryo develops quickly, but the hatched larvae are not easy to survive.

Optimal temperature range for embryonic development and optimal temperature for incubation Chicken embryonic development has a certain ability to adapt to the ambient temperature, with a temperature of 35, and some eggs can hatch. However, if incubation is carried out in an electric incubator, these temperatures are not optimal for embryonic development. Under the premise that the ambient temperature is controlled, the optimal incubation temperature for the stereo incubator is 10F.

The hatching period is 37 There was a period of time before, the kerosene lamp kang chicken (hatching chicken) was very prosperous, the 200w incandescent lamp hatched, the old clean cotton jacket was padded below, and the old cotton jacket was covered on the top, and put it in a wooden box or cardboard box, the lamp should not be too high from the box mouth, nor too close, and the light would be a little warm. In this process, the eggs should be turned every three or four hours, and the temperature should be between 20 and 30 degrees.

Soundtrack: Wang Jihua, Zhang Junpeng.

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