The hatching rate is related to the benefit of quail breeding and how to improve the hatching rate of quails.

The hatching rate of quails directly affects the utilization rate of breeding eggs, the health of quails in the nestling stage and the production performance in the future. The following measures should be taken to improve the hatchability of quails.

Quail hatching

First, breed eggs. The egg beard is fresh, clean and the shorter the time is, the better, within 1 week after delivery and 5 days after delivery. After more than two weeks, the hatching rate decreases, and the young quail has a weak physique. Quail eggs should be of moderate size and shape, excluding too small or too large, rough "sand-preserved eggs" and hard "steel shell eggs". The eggshell is thin, which is not only fragile, but also the water in the egg evaporates quickly, which destroys the normal material metabolism and is disadvantageous to improve the hatching rate.

Second, the hatchery. It requires good heat preservation, convenient ventilation, cleanliness and hygiene, and quiet environment. If you use an ordinary electric incubator, the effect is better. Before hatching, hatchery, incubator fumigation disinfection, per cubic meter with 5.5 grams of potassium permanganate, formalin 11 tons, first put potassium permanganate into ceramic dishes, and then into formalin, immediately produce smoke. Close the doors and windows quickly, and half an hour later, open the door to clear the fog. This makes all cracks and corners can be thoroughly disinfected, improving the rate of healthy chicks and the rate of hatching.

Third, temperature. Temperature is an important factor for quail hatching, which determines embryo growth, development and productivity. Mastering temperature is the primary condition to improve hatching rate. When the whole batch is hatched, the temperature can be supplied by the method of "high in the front, flat in the middle and low in the back". The temperature was 38 ℃ in the early stage (1ml 6 days), 37.8 ℃ in the middle stage (14 days) and 37.7 ℃ in the later stage (15 mi 17 days). When hatching in batches, the principle of "flat in front and low in back" is adopted. If one batch is hatched every 5 days, 38 ℃ is used after the first batch is hatched, and on the 6th day, after the second batch is hatched, the temperature is adjusted to 37.8 ℃, and the same temperature is also used in subsequent batches. After 15 days of transfer to the embryo, the condition of 37.7 ℃ was adopted.

Fourth, humidity. The humidity of the incubator should be 50% 55%. When you start to hatch, the humidity is slightly higher than usual. The humidity should not be too high, otherwise the quails will be suffocated by lack of oxygen. If the humidity is too low, it will make the fledgling quail short and thin, easy to adhere to the eggshell and difficult to break the shell.

Fifth, ventilation. When hatching, the air in the machine must be kept fresh, the wind speed is normal, the size and position of the vent is appropriate, and the rotation of the fan should not be too slow or too fast.

Turn over the eggs. When hatching quails, the same batch of quail eggs should be numbered with the blunt end of the quail eggs facing up, so that the air chamber can be kept in a normal position and the fetal position can be reduced. The eggs were turned 12 times a day, hatched for 5 days and 10 for 12 days respectively, and the azoospermic eggs and dead embryo eggs were removed.

Seventh, hatching treatment. On the 15th day of incubation, the quail eggs on the hatching rack are moved into the hatching machine. Increase the humidity, lower the temperature, and prepare for brooding. During the hatching period, depending on the shell situation, pick out the empty shell eggs and fleece dried quails, in order to continue to hatch and improve the hatching rate.