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Big goose breeding technology
The fifth is the power outage for a longer period of time, should take emergency measures: the hatchery doors and windows closed, as much as possible to keep the room temperature at 27-30 °C, should not be less than 25 °C. In the event of a power outage, the power to all incubators is cut off to prevent all incubators from being activated when the call is received, and the current is blown off over the ambassador's fuse. When the electricity is turned on, it should be started separately one by one according to the specific conditions of each incubator. After the power outage, the uniform temperature device does not work, and the temperature difference between the egg trays in the machine is increased. Therefore, it is necessary to manually turn the eggs once every half hour, and if necessary, the upper and lower plates are used to adjust the temperature. Temperature measurement method is generally used eyelid thermometer, thermometer is for reference only. If it is a short-term power outage within the plan, it should be warmed up slightly before the power outage; if it is a regular short-term power outage, it is necessary to appropriately adjust the temperature program according to the accumulated temperature. For pre-hatching embryos, in the event of a power outage not exceeding 12 hours, the incubator's door and stomatal orifices need only be closed; in the mid-hatching embryos, in case of power failure, the egg temperature should be checked once every 3 hours, if necessary, Plates, cool eggs; Late embryonic eggs, in case of power outages, except for individual cases, should be opened before and after the door to open the temperature, because at this time embryonic egg metabolism of excess heat, while measuring temperature once every 2 hours to prevent heat Dead or suffocated embryos. Sixth, fill in the hatching records. When hatching production, hatchery records must be prepared. It helps to analyze the hatching effect, and also helps the hatchery to calculate and analyze the production and business indicators. Straw bed hatching method Stall bed hatching method is one of the traditional hatching methods in China. According to the characteristics of embryonic development of geese, their own heat production at the later stage is relatively high. Therefore, many places still use hatched beds to hatch at later stages of hatching. Built in the upper part of the original incubator, it does not occupy the ground. This incubation method is still in common use. The main equipment for hatching the bed is the shared bed. The bed is a wooden bed type long shelf with 2-3 floors. The length of the bed is equal to the length of the house. The width of the bed is not more than two people's arm length to facilitate the opposite operation. In Jiangsu and Zhejiang, the beds were spread on a wooden shelf and reeds or bamboo strips were made into a long seat. Several layers of rice straw were spread on 5-10 cm, and the mats were placed on top of the shelves. At the edge of the bed is a board of 15-20 cm high. A "strip" is placed inside the wooden board, which is a long circular bag made of coarse cloth, filled with rice hull, sawdust or old cotton wool, and used for heat preservation and preventing the embryos from colliding with the wood. There are two vertical and horizontal spans, which are 60 cm and 30 cm longer than the length and width of the bed, so that they can be folded back to help keep warm. The vertical and horizontal bars have a diameter of 10 cm and 6 cm, respectively. In order to facilitate the operation, it is necessary to install a fixed ladder on the bedstead and it is convenient to go up and down. Generally, the distance between top and middle stalls, middle stalls and down stalls is about 80 centimeters, and the lower stalls cannot be close to the incubators below. The width of the top booth should be 5 cm narrower than the medium booth, and the medium booth should be 5 cm narrower than the lower one. The lower and middle stalls are used frequently, and the top stalls are used only when the middle and lower stalls are not enough. In Iian County, Heilongjiang Province, the stalls for the hatching of large geese were built 1.1 meters away from the ground. The main consideration was the ease of operation. In order to keep warm, more quilts cover the bed. After the second shot, the goose eggs can be warmed on the bed. The eggs on the side of the bed are easy to dissipate, the temperature of the eggs is lower; the eggs in the middle, the temperature of the eggs is higher. In order to maintain proper and uniform temperature throughout the entire bed, the following measures should be taken to adjust the temperature. Turning eggs, commonly known as “grabâ€, is to swap the position of the middle egg and the edge of the egg, and it is usually turned twice a day and night. If the temperature difference between the edge of the egg and the center of the egg is too large, you should increase the number of turning eggs, such as a small temperature difference, you should reduce the number of turning eggs, can be turned 1 or 2 times a day turn. When turning the egg, the two people face each other on both sides of the bed, stretched their hands toward the center of the egg, pulled it to the side, and then put the two arms against the mat, stretched out at right angles, and pushed the egg to the center until it was full. After the batch is over, cover the quilt. Adding or removing covers is the main method of adjusting the temperature of the eggs on the stalls. According to the embryonic age, room temperature, and egg temperature, how much the cover is to be grasped. In general, after the egg is turned over, the cover is more, and when the temperature of the egg is normal, some of it will be lost. As soon as the embryos and eggs on the stalls are warm, the temperature of the eggs on the side is too low to cover more points, commonly known as "covered edges." In the process of raising the temperature after the cover is added, if some of the eggs in the same site have reached the temperature increase requirement, and some have not reached the standard, the quilt can be overturned and covered, and part of the heat inside the quilt is dissipated, so that the temperature of the egg is easily uniform . When the temperature rises after going up, check the temperature once every 2-3 hours and diligently lift the ground. Embryos have a high density and are easy to heat up; they have a low density and are conducive to heat dissipation. In the hatchery, the eggs can be placed in a double layer, commonly known as "dual booths." As the egg temperature rises, it is replaced by the lower embryonic egg, like a chessboard; the upper embryonic egg is thin, like a chess piece, and is called a chess game. Then put the eggs in double layers, commonly known as "edge", and then go back to full lay. In general, if a goose egg is spread on the second photo, it is all laid flat. Opening and closing doors and windows can adjust the room temperature, indirectly affect the incubation temperature of the stall. Bedding hatchery practices differ from one place to another, but the basic principle is to adjust to the “preferable temperatureâ€.