Some duck farmers in rural areas raise ducks and ducks and raise them for three or four years. Some even raise them to their natural age. The duck farmer knows that the duck production rate is low and can still not be eliminated. I do not know how long to raise old ducks, not only consume about 150 grams of feed per day, and the production of eggs is very small, or even eggs, so that the entire duck population economic benefits. So, how long is the production of ducks in the end to be more profitable? According to the optimal egg production date of the duck, from the time of hatching to about 120 days of age, the egg production rate is the highest in the first egg production year, and the annual production weight of the confinement duck can reach 20 kg. By the second year of egg production, it will generally decrease by 5-10%, and by the third year of laying, it will drop even more. The lazy duck has poor mobility, difficulty in herding and feeding, poor adaptability to climate change, high feed consumption, and low utilization. According to many duck farmers, the old duck also consumes about 20% more feed than the new duck. According to the high egg production rate of ducks during the first egg production year, the feeding and management at this stage should be strengthened so that the entire duck population can exert its maximum production potential within the optimal production period. After the first year of production, it is necessary to selectively eliminate ducks based on their egg production, remove low-yielding ducks, and retain high-yielding ducks. The most reliable way to eliminate low-yield old ducks is to duck those ducks that have been initially identified as low-yielding, and then use a finger to touch the mouth of the laying duck and touch the eggs. For example, if you touch 100 ducks, 10 of them do not produce eggs, you can isolate them and touch them the next day or the third day. If you do not lay eggs three or four times, you can safely eliminate them. However, the new ducklings that were cultivated in the spring were not to be eliminated even if the egg production rate was low, because they only produced eggs for two months because of the natural environment. If the management is strengthened in the coming year, the egg production rate can rebound significantly. There is still use value. When ducks are raised to 500-600 days of age, it is necessary to judge whether ducks need to be kept according to the market price of duck eggs and feed. If the sales revenue of duck eggs is greater than the feeding cost of old ducks, the entire duck group can still be raised; otherwise, it means that these ducks are no longer profitable, and all old ducks should be eliminated. High Precision Machining,Cnc Turning Machining,Cnc Machining,Cnc Precision Machining Changzhou Ziying Metal Products Co., Ltd , https://www.ziyingmetal.com