The biggest expense for keeping laying hens is feed. Grasping the amount of feed each hen's growing period can increase the economic benefit of raising chickens. The author summarizes the practice experience of chicken raising for more than 30 years. Now the scientific method for layer chickens is summarized as follows.
1. Chicks less than 10 days of age: Daily consumption of grams per bird = days +2. For 6-day-old chicks, the number of grams consumed per day is: 6+2=8 (g).
2.11-20-day-old chicks: Each daily feed quantity = day-age +1. For example, for 15-day-old chicks, the daily feed amount is: 15+1=16 (g).
3.21-50-day-old chicks: Each day, the number of grams used is the same as the day of chicks. For 28-day-old chicks, 28 grams per day is used.
4.50-150-day-old chickens: The daily feed amount per bird is 50+ (days-50)2. For 100-day-old young chickens, the daily feed amount per bird is 50+(100-50)2=75 (g).
5. For broilers up to 150 days or more, the daily feed amount of each chicken can be stabilized at 100 g or more.
According to the above scientific method, one hen can accumulate 8.84 kg at the age of 150 days. The use of 36.5 kilograms of material per year for laying hens can basically meet the need for egg production, and at the same time can avoid feed wastage, so as to obtain high efficiency of raising chickens.
For medical or medical disinfection and sterilization, suitable sterilization methods include EO ethylene oxide sterilization, steam high temperature and high pressure steam moist heat sterilization, and gamma cobalt 60 irradiation sterilization. Its use method and effect: medical devices are packed into packaging bags and then sealed for sterilization and disinfection. The packaging bags are used to pass sterilization factors and do not pass through the semi-dialysis permeability of bacteria, and then the professional institution Soochow University Medical Testing Institute conducts EN868 After professional testing, it is shown that the aging of the packaging bag can reach 3 to 5 years. Objects: medical gloves, medical syringes, hemostatic gauze, surgical hole towels, medical catheters and tracheal intubations, surgical gowns, intravascular catheters, indwelling needles, electrosurgical pens , Heparin cap, three-way stopcock, roar cover, balloon, artificial joint, occluder and other medical consumables packaging and high-end medical equipment packaging.
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