First, use high quality feed
The use of high-quality feeds is a necessary condition for the production performance potential of laying hens. It can prolong the laying period of laying hens, from 72 weeks to 100 weeks, and the number of laying eggs can be significantly increased at 72 weeks, and the rate of dead scouring is reduced. Less than 8%, feed utilization increased 2.3 to 2.2:1.
The internationally recommended nutrient standard is: In the peak period of egg production, the common layer chicken Hyaluronicus consumes 17 grams of crude protein (16.5%) per day, metabolisable energy 2778-2867 kJ/kg, and calcium 4 g (3.88%). 0.44 g (0.43%) of available phosphorus and 0.448 g (0.43%) of methionine.
Domestic standards are: metabolic energy 2700 kJ/kg, crude protein 16.5%, calcium 3.5%, methionine 0.37%. Of course, it is not necessarily too accurate, because raw materials are more difficult to grasp.
When diets are designed, they should be based on digestible amino acids, because layer chickens need not protein but protein amino acids. Some amino acids in the diet (usually 10% to 15%) cannot be digested, but are excreted with feces. The digestibility of soybean methionine was 91%, the digestibility of methionine in meat and bone meal was 85%, and the digestibility of methionine in cottonseed meal was 72%.
The feed during the laying period should be scientifically proportioned according to the feed intake of the laying hens. The feed intake is influenced by such factors as the hen's weight, age, egg production rate, egg weight, ambient temperature, feed texture, and other factors. For example, increasing egg weight can be achieved by increasing the body weight, increasing the protein or individual amino acid content (methionine is commonly used to change the egg weight), and adding fat or oil in appropriate amounts.
Second, to use raw materials correctly
1. Correctly add vegetable oil. Adding vegetable oil to the layer chicken feed must be appropriate, otherwise it will affect the layer weight and egg production rate.
2. Disable cyromazine. When summer arrives, it is a mistake for many farmers to add cyromazine to the feed of laying hens in order to eliminate mosquitoes and flies. Studies have pointed out that in many long-term or chronic toxicological studies, cyromazine, also known as cyromazine, can cause breast tumors in animals. Its metabolite, melamine, can cause bladder tumors. Moreover, cyromazine and melamine are Residues in layer chickens affect food safety. The correct method is to use live micro-ecological preparations, the effect is more obvious, avoid the use of dried dead bacteria products, increase the cost and see no effect.
3. The correct use of enzyme preparations. If the activity of phytase is not the same as that controlled by companies, some enzyme preparations will be unstable, which will lead to excessive phosphorus in feed and cause the quality of eggshell to decline. This phenomenon is very common nowadays and should be taken seriously.
Third, the concept of healthy breeding
Standardized chicken farms are the foundation for healthy farming. What is a standardized chicken farm? General requirements of the site away from the village 500 meters, away from the factory or mine 3 kilometers; have independent functional area planning; chicken house has the environment and temperature control facilities, so that the air meets the standard, the temperature is appropriate; feed in line with the national standard; manure to achieve harmless treatment, The net road and the sewage road should be separated, and the fecal field should be covered; when it reaches a certain amount of feeding, it will be all in and out.
There are roughly five reasons for the low production level of laying hens in China:
First, the facilities for raising chickens are simple. Most of the farmer's chicken-raising houses are informal, and the cages are simple. In particular, there are no drinking facilities, there is no nipple drinker, and there is basically no environmental control equipment;
Second, the living environment is poor, the manure treatment facilities are simple, and chickens live together;
Third, breeding breeds, brown shell, white shell, powder shell, green shell, chicken, chicken, hybrid chicken, broiler chicken;
Fourth, the disease is becoming more and more complex and difficult to control;
Fifth, it is the use of drugs indiscriminately, such as overdose of antibiotics.
The concept of healthy breeding is: to raise weight to prevent and prevent weight to cure.
Select breeds of high-quality, disease-resistant varieties; achieve high-quality pollution-free production, eliminate green eggs, rubber eggs, black eggs, etc.; control livestock breeding environment, including the harmless treatment of chicken manure; ensure the key to breeding The security of the link enables product quality to be traceable.
How to achieve a healthy culture?
First, in intensive culture areas, it is necessary to standardize the management, it is best to achieve the entire village all in and out, the whole village unified management, eliminating the hidden dangers of larger infectious diseases.
Second, feed the full-priced feed suitable for healthy farming, change the low-quality and low-price competition into high-quality, competitive-price competition, and make full use of local feed resources to prevent toxic and hazardous substances from entering the feed and ensure the high efficiency of the layer and the quality of the eggs.
Third, control the small environment of the chicken house, such as temperature, humidity, light, ventilation, etc., to reduce the chicken's stress, improve the health of the flock and production efficiency.
Fourth, the use of live bacteria fermentation of traditional Chinese medicine microbial feed additives (fourth generation probiotics), can prevent disease, but also can improve immunity, improve feed utilization, reduce the rate of dead Amoy.
The stocking of high-yielding layers of woodland is also a means of healthy breeding. Attention should be paid to solving the problem of laying chicken nests and the impact on the ecological environment, and trying to improve the taste of eggs.
In short, we must believe in science, reduce the ratio of eggs and eggs, believe in management, and increase the evenness of eggs. We believe that facilities, such as mechanical feeding, will consume less 1 kg of feed per bird. It is believed that the performance of domestically produced varieties and egg-borne diseases will be no problem after purification.
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