When the chicks are 7 weeks old, they are transferred to the breeding house and begin to enter the rearing stage. The success of this stage of cultivation determines the constitution and egg production performance of laying hens after sexual maturity. Therefore, it is necessary to breed high-yielding layer chickens that meet the breed requirements. The key is to grasp the rearing and management of broiler chickens.
First, do a good job inside and outside the chicken house disinfection, create a safer living environment for the chickens Many diseases of the egg farm is caused by horizontal transmission, so the disease, through the disinfection of the chicken house, the surrounding environment and the chicken body, cut off the disease The horizontal communication is an effective way to control the occurrence of diseases and reduce the death of chickens. Specific technical measures taken are: 1 first into the chicken 2 weeks before the first thorough cleaning, cleaning the chicken house, and then use 100 poison or Aidi Fu disinfection and disinfection of drugs. 2 Formalin plus potassium permanganate, according to the proportion of 30 ml plus 15 grams of fumigation, sealed 1 to 2 days, and pay attention to improve the temperature and humidity in the house to improve the disinfection effect. 3 One day before entering the chickens, spray the disinfection solution with superior chlorine or iodine preparation disinfectant once. The ground is disinfected with a 1% to 2% solution of caustic soda. 4 Chickens are sterilized once or twice a week after entering the chickens. Disinfectant drugs are used alternately to avoid the emergence of drug resistance. It is sterilized 2 to 3 times a week during the most frequent seasons of the disease. Hot summer disinfection once a day, but also play a certain role in the cooling effect of sunstroke.
Second, according to the weight of the flock and body condition to provide different formula feed, to develop the best weight, size of the flock in the bred chicken in the cultivation process, to regulate the optimal body weight of the flock, can not simply be based on age The changes in the feed formulation must be based on the growth and development characteristics of the broiler, the weight and body condition of the flock, and feed formulation. In the production of chickens, we often encounter such chickens, due to the frequent immunization during the breeding period, summer heat, disease, adverse environment and other stress factors, resulting in chickens at the end of the brood at the end of the weight. Therefore, we should adopt different nutritional countermeasures for different groups of chickens to "correct" them. The specific measures taken are: after the chickens are transferred into the rearing rooms, continue to feed the chicks and fully utilize the potential for rapid weight growth before the age of 12 weeks, so that the weight of the chickens can reach the standards provided by the breeding company as soon as possible, and the body weight can meet the standard. At the upper limit, the chick material is gradually replaced with a lower nutrient concentration and fed until the desired sexual maturation weight is reached. The level of dietary nutrition recommended at this stage is: crude protein 18% to 19% and metabolic energy 11.50 to 12.13 MJ/kg. The other type is chickens whose body weight approaches or reaches the standard at the end of the brooding period. The following measures can be taken to treat such chickens: After the chickens are transferred to the breeding house, after a week of recovery, when the weight reaches the upper limit of the standard, the chicks will be fed. Gradually replaced feeds with lower nutrient concentrations and monitored for weight to prevent birds from overweight and overweight. When there is a phenomenon of overweight, do not rush to reduce the amount of material, and keep the amount of feed for the previous week to keep the body weight at a uniform rate to prevent weight loss and affect the performance of the future. The level of dietary nutrients recommended at this stage is 15% to 16% of crude protein and 11.75 to 12.13 MJ/kg of metabolizable energy. In recent years, due to the continuous improvement of breeds, chickens have emerged with new features such as early maturation, reduced body weight, and low intake of feeds, plus a series of stress factors, and the use of existing equipment and the reduction of stocking densities. In the large commercial layer flocks, overweight is not common. The author's experience is that the restriction of feeding is not as important as the breeding chicken, as long as we pay attention to the balance of energy and protein in the diet. The completeness of other nutrients will ensure that the broiler chickens will have a good growth and development status, and there will be no small body fat chickens.
Third, group management, improve the uniformity of the chicken group is an important measure of the quality of reserve chickens, improve the uniformity of broiler chickens, reduce the number of fat chickens and lean chickens, avoid feed waste, reduce The mortality rate also allows the chickens to reach the peak of the egg production on time, and the peak value is high and stable, and the duration is long and the egg is produced. Some studies have reported that on the basis of 70% uniformity, the chicken has more than 4 eggs per 3% increase in uniformity. Therefore, improving uniformity is one of the fundamental measures for raising broiler chickens. In the breeding period, the most effective measure to improve the evenness of the flock is group management. The specific measures are as follows: randomly measure the uniformity of the flock by 10%, and use the standard weight of the breed as an index to divide the flock. For overweight, suitable, and less than three groups, weeded chickens and overly thin chickens were adopted. For substandard and slow-growing but still healthy chickens and small-bodied chickens, stimulating appetite and feeding protein levels were higher. Feed the method so that it reaches the maximum nutrient intake, as soon as possible to catch up with the standard weight. Excessively weighted chickens are restricted to feed and avoid excessive fat. Throughout the entire breeding period, weighing is performed once every two weeks, and the birds are adjusted in time according to the results of the measurement; otherwise it is difficult to remedy the chicken whose weight is too low when approaching maturity; chickens with more weight are more severely restricted. So as not to affect the development of the reproductive system.
Fourth, light management, control of timely maturity of chickens on the breeding of chickens to control the time and intensity of light, is to control its maturity at the right time one of the main means. The basic principle of lighting is: no increase in lighting time and intensity during the breeding period, the specific measures are: control of light intensity in the 5 lux, this can not only save electricity, but also can prevent the occurrence of earthworms. Illumination time control: It is easier to formulate a light system for closed chicken houses. Since the light is not affected by the natural seasonal changes, the light time and intensity are completely controlled by humans. Therefore, a constant and decreasing light system can be adopted for the open type. The establishment of a light system for a semi-open house is relatively cumbersome, and a specific lighting system should be determined based on the hatching time.
In short, to make full use of the genetic potential of laying hens, reflecting high levels of production and ensuring good economic benefits, it is necessary to provide reasonable nutrition supply and feeding management procedures according to the growth and development of hens and the characteristics of physiological changes. chicken.
First, do a good job inside and outside the chicken house disinfection, create a safer living environment for the chickens Many diseases of the egg farm is caused by horizontal transmission, so the disease, through the disinfection of the chicken house, the surrounding environment and the chicken body, cut off the disease The horizontal communication is an effective way to control the occurrence of diseases and reduce the death of chickens. Specific technical measures taken are: 1 first into the chicken 2 weeks before the first thorough cleaning, cleaning the chicken house, and then use 100 poison or Aidi Fu disinfection and disinfection of drugs. 2 Formalin plus potassium permanganate, according to the proportion of 30 ml plus 15 grams of fumigation, sealed 1 to 2 days, and pay attention to improve the temperature and humidity in the house to improve the disinfection effect. 3 One day before entering the chickens, spray the disinfection solution with superior chlorine or iodine preparation disinfectant once. The ground is disinfected with a 1% to 2% solution of caustic soda. 4 Chickens are sterilized once or twice a week after entering the chickens. Disinfectant drugs are used alternately to avoid the emergence of drug resistance. It is sterilized 2 to 3 times a week during the most frequent seasons of the disease. Hot summer disinfection once a day, but also play a certain role in the cooling effect of sunstroke.
Second, according to the weight of the flock and body condition to provide different formula feed, to develop the best weight, size of the flock in the bred chicken in the cultivation process, to regulate the optimal body weight of the flock, can not simply be based on age The changes in the feed formulation must be based on the growth and development characteristics of the broiler, the weight and body condition of the flock, and feed formulation. In the production of chickens, we often encounter such chickens, due to the frequent immunization during the breeding period, summer heat, disease, adverse environment and other stress factors, resulting in chickens at the end of the brood at the end of the weight. Therefore, we should adopt different nutritional countermeasures for different groups of chickens to "correct" them. The specific measures taken are: after the chickens are transferred into the rearing rooms, continue to feed the chicks and fully utilize the potential for rapid weight growth before the age of 12 weeks, so that the weight of the chickens can reach the standards provided by the breeding company as soon as possible, and the body weight can meet the standard. At the upper limit, the chick material is gradually replaced with a lower nutrient concentration and fed until the desired sexual maturation weight is reached. The level of dietary nutrition recommended at this stage is: crude protein 18% to 19% and metabolic energy 11.50 to 12.13 MJ/kg. The other type is chickens whose body weight approaches or reaches the standard at the end of the brooding period. The following measures can be taken to treat such chickens: After the chickens are transferred to the breeding house, after a week of recovery, when the weight reaches the upper limit of the standard, the chicks will be fed. Gradually replaced feeds with lower nutrient concentrations and monitored for weight to prevent birds from overweight and overweight. When there is a phenomenon of overweight, do not rush to reduce the amount of material, and keep the amount of feed for the previous week to keep the body weight at a uniform rate to prevent weight loss and affect the performance of the future. The level of dietary nutrients recommended at this stage is 15% to 16% of crude protein and 11.75 to 12.13 MJ/kg of metabolizable energy. In recent years, due to the continuous improvement of breeds, chickens have emerged with new features such as early maturation, reduced body weight, and low intake of feeds, plus a series of stress factors, and the use of existing equipment and the reduction of stocking densities. In the large commercial layer flocks, overweight is not common. The author's experience is that the restriction of feeding is not as important as the breeding chicken, as long as we pay attention to the balance of energy and protein in the diet. The completeness of other nutrients will ensure that the broiler chickens will have a good growth and development status, and there will be no small body fat chickens.
Third, group management, improve the uniformity of the chicken group is an important measure of the quality of reserve chickens, improve the uniformity of broiler chickens, reduce the number of fat chickens and lean chickens, avoid feed waste, reduce The mortality rate also allows the chickens to reach the peak of the egg production on time, and the peak value is high and stable, and the duration is long and the egg is produced. Some studies have reported that on the basis of 70% uniformity, the chicken has more than 4 eggs per 3% increase in uniformity. Therefore, improving uniformity is one of the fundamental measures for raising broiler chickens. In the breeding period, the most effective measure to improve the evenness of the flock is group management. The specific measures are as follows: randomly measure the uniformity of the flock by 10%, and use the standard weight of the breed as an index to divide the flock. For overweight, suitable, and less than three groups, weeded chickens and overly thin chickens were adopted. For substandard and slow-growing but still healthy chickens and small-bodied chickens, stimulating appetite and feeding protein levels were higher. Feed the method so that it reaches the maximum nutrient intake, as soon as possible to catch up with the standard weight. Excessively weighted chickens are restricted to feed and avoid excessive fat. Throughout the entire breeding period, weighing is performed once every two weeks, and the birds are adjusted in time according to the results of the measurement; otherwise it is difficult to remedy the chicken whose weight is too low when approaching maturity; chickens with more weight are more severely restricted. So as not to affect the development of the reproductive system.
Fourth, light management, control of timely maturity of chickens on the breeding of chickens to control the time and intensity of light, is to control its maturity at the right time one of the main means. The basic principle of lighting is: no increase in lighting time and intensity during the breeding period, the specific measures are: control of light intensity in the 5 lux, this can not only save electricity, but also can prevent the occurrence of earthworms. Illumination time control: It is easier to formulate a light system for closed chicken houses. Since the light is not affected by the natural seasonal changes, the light time and intensity are completely controlled by humans. Therefore, a constant and decreasing light system can be adopted for the open type. The establishment of a light system for a semi-open house is relatively cumbersome, and a specific lighting system should be determined based on the hatching time.
In short, to make full use of the genetic potential of laying hens, reflecting high levels of production and ensuring good economic benefits, it is necessary to provide reasonable nutrition supply and feeding management procedures according to the growth and development of hens and the characteristics of physiological changes. chicken.
Pork is a very common meat in life, especially in China. Pork consumption is much higher than other meats and is the main source of meat. Pork tastes and tastes very good, it doesn't get tired when you eat it regularly, and it has a variety of practices. It can be delicious with a variety of ingredients.
Although the pork chop is made of pork, it has no fatty feeling at all, and it is particularly chewy. It is processed through many processes, not to fry or cook pork. The pork that is made out has a lot less oil, and the feeling of eating meat is particularly cool. The authentic pork chop uses the pig's hind leg meat. This part of the meat is mainly lean meat, and the fat is rare. It is more suitable for pork. breast
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