Egg rearing and management of laying hens
Modern egg laying tends to have a long peak of egg production, which generally takes 6 months or longer. The egg production at the peak of egg production accounts for more than 65% of the total egg production in the whole period, and the egg production weight accounts for more than 63% of the total egg production. If the stocking hens are poorly cultivated and the egg production stage is poorly managed, the peak period of egg production will be shortened, and the peak value will be low on the peak. Therefore, the feeding and management of laying hens during the laying period cannot be ignored. First, peak egg production management 1 Adapt to nutritional needs The daily intake of nutrients in laying hens is mainly used for weight gain, egg production expenditure, basal metabolism, and breeding activities. If the weight is reduced at the peak of egg production, it means that the nutrients in the laying hens are used excessively, which may reduce the egg production rate. When designing a feed formulation, exact nutrient standards are calculated according to the daily requirements of hens for energy, crude protein, amino acids, calcium, phosphorus, and the like. When adjusting the nutrient concentration, it should be based on changes in the egg production stage and changes in feed intake. The focus should be on the changes in the two major elements of energy and protein, and the supply of calcium, phosphorus, and vitamins. 2 Improve feed quality Laying chickens should use high-quality feed during the peak period of laying, and should not use feeds that are stored for too long, infested, moldy, or contaminated raw materials. In addition, the amount of cakes such as sunflower seeds, cottonseeds and rapeseed should not be excessive. 3 maintain stable light The duration of light during the laying period should be maintained between 15-16 hours. Artificial light fill time should be kept stable, such as a sudden blackout in the chicken house, shorten the light time or weaken the light intensity, can make egg production rate decreased. 4 prevent stress reaction There are many factors that cause stress response in laying hens. Predictable stress factors should be prevented before they occur. According to the requirement of vitamins during the stress period, increase the supplement volume. It should be noted that the feeding and management procedures should be standardized, with regular feeding and adequate water supply. Do not arbitrarily change the operating procedures, such as feeding, quail eggs, defecation and other work disorders, can lead to decreased egg production; pay attention to the maintenance of equipment, such as pipe plugging after maintenance is not timely and cause water supply barriers, it will also affect the production of eggs Volume; Abnormal sounds, sudden appearances of strangers, animals, sudden changes in feed, disease, weather, etc. all can cause severe stress responses in chickens. Second, the analysis of the reasons for the absence of egg production peak In the production of laying hens, it is often encountered that some chickens cannot enter the production peak or the duration of egg production peaks is short. A comprehensive analysis of common causes is as follows: 1 Breeding chickens do not meet the standard In some farms, the stocking density is constant from the chickens to the colony, and they cannot be grouped on time in the early stage, resulting in difficulty in reaching the body size and weight of laying hens at 6 weeks and directly affecting the quality of brooding. Most chicken farms do not have bred cages. Chicks are raised in brood chambers until 8-10 weeks of age and are transferred directly to laying hen houses. In the late brooding period, the temperature in the house was too high, the ventilation was poor, and the birds were overcrowded. After entering the egg house, slow development and difficulty in drinking water by individual small chickens. In addition, the factors such as large stress, improper management, and diseases caused the poor evenness of the chicken population. The average body weight was lower than the standard lower limit. The egg age was uneven and the egg production rate climbed for a long time. Do not go, the peak duration is short, the egg weight is light, and the rate of death scouring is high. 2 feed quality problems The feeds currently sold on the market have uneven quality, insufficient content of active ingredients and unstable feed quality, such as sudden changes in feed energy and protein during the production period, lack of essential amino acids, insufficient vitamins, unbalanced calcium and phosphorus, and excessive salt levels. Low, trace element additives can not get long-term compensation and other factors, all have a significant impact on egg production. The feed hygiene was not up to standard, and pathogenic E. coli, Salmonella, mold, etc. were seriously exceeded. Poultry palatability is poor, particle size is too large or too small, ash is too high, acid, water is too large, uneven mixing can cause egg production performance. 3 Feeding management is not scientific 1 temperature control. The optimum temperature for laying hens is l3°C-23°C. Due to the poor insulation of chicken house facilities in the cold season, the temperature in the house is reduced to below 5°C, causing a drop in egg production. During the hot season in summer, the cooling measures are unfavorable and the temperature in the house exceeds 28°C, which affects the feeding and laying of eggs. 2 Insufficient sunshine and drinking water. The most obvious is the chickens at the peak of egg production. Sudden power cuts and water cuts during the hot season have a great impact on egg production. In the summer, when the water is cut off for one hour, the body needs to compensate for 24 hours, and the egg production rate during the peak period is reduced by 10%-20%. 3 extensive management. If the feeding is not timely, the ingredients are not uniform, the sink leaks and cannot be cleaned and disinfected, the chicken is not scientifically disinfected, and the water quality is poor. 4 disease infringement The incidence of infectious bronchitis, atypical Newcastle disease, the presence of infectious flu rhinitis, mild flu, and E. coli disease has reduced egg production. If the above diseases are complicated, the drop in egg production will be more pronounced. Garden Supply Store,Indoor Gardening Supplies,Landscape Supplies,Magic Garden Supplies Changzhou Satidi Import and Export Co., Ltd. , https://www.czguanjiechuck.com