New high-yielding technology for laying hens in summer
Summer heat is hot, and the feeding of layers is reduced, the egg production rate is reduced, the egg weight is reduced, the eggshell is thinned, and even egg production stops. In order to ensure stable production and high yield of laying hens, fine tubes must be fed. 1, heatstroke cooling: the optimum temperature for laying hens is 13 ~ 25 °C. For this reason, shade shelters should be set up in the sheds' sports venues to avoid direct sunlight, doors and windows and air vents should be opened, air circulation should be maintained, and white paint should be applied to the outside walls of chicken houses. Adhere to the early morning late closing. 2, adjust the structure of the diet: appropriate to reduce dietary energy feed, increase soybean meal, fish meal, aphids, cockroaches, fish, shrimp, cocoon, feed yeast, meat and other protein and mineral rich feed. The protein content of 18% to 20%. At the same time, supply enough green and blue juicy ingredients. 3, carefully feeding: focus on early and late cool when feeding, avoid midday feeding. Mixed feed should be fed along with the mix, not overnight. Add high quality fresh and clean green and juicy materials, cut them properly, and do not feed rot, mold, yellowing, or forage feeds with pesticides. Daily fresh and clean drinking water, add a small amount of salt and chili powder, but the amount should not be too much, increase the layer of chickens appetite. 4, to prevent stress: 0.1% fumaric acid in the feed, 0.05% vitamin B12 and vitamin C, 50 to 100 mg / kg bacitracine zinc, 0.15% ammonium chloride feeding; add 0.63% saline in drinking water and 0.2% Baking soda and other substances can inhibit central nervous activity and significantly increase chicken heat stress. 5, a reasonable cut feathers: chicken body surface without sweat glands, the layer can be chest, abdomen, thighs, feathers under the wings cut, leaving only 1 cm long, can increase the egg production rate of 15% to 20%. 6, a reasonable density and light: appropriate to reduce the breeding density of laying hens; general ground chickens per square meter 3 to 4 is appropriate, increase the habitat, prevent chicken resting in the egg carton. It is better to raise chickens by 10 bases per square meter. When Shewenda is more than 25°C, intermittent light is used, ie 10 hours of light (from 8:00 am) → 5 hours of darkness → 2 hours of light → 7 hours of darkness can increase the egg production rate by 5% to 10%. 7. Scientific calcium supplement: Eggs need about 4 to 4.4 grams of calcium per egg. For this reason, the dietary calcium content of laying hens is preferably 3% to 3.5%. Every day from 12 noon to 6 pm, it is best to feed chickens with high calcium diet. General dietary calcium and phosphorus ratio of 2:1 to 1:1 level of higher absorption rate, while requiring the addition of vitamin D and vitamin C in feed, is conducive to promote the absorption and utilization of calcium, improve eggshell hardness and egg production . 8, anti-laying layer of chickens: add 5% of the heat in the feed hemp kernel fed chicken, or to intramuscular injection of testosterone propionate (25 mg each), or to painkillers (2 tablets each) , Isoniazid (1 tablet each), ephedrine (1 tablet each) and other drugs are fed to prevent and control the chicken's "bump." 9, do a good job of health and epidemic prevention: To remove the manure in a timely manner, cleaning the feeding trough and sink, every 3 weeks to 3% with Sur solution or 20% lime milk disinfection of the house. Regularly spray insecticides on the walls, egg boxes, perches, and the surrounding environment to prevent chickens and flies from biting chickens. There is a sand trap in the hen house. Put a proper amount of sulfur and lime in the broiler to allow the chicken to bathe in sand and kill the body parasites. Always add 0.5% potassium permanganate to drinking water in drinking water. Regular injection of a variety of disease (bacteria) seedlings to prevent the occurrence of infectious diseases, feed sulfa-6-methoxyl, chlorophenyl hydrazine, an allyl chloride, coccidia net feeding coccidiosis control.