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Prevention: During the early, middle, and late stages of free-range broiler production, proactive prevention is key to preventing parasitic diseases. Specific measures are as follows: 1, carry out deworming properly. Deworm broiler chickens for the first time one month before th…
I. Ensure Effective Immunization Currently, four types of live coccidiosis vaccines are used for planned immunization on chicken farms: precocious, intermediate, and late-maturing vaccines, and a combined vaccine containing precocious, intermediate, and late-maturing strains. …
Fowlpox is a highly contagious viral disease. It tends to spread in autumn and winter, especially in damp environments where mosquitoes are abundant, as they can accelerate transmission. Therefore, preventive measures should be taken in advance during the rainy autumn season. Fo…
At a poultry farm, if you ask the staff about chicken droppings, they will know what normal droppings look like. So, when you see abnormal droppings, such as green, yellow, soy-sauce-colored, or white droppings, this suggests that the chickens may already have a disease. In this situation, if y…
Thorough individual observation throughout the entire process can greatly improve the accuracy of disease diagnosis. After basic checks of body temperature and the respiratory tract, the chicken’s external appearance, body surface, and limb movement and posture provide important clues for ident…
In autumn, the day–night temperature difference widens and cold stress occurs frequently. The conflict between maintaining warmth and ensuring ventilation in chicken houses becomes pronounced, and accumulated ammonia and dust can easily damage the respiratory mucosal barrier. At the same time, …
家禽疾病流行态势，有几个主要疫病在持续高态势流行，有新发的疫病也开始流行；那么，如何有效防控各种疫病威胁？如何规划预防机制？需要规模化家禽养殖深度思考。 这次，我们对家禽种源性疾病做一个简单沟通，看看当下我们需要顾及和在意，甚至要重视哪几个种源性疾病或垂直传播疾病的危害。对于父母代、商…
Looking back at the prevalence of poultry diseases in China over the past few years, the disease with the highest profile has been “chicken Mycoplasma synoviae disease.” Its approximate history of prevalence in China is as follows: it occurred sporadically in broilers around 2011 and spread rap…
In the egg-laying industry, once hens enter the laying period, they have to cope with all kinds of external stress every day and put all the feed they consume each day to work producing eggs. This long-term, full-capacity production workload is bound to weaken the hens’ physical condition, and …
When autumn and winter arrive, especially in 11-12 when the weather swings between cold and warm, Newcastle disease can easily “come knocking.” Once a flock is infected, symptoms may range from lethargy, loss of appetite and difficulty breathing to, in severe cases, twisted necks and circling. …
Among chicken diseases, the one people are most concerned about is probably avian influenza. It is very common on our farms, and we cannot avoid it. When discussing avian influenza, we must first understand that avian influenza in broilers is fundamentally different from avian influenza in laye…
Vaccination is an important barrier to ensuring the health of a flock and one of the most important aspects of production management. The following principles must be observed: “Focus on effectiveness, not results; focus on quality, not process; be scientific and reasonable, and do not follow b…
In the previous post, we discussed booster vaccination: giving an extra shot does not automatically mean more reliable protection; every booster should have a clear protective goal. Once it is determined that “this shot is needed,” another question immediately arises: …
I. Causes of chicken coccidiosis (I) Management factors. These mainly include the following: lighting, temperature, humidity, litter, stocking density, environment, and rearing methods. 1. Temperature and humidity. When the temperature in chicken houses falls below 20℃ in wint…
I. Clinical Symptoms and Production Indicators In pullets beginning to lay, the laying rate rises slowly or stops increasing, often hovering around 80%, while feed intake remains low. As soon as the flock reaches peak production, the laying rate begins to decline slowly; egg weight is …
Although parasitic eye diseases in poultry are less common than bacterial or viral eye diseases, they are caused by a wide variety of pathogens. The resulting lesions range from mild conjunctivitis to blindness and even death, and their harm should not be overlooked. Reported causative agents o…
Summer has arrived, and the chicken lice that give poultry farmers the most headaches have appeared again. Chicken lice belong to the family Menoponidae and are common external parasites of poultry, mainly living on chickens’ feathers and skin. They are small: males are 1.7–1.9 millimeters long…
Enteritis and intestinal toxemia syndrome involve symptoms such as inflammation, thickening, sloughing, bleeding, and necrosis of the intestinal mucosa caused by various factors. The disease has a high incidence rate, and any flock of chickens can become infected. Causes of ente…
Colibacillosis in chickens is an infectious disease caused by pathogenic E. coli. This bacterium is widespread in nature and is usually one of the normal bacterial populations in the chicken gut. However, under certain conditions, E. coli can become pathogenic and cause disease in chickens. Col…
我国是全世界名列前茅的养鸡大国，蛋鸡饲养量稳居世界第一，肉鸡饲养量也仅次于美国，尤其是山东地区的家禽饲养规模和水平，在国内都是极为领先的。但在长期的饲养过程中，一些疾病的发生也严重制约了养鸡业的健康发展，其中鸡传染性鼻炎即属于一种常见禽病，本病是由副鸡嗜血杆菌引起的鸡呼吸道细菌性传染病，主要表…
Infectious bronchitis (IB) is an immunologically controlled disease affected by the environment. In autumn, large temperature fluctuations and sudden changes in temperature can expose chicks to cold stress, making them susceptible to infection. This can cause economic losses for poultry farmers…
In early winter, temperatures drop sharply and the day-night temperature difference widens, bringing laying hens into a high-risk period for respiratory diseases. These diseases threaten the health and production performance of laying hens and constrain the profitability of early-winter poultry…
Introduction:Avian colibacillosis is a bacterial infectious disease that seriously harms the poultry industry and causes huge economic losses. With the restricted use and ban of antibiotics in poultry farming, the incidence of this disease has increased, threatening poultry health. Therefore, t…
当下，无论是蛋鸡还是肉鸡，肌腺胃炎可谓一种常见疾病了。不同的日龄阶段均有发生，对鸡群的生长发育及生产性能造成了不小的影响。尤其是青年鸡阶段发生肌腺胃炎后，后期会造成体重不容易达标，体弱多病，治疗不及时对蛋鸡的生产性能影响特别大。 案例分享 重庆荣昌蛋鸡养殖场，存栏4万只，50…
