Introduction: Today I am here to give you the causes and treatment options of coccidiosis. Pay attention to the "Encyclopedia of Poultry Diseases" free consultation, private message to learn more about breeding technology, disease diagnosis and prevention, and share every day!
Coccidiosis is a common and serious parasitic disease in chickens, and the economic losses it causes are staggering. Chicks have higher incidence and fatality rates. The growth of the chicks that have recovered from the disease is hindered and the weight gain is slow; the adult chickens are mostly insect carriers, but the weight gain and egg laying ability are reduced.
I. Epidemiology
Second, all breeds of chickens have susceptibility, 15 to 50 days old chicken morbidity and mortality rate are higher, adult chickens have a certain resistance to coccidiosis.
Sick chickens are the main source of infection, and all feed, drinking water, soil and utensils contaminated by insect-carrying chickens have egg sacs. Chickens are infected with coccidiosis mainly by eating infectious oocysts. People, their clothes, utensils, etc., as well as certain insects, can become mechanical propagators. Chicken coops are most susceptible to illness when they are damp, crowded and in poor sanitary conditions. Coccidiosis is prone to outbreaks during the wet and rainy season, when temperatures are high. Coccidiosis eggs are more resistant, and the general disinfectant in the external environment is not easy to destroy. It can maintain vitality in the soil for 4 to 9 months, and in shady places for up to 15 to 18 months. Oocysts are less resistant to high temperatures and dryness.
<h1>Clinical symptoms</h1>
Sick chickens are depressed, fluffy feathers, curled heads, loss of appetite, full of fluid in the sac, anemia of the crown and visible mucosa,
Pale, gradually emaciated, sick chickens often discharge red radish colored feces, if infected with tender Amy's earworm, the stool at the beginning is coffee-colored, and then become complete blood feces, if not taken in time, the fatality rate can reach more than 50%. If multiple coccidiosis are mixed with infection, the stool carries blood and contains a large amount of shedding intestinal mucosa.
<h1>Pathological changes</h1>
Sick chickens are emaciated, the crown and mucous membranes are pale, visceral changes mainly occur in the intestinal canal, and the lesion site and degree are related to the species of coccidiosis. If multiple coccidiosis are mixed, the intestinal tract is enlarged, there are a large number of bleeding spots on the intestinal mucosa, and there are a large number of purple-black intestinal epithelial cells with exfoliated intestinal epithelial cells in the intestinal tube.
<h1 class="ql-align-center" > prevention and medication</h1>
(1) Strengthen feeding management: Adult chickens are fed separately from chicks to avoid the spread of pathogens in adult chickens with insects and lead to the outbreak of coccidiosis in chicks. Keep the coop dry, ventilated and hygienic, remove feces regularly, and stack fermentation to kill the egg sacs. Keep feed and drinking water clean, and disinfect cages, sinks, and sinks regularly. The addition of 0.25 to 0.5 mg of selenium per kilogram of diet can enhance the resistance of chickens to coccidiosis. Supplementing with adequate vitamin K and giving 3 to 7 times the recommended amount of vitamin A can accelerate recovery from coccidiosis in chickens.
(2) Immunoprophylaxis: The application of weak insect strains passed down from chicken embryos or weak insect strains selected by early maturation to immunize chickens can make chickens have a better preventive effect on coccidiosis.
(3) Drug control: So far, the prevention and control of chicken coccidiosis at home and abroad mainly relies on drugs. (Small intestinal coccidiosis: small leather ball or white ball diarrhea Kang, a bag of 300 pounds of water, concentrated for two hours of drinking water, continuous use for 3 to 4 days.) ）