Detailed Explanation of Key Technical Points for Coccidiosis Vaccine Administration via Feed Mixing in Chickens
Wherever there are chickens, coccidia oocysts are present, and intensive poultry farms are common sites of coccidiosis outbreaks. The advent of coccidiosis vaccines has solved the challenge of preventing and controlling coccidiosis. If vaccine quality is assured, immunization methods are correct, and feeding management is proper, then using the feed-mixing immunization method to control coccidiosis is extremely ideal.
????1. Key Points to Master Before Immunization
1.1 Prepare water, feed and vaccine properly. At 3 days of age, prepare 8 grams of feed per chick, which will take about 5-6 hours to consume. Prepare cool boiled water in advance at a ratio of 1 jin of feed : 75 ml of water. For imported vaccines, prepare 0.7-0.8 doses per chicken.
1.2 Mixing the vaccine: Pour the cool boiled water into a clean spray bottle, add the vaccine into the spray bottle and shake well.
1.3 Spraying the feed: Spread the feed evenly on a clean floor, spray the coccidiosis vaccine evenly onto the feed, turning it back and forth; spray multiple times and mix thoroughly to ensure the feed is uniformly moist with no clumps. Pay special attention during the spraying process to shake the spray bottle while spraying to keep the coccidia oocysts suspended in the water, preventing them from settling to the bottom, and ensuring immunization effectiveness.
1.4 Feeding space: Ensure adequate feeding space so that consumption takes 5-6 hours, allowing all chickens to evenly consume the feed.
????2. Management After Immunization
Coccidiosis immunization requires special management, which is also a key factor in the success or failure of coccidiosis immunization.
2.1 Within 3 weeks after coccidiosis immunization, no anti-coccidial drugs may be used in the feed;
2.2 House humidity: The reproduction cycle of coccidia is 7 days. Starting from day 6 after coccidiosis immunization, pay attention to the humidity of the chicken house and litter until day 21. The humidity of the chicken house needs to be maintained at around 70%.
2.3 Litter management: Good litter quality is key to coccidiosis immunization. Litter that is too dry or too wet will affect the effectiveness of coccidiosis immunization; the litter thickness in the brooding house must be properly controlled, with around 6 cm being appropriate, and exceeding 8 cm will affect the effectiveness of coccidiosis immunization.
2.4 Expanding the rearing area and moving flocks: When expanding the rearing area or moving flocks, a portion of old litter must be mixed into the new enclosure, and the litter humidity must be ensured, so that the reproduction of coccidia oocysts will not be interrupted.
2.5 Handling of immune reactions: Under normal circumstances, coccidiosis vaccine reactions generally appear 10-14 days after immunization. Mild cases do not require medication; if the flock develops bloody droppings or even death, immediately administer a therapeutic dose of coccidiostat.
????3. Feeding Management
Coccidiosis is an environmental disease. Under normal circumstances, if feeding management is adequate, the flock can be controlled after vaccination.