It is knowledgeable to inject oil seedlings into laying chickens

In the current production of chickens, vaccination of oil seedlings is one of the effective ways to prevent and control infectious diseases. With the increasingly serious pollution of the breeding environment, injection of oil seedlings during the laying period has become an important measure to effectively prevent diseases. In the actual production process, some farmers did not follow the correct method of oil seedlings, resulting in a more severe stress response after injection. How to inject oil seedlings correctly during the production period must arouse great attention of the farmers.

The site of the vaccine

Should be selected for injection in the subcutaneous or superficial pectoral muscles of the neck. The injection of leg muscles, especially bacterial seedlings, is not recommended. Many chicken farmers directly hold the head of the chicken when they are subcutaneously injected into the neck. The syringe is injected at a 90-degree angle with the neck, causing the oil seedlings to be injected into the neck muscles. Due to less neck muscles, blood vessels and nerves are very abundant, and the neck of the chicken is likely to swell after injection. The chicken neck appears to be neck-contracted, lack of energy, decline in feed intake, weight loss, and discharge of yellow and green excrement. If the injection site is close to the head, the swollen swollen chicken face can easily appear about 7 days after the vaccine injection.

Before oil seedling immunization should be shaken, pay attention to pre-temperature

Before inject oil seedlings in autumn and winter, be sure to preheat. Many farmers do not pre-warm the seedlings before injection, and then directly inject the vaccine into the refrigerator and inject them. As a result, the injected oil seedlings are malabsorbed, and larvae of varying sizes are formed at the injection site, affecting the immune response of the vaccine. Pre-heating method: 4 hours to 5 hours before seedling injection, remove the oil seedlings and put them in warm water (37°C~40°C), so that the temperature of the oil seedlings is as close to the body temperature of the chicken as possible before injection.

When the seedlings are raised, the chickens should be handled with care and gentleness.

The drop in the egg production rate after the majority of chickens are injected is related to the excessive brutality of catching chickens.

During the seedling injection, drugs can be added to relieve stress

Two and a half milligrams of oxytetracycline and aminovitamin in drinking water can be added to the feed 2 days to 3 days before and after the seedling injection to relieve the stress of the seedlings. Adding an immune booster in drinking water to improve vaccine protection. The size of the post-emergence stress response in chickens is closely related to the weight of the flock. The chicken population is large and has good constitution and the stress response after injection is small. On the contrary, the chicken population is small and has poor health, and the stress response after injection is large.

Egg-laying chicken oil injection should be selected at the right time

As the eggs of normal high-yield chickens are concentrated in the morning, if the injection of oil seedlings in the morning disturbs the regular laying patterns of chickens, it is easy to cause symptoms such as yolk peritonitis. In the afternoon, the sheds are dark and it is not easy to cause chicken flocking. Therefore, it is best to choose injections in the afternoon, especially after four o'clock.

When an infectious disease occurs in a neighboring chicken group, the chicken should be vaccinated urgently

Follow the order of "Healthy Chickens → Assumed Healthy Chickens → Chickens" first. When the disease exists in the flock, oil seedlings should be avoided. If necessary, vaccination should be conducted under the guidance of a veterinarian.

As long as the above points are followed, injection of oil seedlings during the laying period has no significant effect on the egg production rate of the flock. Even if the egg production rate drops after injection, the rate will not be very large, generally within 5%, and the egg production rate will rise rapidly after 3 days to 5 days.

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