Eggs are the main source of income for breeding laying hens. Therefore, improving the egg quality and egg production of laying hens is the main issue for laying hens. What problems can not be ignored in laying hens? The following small series are Everybody briefly introduces several kinds of specific conditions as follows:
The three major problems that can be neglected in laying hens
Pick up eggs
When picking eggs, farmers should pay attention to cleaning their hands or wearing disposable sanitary gloves, and be careful not to touch the anus of chickens in order to prevent bacteria on the hands from entering the chickens, affecting their normal growth and egg production.
Three problems that are easy to ignore in laying hens
Banned raw food
Use corn (When you feed chickens, pay attention to smashing the raw grains first, and then formulate them with other ingredients, such as fish meal, bone meal, bran, etc., and then feed the layer hens. If you use raw grains directly, you will Reduce feed utilization.
Three problems that are easily overlooked in laying hens
Change feed
When changing feed, pay attention to gradual
Influenza Vaccine, Live, Nasal, Freeze-dried Exclusively authorized by the WHO in China
Influenza Vaccine, Live, Nasal, Freeze-dried is a cooperative project with the WHO, which has been included in Global Action Plan for Influenza Vaccines (GAP)[1]. Hundreds of millions of doses have been used in the world, and Changchun BCHT Biotechnology Co. has the exclusive right of production and
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Intranasal spray administration, no injection and no pain
The vaccine is inoculated by nasal spray, equipped with nasal spray device, and only needs to spray once a year in two nostrils to prevent influenza.
Mucosal immunity + Cellular immunity + Humoral immunity
After influenza virus attacks human body, it widely exists in nasal cavity, respiratory tract and other mucosal parts, as well as in body fluids and cells.
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·Intranasal administration can produce mucosal immunity (IgA antibody), which forms the first immune defense line in the nasal cavity.
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3+N More extensive protection
The production strains are recommended and supplied by the WHO every year.
The vaccine can not only effectively resist the vaccine strain, but also produce cross immunity to other subtypes of influenza virus.
Produced with SPF embryonated eggs
SPF
The chick embryos for vaccine production comes from SPF (specific pathogen free) chicken flocks, so the risk of exogenous pathogenic microorganism
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