Disinfection methods of farming in rural areas

Nowadays, in the rural areas of our country, the old diseases can not be eliminated, the new diseases continue to be prevalent, the proportion of mixed infection in epidemic diseases increases, and the proportion of bacterial diseases increases. On the one hand, some poultry farms use to increase the type of epidemic (bacterial) vaccine, immune quantity and times, on the other hand, they try to control the secondary or concurrent infection of bacteria by adding antimicrobial agents to chickens, resulting in an increase in drug resistance of strains in chicken flocks. As a result, it is difficult to select sensitive and effective drugs after the disease. It can be said that disinfection is a weak link in the prevention and control of poultry diseases in rural areas of our country. Scientific, economical and effective disinfection is the main reliable method to control pathogens entering poultry farms and to eliminate pathogens existing in poultry farms.

1. Disinfection of poultry house

The whole-in-all-out breeding mode is emphasized in the practice of modern poultry breeding.

1.1 first carry out thorough cleaning and cleaning. Cleaning and flushing should be carried out carefully and carefully, according to a certain order, generally, first sweeping and then washing, first ceiling, then walls, and then the ground; from the far end of the poultry house to the door, indoor and then outdoor, gradually, leaving no dead corner. After careful and thorough cleaning and cleaning, not only 80% of the pathogens can be removed, but also the amount of organic matter such as feces can be greatly reduced, which is conducive to the role of chemical disinfectants. 1.2 Chemical disinfection shall be carried out after thorough cleaning. Disinfection of empty houses generally requires the use of 3 types of disinfectants with different effects for 3 times. The effect of only one disinfection or only one disinfectant is incomplete, because different pathogens have different sensitivities to different disinfectants.

The first disinfection can be done with an alkaline disinfectant, such as 1% muri 4% caustic soda or 10% lime milk, to paint the floor and walls. Appropriate concentration of caustic soda solution can also be used for spray disinfection. The second disinfection can be carried out by spray disinfection with phenols or oxidants (peracetic acid). The third time was fumigated with formaldehyde. Can use heating method or oxidation method fumigation, when using oxidation method, first calculate the disinfection volume, per cubic meter with 42 ml formalin, 21 grams of potassium permanganate, oxidation disinfection to close doors and windows, heating to 20 ℃, relative humidity more than 70%, acting for 7 hours. 2. Disinfect chickens with them

The disinfection with chicken spray is thorough and comprehensive, which can not only directly kill the pathogenic microorganisms hidden in the environment of the chicken house, including the air, but also directly kill the pathogens of superficial retention in the body surface and respiratory tract of chickens. It has a good preventive effect on Marek's disease, infectious bursal disease and Newcastle disease, as well as bacterial diseases such as staphylococcosis, colibacillosis, salmonellosis and mycoplasma disease. in particular, it is more effective in preventing respiratory diseases such as infectious rhinitis and mycoplasma disease. In addition, it can also settle dust, prevent heat and cool down, provide humidity, purify the air, improve the environment of the chicken house, and is also conducive to the health of the breeders.

2.1 methods for disinfection of chickens: the age of the first disinfection of chickens is not less than 7 days, and the time of re-disinfection can be determined according to the pollution in the poultry house, usually once a week during the rearing period (before 42 days old), once a week in the breeding period (before 42 days old), once every 10 days in the breeding period, once in 10 days for adults, and once a day when an epidemic occurs. Poultry should also be disinfected once after the removal of feces. The amount of spray is calculated at about 15 milliliters per cubic meter and the doors and windows are closed.

2.2 concentration of commonly used disinfectants for carrying birds: Xinjie, 0.1%; peracetic acid, 0.2% for rearing period, 0.3% for breeding and adult poultry; sodium hypochlorite, 0.2% mai 0.3%; compound phenol (bacterial poison enemy), 1VR 300 for brooding period, and 250 concentration for breeding and adult poultry. 3. Drinking water disinfection

Drinking water disinfection is to kill the pathogenic microorganisms in chicken drinking water in vitro in order to prevent the spread of infectious diseases when chickens drink water. But when chickens get sick, other drugs must be given to be effective. Accurately grasp the dose of disinfectant and stop drinking water disinfection two days before and after vaccination of attenuated live vaccine to poultry. The method of disinfecting drinking water is simple. It is prepared into a diluent in another container in advance, and then placed in a drinking fountain or trough for chickens to drink. The most important thing is to choose disinfectants that are effective, safe, non-toxic to chickens, no side effects and no residues in chicken products. Commonly used disinfectants: bleach powder, 0.3 ml 1.5 g per 1000 ml of drinking water, or 6 ml 10 g powder per cubic meter of water; peracetic acid (20%) plus 1 ml per liter of water; potassium permanganate (0.1%), paroxysm (50%) 0.5 ml / 10 kg water prevention dose 0.5 ml, 1-2 ml at the time of onset. 4. Disinfection of utensils and supplies in poultry farms

There are many utensils and supplies in poultry farms, and the materials and uses of these utensils are different, so the methods used are different. Specific applications such as work clothes irradiated with ultraviolet lights, tools fumigated with formalin, vehicle spraying, egg receptacle soaking, medical equipment high-pressure disinfection and so on.

As far as rural poultry farms are concerned, it is very important to do a good job of disinfection, cut off the epidemic route of epidemic disease and create a good sanitary environment for poultry.