The pathogenic bacteria of E. coli in dairy cows are E. coli. The infection group is concentrated in calves aged 7 to 10 days. The incidence of E. coli in calves aged over 10 days is lower. The problem of E. coli infection in dairy cows is quite common. The main manifestation of this infection is acute and infectious symptoms. When the cows are infected by E. coli, their excrement will be gray-white, the whole body will collapse and accompanied by serious water shortage. If these dairy cows are not managed, their probability of being infected by E. coli will be greatly increased. Furthermore, if the diagnosis and treatment are not timely, it will seriously affect the development and interests of the entire industry. Disease characteristics and prevention and control measures of cows infected with E. coli.
Escherichia coli is the source of pathogenic bacteria in dairy cows. From infected objects, the main target of E. coli infection is not mature dairy cows, but calves just born 7 to 10 days. Therefore, calves born more than 10 days are less likely to be infected by E. coli. The duration of E. coli infection varies. According to the length of the infection cycle, E. coli can be divided into three types: intestinal type, septic type, and enterotoxin blood type.
Many reasons are leading to the infection of cows by E. coli. The management of cows is negligent, and the management does not conform to the norms, which increases the probability of the E. coli outbreak to a certain extent. Besides, the E. coli epidemic is mainly concentrated in small cows. If an outbreak occurs, numerous small cows will be infected, which will eventually cause more serious losses. If no measures are taken, the probability of E. coli infection will be greatly increased, and if the diagnosis and treatment are not timely, it will seriously affect the development and interests of the industry as a whole.
In the process of dairy cattle breeding, the problem of E. coli infecting dairy cows is relatively common. The main manifestation of this problem is acute and infectious symptoms. When dairy cows are infected by E. coli, their excrement will appear gray-white, the whole body will collapse and accompanied by serious water shortage. Because of the characteristics and susceptible subjects of cow colibacillosis, in the process of actual diagnosis and treatment, it is necessary for cow breeders to make initial diagnosis and Discussion on the problem of a cow infected by colibacillosis. Because of the obvious problems of cows infected by E. coli, suspicious cows can be detected according to the obvious characteristics of the disease, to achieve timely isolation and treatment.
Escherichia coli is ubiquitous and is a very wide range of organisms. Therefore, E. coli can invade many kinds of animals. If cows and calves are not managed properly, they will be infected by E. coli, which will further induce gastrointestinal diseases and eventually become infected with E. coli. The disease of E. coli infection does not survive well in the outside world. It is also transmitted to young cows by sick cows through breast milk. Data show that the route of E. coli transmission is mainly concentrated in the digestive tract system, but also through the uterus, umbilical cord transmission. Infection can occur at any time of the year. The peak of infection occurs in spring. The air circulation is not too fast in this season, which will lead to the rapid growth of E. coli and come with all kinds of spring diseases, eventually infect young dairy cows.
According to the experimental investigation, it was found that cows infected by Escherichia coli would have obvious symptoms several hours later. Dairy cows will get sick after being infected by E. coli. According to the duration of illness, they can be roughly divided into three types: intestinal type, septicemia type, and enterotoxin blood type. Intestinal type dairy cows: First, in the early stage of infection, the temperature of the calf will rise to about 40 degrees Celsius, a few hours later will dysentery, and then return to normal. The feces will be grey and white, smelling acidic. At the end of the illness, fecal incontinence will occur, and even arthritis will occur. Septicemic cows: The most obvious symptoms are fever, depression, and diarrhea, which can lead to acute death in a few hours. Dairy cows with enterotoxin blood type: sudden death occurs. The mood first becomes restless and anxious, then becomes excited, then becomes depressed and depressed, then coma, and eventually will lead to death.
It is necessary to strengthen the management of young dairy cows, to ensure the nutrients needed for the normal growth of dairy cows, and to enhance their resistance. Nutrients should meet the scientific allocation ratio and provide the nutrients needed by dairy cows. To avoid strong stimulation to the stomach of dairy cows, it is necessary to ensure the inherent feeding pattern during the feeding process and not to suddenly change the feeding pattern. On the other hand, we should also pay attention to the hygienic maintenance of the living environment of dairy cows. Only a good hygienic environment can reduce the breeding of pathogens and ensure the normal growth of dairy cows. After calves are born, they should ensure the nutrients they need for their normal life activities, and breast-feeding work should be carried out in time to avoid over-satiety or hunger.
Residual feces should be treated without pollution. Besides, as far as possible to ensure the high level of antibodies in breast milk, so that the calf will get a high level of antibodies after drinking, thereby enhancing the resistance of the calf itself.
If the calf has been infected by E. coli, the treatment is difficult, and the recovery process is very slow. Isolation should be carried out in time to reduce the impact on other dairy cows. Farmers should do a good job of prevention of dairy cows, only in this way can the healthy growth of dairy cows.
As a common pathogen of dairy cows, E. coli should be actively prevented to ensure the healthy growth of young cows. If we do not pay attention to feeding and management, it will lead to cattle infection, which will eventually lead to greater losses. Therefore, we should pay more attention to the sick cows, and give them adequate isolation treatment to ensure the sustainable development of the dairy industry.
Analysis of Colibacillosis in Dairy Cows
Cow E. coli is the source of pathogenic bacteria in cows. The main target of E. coli infection is not mature cows, but calves just born one week to ten days. Therefore, calves born more than ten days are less likely to be infected by E. coli. The duration of E. coli infection varies. According to the length of the infection cycle, E. coli can be divided into three types: intestinal type, septic type, and enterotoxin blood type. Many reasons are leading to the infection of cows by E. coli. The management of cows is negligent, and the management does not conform to the norms, which increases the probability of the E. coli outbreak to a certain extent. Besides, the E. coli epidemic is mainly concentrated in small cows. If it breaks out, it will cause a large group of small cows infected by several small cows, which will eventually cause greater losses. Starting from the main points of diagnosis of cow E. coli, this paper puts forward some preventive measures for cow E. coli infection. Finally, it summarizes the problems of cow E. coli infection, which provides a basis for scientific diagnosis and treatment of cow E. coli in the future.
Diagnosis of Escherichia coli in dairy cows
1. Discuss the initial diagnosis of a cow infected by E.coli.
Because the problems of cows infected by E. coli are obvious, we can detect suspicious cows infected by E. coli according to the characteristics of the disease, to achieve timely isolation and treatment. Escherichia coli is a kind of organism that can cause cow infection. Escherichia coli can be found everywhere in nature and is a very wide range of organisms. Therefore, E. coli can invade a variety of animals, of course, people can not be exceptional, some people will also be infected by E. coli. Compared with dairy cows, newborn calves are more susceptible to infection, especially during the period from one week to ten days of their birth, during which they are susceptible to E. coli infection. If cows and calves are not managed properly, they will be infected by E. coli, which will further induce gastrointestinal diseases and eventually become infected with E. coli. The disease of E. coli infection does not survive well in the outside world. It is also transmitted to young cows by sick cows through breast milk. Data show that the route of E. coli transmission is mainly concentrated in the digestive tract system, but also through the uterus, umbilical cord transmission. Infection can occur at any time of the year, and the peak of infection is mainly in spring. The air circulation is not too fast in this season, which will lead to the rapid growth of E. coli and eventually infect young dairy cows. According to the experimental investigation, it is found that the cows infected by E. coli will have obvious symptoms after a few hours. Unlike AIDS, it often hides in the human body for several years before it occurs. Therefore, the latency period of the cows infected by E. coli is relatively short.
2. Types of E.coli in calves
Dairy cows will get sick after being infected by E. coli. According to the duration of illness, they can be roughly divided into three types: intestinal type, septicemia type, and enterotoxin blood type. Bowel-type dairy cows have the following characteristics: first, in the early stage of infection, the temperature of the calf will become very high, about 40 degrees Celsius, after a few hours will dysentery, and then will become normal. The feces will be grey and white, smelling acidic. At the end of the illness, fecal incontinence will occur, and even arthritis will occur. Cows with septicemia have the following characteristics: the most obvious symptoms are fever, poor mental condition, depression, and diarrhea. The young cows with this condition will die after several hours. The dairy cows with enterotoxin blood type have the following characteristics: sudden death occurs, the mood is restless and anxious first, then becomes excited, then becomes depressed and depressed, then coma, and finally will lead to death.
Prevention and Control Measures of Cow Escherichia coli Epidemic
1. Preventive measures for dairy cows before being infected by E.coli
It is necessary to strengthen the management of young dairy cows, to ensure the nutrients needed for the normal growth of dairy cows, and to enhance their own resistance. Nutrients should be allocated in a scientific proportion to provide the nutrients needed by dairy cows. In order to avoid strong stimulation to the stomach of dairy cows, it is necessary to ensure the inherent feeding pattern in the long-term feeding process and not suddenly change the feeding pattern. On the other hand, we should also pay attention to the hygienic maintenance of the living environment of dairy cows. Only a good hygienic environment can reduce the breeding of those pathogens and ensure the normal growth of dairy cows. After the calf is born, it is necessary to ensure the nutrients needed for his normal life activities, and carry out breastfeeding in time to avoid over-satiety or hunger.
2. Dairy cows should live in a normal living environment.
For example, if there is too much residual feces, it is not good. Those feces should be treated without pollution. In addition, as far as possible to ensure the high level of antibodies in breast milk, so that the calf will have a higher level of antibodies after drinking, thereby enhancing the resistance of the calf itself.
3. Prevention and control measures for dairy cows infected by E.coli
After the calf has been infected by E. coli, such treatment is difficult and the recovery process is very slow. Isolation should be carried out in time to reduce the impact on other dairy cows. Therefore, we should do a good job in the prevention of dairy cows, only in this way can the healthy growth of dairy cows.
Conclusion
Escherichia coli as a common pathogen of dairy cows, of course, it should be well prevented to ensure the healthy growth of small cows. If these cows are not regularly managed, they will be infected by several cows into a large group of cows, which will eventually cause greater losses. Therefore, we should pay more attention to these sick young cows, and give them adequate isolation treatment to ensure the sustainable development of the dairy industry.