When raising cattle, everyone hopes to choose a beef cattle breed with strong disease resistance, which will reduce a lot of unnecessary troubles.Cattle farmers often ask me how to raise beef cattle to be the most disease-resistant. Today, I 'd like to give you a detailed introduction on this issue.

Personally, I think the direct relationship between disease resistance and breed of beef cattle is not large, but there are some indirect relationships.

of cattledisease resistanceThere are mainly the following decisions:

1. The disease resistance of beef cattle has a great relationship with their physique. The disease resistance of cattle with strong physique is naturally strong. The quality of beef cattle physique has a greater relationship with the feeding method. Under the condition that the nutritional needs of beef cattle can be guaranteed, the greater the amount of exercise, the stronger the physique, the physique of grazing cattle is better than that of captive cattle, and the physique of free-range cattle is better than that of tied cattle.

Most fine-bred beef cattle are kept in captivity or even chained, and their physical fitness is naturally poor with less exercise. This gives people an illusion that the higher the degree of improvement, the less resistant cattle.

2. The incidence of cattle in the epidemic area is naturally high. For example, in some northern regions such as Jilin, Shandong and Shanxi, the incidence of bovine foot-and-mouth disease (No. 5 disease) and bovine infectious pleuropneumonia (bovine lung disease) is relatively high, and the incidence of beef cattle imported from these regions is naturally high. However, cattle farmers in the southern region brought in more improved beef cattle to the northern region. When casualties occurred after returning, they believed that improved beef cattle were not as resistant to diseases as native cattle. In fact, if the native cattle are placed in the epidemic area for a period of time, the incidence rate will also be relatively high.
3. The greater the stress response, the higher the incidence of cattle, and many cattle diseases are caused by stress. For example, infectious pleuropneumonia in cattle in Jilin is relatively serious and may not occur locally, but it is very likely to occur when cattle are bought from the place through stress such as transportation and epidemic prevention is not in place. The farther the transport distance, the greater the stress response, the higher the incidence of cattle.

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Speaking of stress, incidentally, I 'd like to introduce some measures to deal with stress:

In cattle production, live cattle are often transported in order to introduce, sell, slaughter, etc. In the process of transport cattle stress response, reduced resistance, poor appetite, weight loss, and even morbidity or death. How to reduce the stress response of cattle transport process, generally can use the following technical measures.1In the process of long-distance transportation, the cow's body stress reaction occurs, and the cow's demand for potassium ion is about increased.20%-30%. Therefore, in the process of transporting cattle should increase the content of potassium in the daily amount, generally can make the potassium content in the diet reach1.27%-1.41%. The common method is to supply bovine potassium chloride per kilogram of body weight per day.20-30g.

2, improve the protein concentration of the diet, the study found that in the process of transportation, improve the protein concentration in the diet of cattle, can improve the appetite of cattle, prevent the reduction of food intake of cattle, so as to ensure the nutritional needs of cattle in the process of transportation, can reduce the weight loss and morbidity of cattle. In the transportation process, it is generally necessary to increase the protein concentration of cattle diets.2-3percentage point. Its specific approach is to increase the fine material.10%-15%of soybean meal.

3. Vitamin supplementation in the dietCDuring the transport process, the cattle body reacts to stress and synthesizes vitamins.CThe ability to reduce, while the body's needs have increased, the need for vitamin supplementsCTo meet physiological needs. At the same time, vitamin supplementsCIt also has the effect of suppressing the increase of body temperature during the stress process, promoting appetite and improving disease resistance. The transportation process can generally be added to the diet of cattle.0.06%-0.1%of vitaminsC, or add in drinking water0.02%-0.05%of vitaminsC.

4. Adding antibiotics Some foreign studies have proved that adding antibiotics to cattle during transportation can reduce the stress response of cattle. The addition of oxytetracycline synergist to the diet a few days before shipment can reduce the morbidity of cattle respiratory system during transportation and significantly reduce the mortality of beef cattle during transportation. Usually before transportation.5-10Day feeding per cow per day5grams of oxytetracycline, slaughtered a few days before the cattle should not use this method.

The use of sedative drugs can reduce the sensitivity of cattle to external stimuli and reduce stress response. Intramuscular injection of chlorpromazine per kilogram of body weight to cattle prior to transport1.7mgAs a result, the average body temperature of the cattle during transportation rose less.1.7Celsius, less increased heart rate15.6Times/Points, breathing less increased13.6Times, live weight less loss of cattle4.4%; Beef cattle after slaughter, less carcass loss6.6kgAnd the quality of meat is improved, and the loss of meat in storage is reduced. The amount of chlorpromazine used in transport is2mg/kgWeight.

6. Select experienced personnel to carry out feeding and management on the way. Experienced breeders who understand the habits of cattle, mild language and moderate operation can reduce the stress response of cattle. It has been determined that gentle maneuverings or light collisions during transport can increase the average heart rate of the calf.7-10Times/points, while rough handling or violent collisions can increase the cow's heart rate.30-48Times/Points. Therefore, experienced breeders should be assigned to manage the cattle on the way.

7. Appropriate increase of loading density Generally, appropriate increase of density during loading can limit the range of movement of cattle, reduce vehicle bumps and oscillations, reduce cattle shaking and violent collision with each other, and reduce stress response. Therefore, when transporting cattle, the car should be filled. If there are fewer cattle, ropes can be tied to the car to limit the range of activities of the cattle.

8, choose the appropriate time and season transport environmental changes, differences in climatic conditions between the two places, often make cattle stress response enhanced, so long-distance transport cattle, especially when the introduction, should choose spring and autumn, sunny weather. When transporting cattle in winter and summer, we should do a good job of preventing cold and keeping warm. Cattle transportation from north to south should be carried out in autumn and winter, and cattle transportation from south to north should be carried out in spring and summer.

Of course, in addition to the above three important points, we should also pay attention to the daily feeding and management of cattle, whether colostrum was eaten at the beginning of birth, whether the whole feeding process was scientific, whether the matching of diet was reasonable, whether deworming and vaccination were carried out on time, etc. If we really want to say that the improvement of disease resistance of cattle is actually a special systematic process.