Relieve the stress of cattle and sheep

The summer and autumn seasons are hot and humid, and friends of farmers are facing a major test of heat stress, especially those in the south. Stress refers to the non-specific systemic response of the body when it is stimulated by various internal and external environmental factors. It can also be understood as general adaptation syndrome (GAS), which is a defense mechanism of the body. Appropriate stressors stimulate the body to make the body quickly adapt to the changing environment. Common stress categories are: heat stress, transportation stress and disease stress. Today we mainly introduce the heat stress of dairy cows and the transportation stress of beef cattle and sheep.
Heat stress is more common in dairy cows, especially in the south, where the temperature is high, the humidity is high, and the heat stress is relatively high. The negative effects of heat stress are mainly manifested in the following aspects:

In order to better explain the impact of heat stress on the performance of dairy cows, scholars studied the changes in dry matter intake requirements and actual feed intake of dairy cows weighing 600 kg, yielding 27 kg and 3.7% milk fat at different temperatures. The results are as follows :

It can be seen from the table that when the temperature exceeds 20°C, as the temperature increases, the energy required for body maintenance continues to increase, especially at 40°C, the maintenance requirement increases by more than 30%. The demand for dry matter of dairy cows continues to increase, but the intake of dry matter continues to decline under the influence of high temperature, which in turn leads to a sharp decline in milk production and severely reduces the efficiency of breeding. So, how do we deal with heat stress?
Physically cool down, create a cool environment, provide clean cold water, use fans; nutrition control, add high-quality roughage, add fat, add vitamins and minerals.
The benefits of using Jitai to relieve heat stress are as follows: adding immune-type bacteria can stimulate the body's mucosal immunity and improve immunity. Replenish the body's electrolytes, reduce the catabolism of stress on the body's animal protein and carbohydrates, and reduce stress damage. Jitai can effectively reduce a series of reactions such as decreased milk production and low feed conversion rate under heat stress.

After introducing heat stress, let's talk about transportation stress. Transportation stress syndrome refers to a syndrome in which the body's resistance is decreased due to long-distance transportation of cattle and sheep, which causes pathological reactions in the respiratory tract, digestive tract and systemic. Symptoms include high fever, salivation, dyspnea, cough, decreased appetite, diarrhea, diarrhea, and dry stool.

Beef cattle transportation

Mutton sheep transportation