The influence of high temperature in summer on pigs, sheep and cattle and its countermeasures!

The high temperature in summer is a great test for pigs, sheep and cattle, because the high temperature will bring a lot of adverse effects to them. do farmers know the effects of these high temperatures on livestock and how to deal with them? Let's take a look at it together.

I. the influence of pig herd and its countermeasures

1. Impact:

The main results are as follows: (1) High temperature and humidity in summer are suitable for the growth and reproduction of bacteria, which makes streptococcosis, porcine erysipelas and diarrhea easy.

(2) the climate of high heat and humidity is suitable for the reproduction of mycotoxins, so the control of mycotoxins should be taken as the focus of raising pigs in summer.

(3) mosquitoes and flies are active frequently in summer, which provides a vector for the occurrence of hematozoonosis, so summer is a high incidence season for diseases such as eperythrozoonosis and toxoplasmosis.

(4) Summer is also a season of changeable climate. As the saying goes, "June day, children's face", the changeable weather causes a lot of stress to pigs, so we should pay special attention to diseases seriously affected by stress. In addition, conditional pathogens such as Escherichia coli and Haemophilus parasuis also cause more diseases in summer.

(5) the temperature in summer is hot, the general external temperature can reach more than 3040 ℃, and the suitable temperature for sows is about 20 ℃. High heat will affect sow feed intake and cause malnutrition, and some poorly managed pig farms can not remove the remaining feed in the trough in time, and will also cause sow mycotoxin infection.

two。 Coping methods:

(1) create good environmental conditions, do a good job of heat prevention and cooling of pig houses: heat insulation, ventilation, spraying (sprinkling) water, wet curtain fan to cool down.

(2) adjust feed nutrition and strengthen feed management.

(3) add anti-heat stress drugs.

Second, the influence of sheep and its countermeasures

1. Impact:

The main results are as follows: (1) the temperature is too high, which makes it difficult for sheep to dissipate heat and affect feed intake and feed reward.

(2) it is easy to make sheep lose weight.

two。 Coping methods:

(1) to create suitable environmental conditions.

(2) provide adequate, cool and hygienic drinking water.

Water plays an important role in the regulation of body temperature, so under the condition of heat stress, clean, adequate and hygienic cold water must be provided, of which deep well water is the best, and pay attention to frequent replacement.

(3) arrange the feeding time reasonably.

Due to the relatively low temperature in the morning and evening, the appetite of sheep is relatively strong, and feeding can increase feed intake at this time.

(4) the feeding density should not be too high.

The increase of house temperature caused by high feeding density should be avoided in summer. Generally speaking, for sheep with less than 60 kilograms, each covers an area of not less than 0.7 square meters; for sheep with more than 60 kilograms, each sheep is not less than 1 square meter.

(5) increase the energy level in the diet.

In order to alleviate the decline of production performance of sheep affected by high temperature environment, diets with higher nutrition should be given in high temperature season to make up for the problem of insufficient energy intake caused by high temperature.

(6) supplementation of restricted amino acids in the diet

During heat stress, it is necessary to adjust the content of dietary crude protein, and feeding synthetic lysine instead of natural protein is beneficial to sheep. Supplementation of 0.3% lysine in the diet can reduce heat consumption in the diet and significantly improve feed conversion rate and production performance of sheep.

III. The influence of cattle and its countermeasures

1. Impact:

(1) it is easy to cause infectious diseases.

(2) the estrous cycle of cattle was prolonged and the estrous time was shortened.

(3) the decrease of milk yield and reproduction rate of dairy cows will not only decrease the resistance of dairy cows, but also increase the probability of disease.

two。 Coping methods:

(1) the trees are cool, ventilated and sprayed.

(2) adjust the diet and replenish electrolytes properly.

(3) feeding at high temperature and drinking water frequently.

(4) feed more fodder for cleaning and purging fire.

(5) avoid delivery of high-yielding cattle in summer as far as possible.

(6) often clean and wash the barn, remove feces, ventilate and ventilate, regularly wash the cowbed with clean water, rinse and brush the unclean parts of the cow body and hindquarters with clean water on time, so as to reduce heat stress.