Summer farm cooling and improving feeding management

In this summer, the weather changes abnormally. Continuous “high temperature” weather occurs in both the north and the south. In this climate, special attention must be paid to the cooling and ventilation of pig houses, and the feeding methods and nutrition adjustment of pigs.

A kind of pig cooling sunstroke

1 Suitable temperature and heat dissipation method for pigs

1) Pigs' temperature requirements: The basal metabolism of pigs is the lowest at 25°C; the optimum temperature is 17 to 25°C; the growth rate of pigs is the fastest at 17°C to 30°C, and the feed ratio is the lowest; 75 kg of body weight Fat pigs do not gain weight by eating 1.5 kg of feed at 25°C. The optimum temperature for sows is 22-25°C for pregnant sows, 15°C for sows, and 28°C for piglets. Hog is 17-25 °C.

2) Heat Dissipation: Swine sweat glands are not well developed and can not emit heat through sweating. Rely mainly on exhalation, nasal evaporation of water, stretching the body to the ground and other limited heat. And reduce heat gain by eating less and less.

Pigs weighing more than 60kg, and piglets under 15kg are considered not afraid of heat.

2 Summer cooling

1) Plant greening to improve the microclimate in the field: Increase the green area on the ground of the pig farm and reduce the proportion of the cement floor to reduce the ground temperature. The dense foliage can effectively block the direct sunlight, absorb the heat through the leaves' evaporating water, and at the same time its photosynthesis can also purify the air, thus changing the small environment of the farm.

2) Improve the environment of the pig house: By changing the roof design of the pig house to lower the temperature in the pig house, the roof should be insulated with heat-absorbing grass or special materials, and some roofs can be painted with reflective paint, which can reduce heat absorption. The installation of flushing equipment on the roof can be immediately reduced by 2 to 3°C at room temperature. Extend the width of the roof or add shading equipment to avoid direct sunlight (houses should be oriented east to west). Adding cooling equipment in the pig house, installing ventilation equipment and timely maintenance, effective ventilation can reduce the temperature, so that sows feel cool and reduce gasping, sows (especially overheating heatstroke sows) can effectively blow their nose Reduce heat stress.

The installation of a spray system or water curtain can also immediately reduce the temperature inside, but high temperatures and high humidity should be avoided. At the same time, ventilation must be strengthened, because of the higher temperature and humidity. When the sow is showering, it can spray water for 3 to 5 minutes at intervals of 40 minutes. The sow uses neck drops to cool the sow. The cooling of the neck is best controlled automatically. Drops 0.5 to 1 every 15 minutes. In minutes, you can save water and achieve a satisfactory cooling effect. Increase the number of drinking fountains and the amount of water supply to ensure sufficient water supply. A sufficient amount of water can promote the appetite of sows, and add 0.1% to 0.2% of artificial salt or electrolyte in their drinking water to regulate electrolytes in sows. Balance reduces the occurrence of heat stress. However, while sows are being cooled, piglets must be protected from high humidity and thieves.

Second improvement management

1 Appropriately control the breeding time and reasonably arrange production

The breeding time should be properly controlled and the production should be reasonably arranged to avoid or reduce the number of farrowing sows in the hot season. For high bed farrowing, it is necessary to grasp the changes according to the weather and temperature changes. When the temperature is calm and cool, go to bed about one week before the sow is born, and try to reduce the stress. Through the observation of Wuhan in the past decade, the temperature before and after the beginning of autumn is the highest, and once a week or so after the beginning of autumn, a weather change or rainfall has effectively relieved the high-temperature weather. Sow calving during this period can be reduced.

2 Change the feeding method

For the pigs with higher stocking density, the density should be reduced to avoid crowding, and at the same time the disturbance and stimulation to the sow should be reduced to reduce the stress. Adjust the feeding time, feed in the early morning and evening cool, and ensure that the feed is fresh and palatable. It is also recommended to feed sows with wet mix.

3 Special care stress sows

For postpartum sows who do not have appetite, they should, on the one hand, be fed with green feed and piglets properly. On the other hand, we should isolate the sows, wash the pighouses, keep the sows cool, and if necessary, have more heat stroke and heat stress. Pigs can be enema to lower body temperature. At the same time, heat stress is reduced by subcutaneously dripping and blowing on the nose.

Third, improve nutrition

In the hot summer season, the dry powder should be fed instead of wet mix, but due to the fact that the wet mix can be easily fermented (generally about 4 hours), it should be used with and with sufficient water supply. At the same time, because the feed intake of sows in the summer is generally declining, it is necessary to carefully prepare feed for them to improve the palatability and nutritional level of feeds and reduce their heat value (such as the use of oils and fats and full-fat soybean powder, etc., which can effectively increase the nutrient energy concentration. Reduce heat gain, add heat stress additives to feed to improve nutrition.

Fourth, strengthen the management of sows to prevent the production period and postpartum diseases

All kinds of vaccines are injected in strict accordance with the immunization procedures and records are made to ensure the quality and injection of various vaccines and to play a role. The sows should gradually reduce their weight two days before farrowing, and they can basically do not feed on the day of farrowing. Only the right amount of bran water can be fed, and the feeding is gradually increased after birth. According to the amount of breast milk and the amount of feed to determine the amount of feed, both to ensure that the piglets have enough breast milk, but also to avoid excessive accumulation of breast milk in the breast.

A sow in prepartum raises the disease resistance of the piglet: The sow is injected subcutaneously with VE1000IU or 5mg selenium (sodium selenite in sterile saline) before delivery.

10 ml, 1.6 million penicillin units, and 1 million streptomycin units were thoroughly mixed. The sow was injected intramuscularly within 8 hours after giving birth to the sow, and the double-antibiotic was continued for two days. Or use long-acting oxytetracycline to prevent postpartum diseases.


We mainly export European Chinese onions, garlic and ginger.

Fresh yellow onion and red onion size 60-80mm 70-90mm 90-110mm 10kg/net bag, 20kg/net bag or 25kg/net bag (2019 new crop onion)

Peeled yellow onion and red onion size 60-80mm 70-90mm 90-110mm 10kg / box, 20kg / box, filled with nitrogen, storage time of 90 days.

Frozen onion, frozen onion cube, frozen onion ring 10kg/box or 20kg/box Save for 2 years.

We also offer garlic, ginger and peeled garlic

Our onions have been sold in the Netherlands, the UK, Poland, and Italy, and the quality is very good.

Looking forward to your response, I am very happy to quote you.


WHATSAPP+8613213293300

Garlic.Ginger.onion.peeled Onion.peeled Garlic.frozen Onion Pieces

garlic.Ginger.onion.peeled onion.peeled garlic.frozen onion pieces

henan junzhian food co., ltd , https://www.junzhianfood-onion.com