Key points of Management of growing and finishing Pigs

I. Scientific regulation and control of feeding and management

The optimum temperature for pig growth was 15-21 ℃. When the temperature of the enclosure is higher than 25-30 ℃, the appetite and food intake will decrease, so we should pay attention to it in the process of feeding:

1. Reasonable feeding time to catch two, that is, from 5.00 to 7.00 in the morning and after 16.00 in the afternoon. Because the weather is cool during this period, the pigs have a good appetite and eat quickly. In the amount of feeding in strict accordance with the requirements of its growth and development in different periods of supply, do not oversupply.

2. The temperature in summer is high, the sun is strong, and many kinds of nutrients in feed are easy to be lost under the condition of poor storage. When in use, the feed should be fresh, and the bulk feed can not protect the tower from shade and light, so it is best to fill the bag to prevent the feed from being affected by high temperature, resulting in the loss of vitamins and other nutrient elements.

3. The climate of high temperature and high humidity in summer can easily cause feed mildew. Therefore, the gap in the corner of the bucket and trough should be cleaned regularly. After each feeding, the feed scattered on the aisle and railing should be cleaned and collected in time to prevent the mildew and deterioration of the feed from being eaten by mistake and cause discomfort to the pigs.

4. The supply of sufficient and clean drinking water for fattening pigs in summer is 35% higher than usual, so it is necessary to always check whether the drinking water pipes and drinking water nipples are blocked, and the water bowl is kept clean and free of dirt. The water output of the drinking fountain is controlled above 2L/min.

5. 1.25~1.5m2/ is suitable for reducing the feeding density of finishing pigs. Too high density is not conducive to keeping pigs quiet, and it is difficult to carry out cleaning and disinfection work. In particular, the unexpected sound is that high-density pigs are more likely to cause "fried herds", and pigs pile up and squeeze each other in panic, which is not conducive to the growth and development of fattening pigs.

6. Do a good job in cleaning, hygiene, epidemic prevention and disinfection both inside and outside the field. Make sure there is no rubbish around the enclosure, no floating objects in rivers and ditches, and often clean up places that are easy to breed mosquitoes and flies. The sundries in the field are stacked neatly. It is strictly forbidden to keep other livestock, poultry and pets in the production area, and people who have nothing to do with production are strictly prohibited to enter or leave the farm at will. The entry and exit of pigs and the arrival of feed trucks should be disinfected first and then entered, and pig docks should be cleaned and disinfected in time.

Second, using wet curtain fan to prevent heat and cool down fattening pigs.

1. Cooling principle there are four ways of heat dissipation in pigs: radiation, convection, conduction and evaporation. The temperature is high in summer, so it is necessary to use artificial methods to reduce the enclosure temperature to ensure the physiological and metabolic balance under the normal body temperature of fattening pigs. According to the pig house area and stock density, it is common and easy to install the wet curtain fan cooling system in the pig house. In other words, the cooling measures of longitudinal ventilation and water curtain cooling are adopted in the summer high temperature season to reduce the effect of high temperature on the growth of pigs. Its principle: when the dry and hot air enters the pigsty, it is cooled and humidified through the wet curtain, so that the air cools and enters the pigsty. And then through the fan out of the enclosure at the same time take away the heat, in order to achieve the purpose of cooling the enclosure, generally can reduce the temperature of the enclosure by 5: 8 ℃.

2. correct use of longitudinal ventilation and wet curtain to cool down.

Longitudinal ventilation is used when the temperature in the pigsty reaches 25 ℃ in summer. As the temperature rises, the root

According to the size of the pig population, it is necessary to adjust the number of exhaust fans.

Wet curtains are used when the temperature in the house reaches 30 ℃. However, it should be noted that the temperature in the house will drop rapidly by 2 / 3 ℃ after the use of the wet curtain.

It is necessary to adjust the temperature and the number of exhaust fans to reduce the stress of temperature difference.

When using the wet curtain, in order to ensure the effect of longitudinal ventilation, the air intake windows on both sides of the piggery should be closed, so as to improve the efficiency of directional circulation of air inside and outside the house through the wet curtain and enhance the cooling effect.

Wet curtain water should always be kept clean, preferably recycled water with a filtration system. It is suggested that it should be cleaned thoroughly in about 3 days, and neutral and non-corrosive disinfectants should be added to the wet curtain water regularly for disinfection.

Do a good job in the maintenance of the wet curtain and give full play to the role of the wet curtain. The wet curtain can not play a good role in cooling and humidification in the case of damage, ventilation and serious leakage.