Technical points of checking whether pigs are healthy or not

At present, the production in China is still mainly free-range farming by farmers. However, due to the lack of scientific knowledge and concept of pig raising, the scientific and technological content of pig breeding, feed preparation, feeding management and disease prevention in production and operation is very low. There have been some problems in pig production, such as slow weight gain, low feed utilization rate, low management efficiency and even loss. Breeders and veterinary technicians should inspect and observe the health status of pigs every day and deal with problems in a timely manner. In order to check whether the pigs are healthy or not, it is generally necessary to master the following technical points:

1 check the body parts of the pig

1.1 the skin of healthy pigs is clean, shiny and elastic. If the skin surface swelling, ulcers, small nodules, many places appear erythema, especially the appearance of needle-sized bleeding points, finger pressure does not fade for morbid.

1.2 the nose of healthy pigs is moist and clean, while that of diseased pigs is dry and cracked, with more turbid mucus.

1.3 the ears of healthy pigs respond flexibly to external sound, the hands touch the ear root with a smooth and moist feeling, the sick pig ear root is hot or cold, and the ear is inflexible.

1.4 the surrounding anus of anal diseased pigs is not clean and is morbidly contaminated by a lot of dilute feces.

1.5 the tail of a healthy pig curls up and swings from side to side. Those with sagging or fixed tails are morbid.

2 check the mental state of pigs

2.1 Spirit before feeding the pig, first check the spirit of the pig. Such as the pig's spirit is depressed, the eyes are godless, have eye shit, or often lie in the corner of the wall, walk behind, sway, are morbid.

2.2 the breathing of healthy pigs was uniform, the range of normal respiratory frequency was 1020 beats / min, and the normal pulse number was 6080beats / min, while cold, fever, poisoning, infectious diseases and other pig diseases were accelerated or difficult to breathe.

2.3 the barking of healthy pigs is clear, while that of diseased pigs is hoarse and whining.

3To examine the physiological digestion, growth and development of pigs.

3.1 healthy pigs have a strong appetite and eat more and faster. Generally, they can eat up within 10 to 15 minutes when fed with normal food intake. If pigs do not respond or are slow to respond, it is morbid to eat less or not to eat.

3.2 drinking water of healthy pigs, generally drinking water regularly after feeding; such as irregular drinking water or excessive drinking water and non-drinking water is morbid.

3.3 whether it is morbid that pigs often gnaw on soil, charcoal blocks, enclosure floors and fences.

3.4 the faeces of healthy pigs should be checked when feeding them. If the droppings are thin or dry and hard as beads, the abnormal color or smell is morbid.

3.5 urine of healthy pigs is transparent and clear; if cloudy or opaque, it is morbid.

3.6 the normal body temperature range of body temperature pigs is 38 ℃ ~ 40 ℃, both high and low are abnormal.

3.7 growth and development in the feeding process, every 30 days or so, select 3% to 5% of the representative moderate weight pigs in the pig herd to weigh and calculate to see if the weight gain of the pigs has achieved the desired goal, and then take corresponding measures.

4 check the nutritional status and environmental conditions of pigs

4.1 nutritional status of pigs if the daily gain of pigs is generally low, it means that the nutritional level is low, and nutrition must be strengthened to enhance the physique of pigs.

4.2 feeding density of pig herd the feeding density of pig herd is too large, which directly affects the growth, development and health of pigs; if the feeding density is too sparse, reducing the utilization rate of enclosure will cause waste. Generally, 10-25 fattening pigs are used as a group, and the bed area occupied by each pig is 0.8-1.0 square meters.

4.3 the temperature of the pig house is too high or too low is harmful to the growth and development of pigs. The temperature is suitable, the pig shows exuberant appetite, outstretched limbs, quiet sleep, fast weight gain and high feed reward. The optimum temperature for pigs is 15 ℃ ~ 23 ℃.

4.4 the long-term accumulation of faeces in pig pens and gutters, which is easy to ferment and give off peculiar smell, pungent and dazzling, affecting the appetite, growth and development of pigs, it is necessary to clean up and disinfect in time.

4.5 Piggery equipment to check whether the pigsty leaks in summer, whether it leaks in winter, and whether the pigsty, pig bed, feeding trough, water pipe and other equipment are in good condition, and deal with any problems in time.

In short, there are many factors restricting the rapid and sustainable development of China's pig industry, while the poor quality of the breeding team, imperfect technical service system and poor health concept of epidemic prevention occupy an important position. If pig breeders can adhere to the principle of "prevention first" and carry out strict prevention, timely and correct diagnosis and serious and effective treatment of all infectious diseases, parasitic diseases and nutritional and metabolic diseases that affect pig health, then, modern veterinary science and technology can completely control the epidemic disease in pig farms.