Why do pig farmers now only plow boars and not sows

Environmental pollution problems.

Rural pig breeding restrictions are mainly for large-scale farms, requiring that their site selection can not be located in the upwind direction of environmentally sensitive areas (such as residential areas), to have a certain sanitary protection distance from sensitive areas (to prevent pig manure and urine odor pollution), not to occupy basic farmland, pretreatment facilities with pig manure and urine pollutants (mainly sedimentation tanks), composting sites to prevent seepage, etc. Pig farms should conduct environmental impact assessments according to the number of breeding, floor area, environmental sensitivity, etc., and prepare different environmental impact assessment documents, usually requiring a scale of more than 200 heads.

For the small number of free-range pigs in rural areas, there is no need for the approval of the Environmental Protection Bureau. However, if environmental pollution occurs due to the pig breeding process (pig manure urine leachate pollutes surface water and groundwater; If the odor emissions affect the water and air quality of the surrounding residents and units, the Environmental Protection Bureau will deal with it, and will require the pig farmers to rectify it, and those who fail to deal with it within the time limit will be fined.

Because of the pollution problem of breeding, the state strictly restricts the development of the breeding industry in the southern water network area, and delineates three areas for pig breeding

1. Key development areas:

Hebei, Shandong, Henan, Chongqing, Guangxi, Sichuan, Hainan, the region has a large total amount of breeding and large transfer, and will become the core area to stabilize China's pork supply, and the state will vigorously support it.

2. Constrained development area:

Beijing, Tianjin, Shanghai and other large cities and Jiangsu, Zhejiang, Fujian, Anhui, Jiangxi, Hubei, Hunan, Guangdong and other southern water network areas, the state will be strictly restricted.

3. Potential growth area:

The four northeastern provinces (Liaoning, Jilin, Heilongjiang and Inner Mongolia) and the two provinces of Yunnan and Guizhou, the state encourages leading enterprises to establish production and processing bases here, and strongly supports them.

Hello, it is a pleasure to serve you and give you the following answer: Raising sows means feeding sows in order to obtain their reproductive ability in order to obtain more piglets. From a long time ago, there were some problems in the technology of raising sows, such as low reproductive efficiency, low production efficiency, poor health of piglets, and more serious diseases than cultivation.

To solve these problems, some measures can be taken, such as:1Strengthen the feeding management of sows, such as increasing feed intake, increasing intensive care, etc., to improve the reproductive ability of sows.

2.Strengthen the maintenance and management of piglets, such as increasing the activity of piglets, increasing feed intake, and improving the environmental posture conditions of piglets, so as to improve the health status of piglets. 3.

Strengthen vaccination management, regular vaccination, and effectively prevent the occurrence of diseases to reduce the incidence of diseases. 4.Strengthen the training of reproductive technology to improve the reproductive efficiency of sows and reduce the adverse reactions of breeding.

Feeding must be nutritionally complete, so that the boars are neither too fat nor too thin, and the back should be flat but not fat. The diet is mainly concentrated, appropriately matched with green feed, and less feed with high carbohydrate content is used to prevent pigs from becoming overfat.

Breeding boars are very important in the process of breeding, and generally need to add some nutrients to the feed to maintain physical strength. In this way, it can be beneficial for breeding.

Breeding boars should be adjusted according to the boar's weight, age and working status, while the adult boars should be kept relatively lean and the boars should be in a positive working state.

The feed given to the breeding boar must be very nutritious. Add more feed containing vitamins and minerals. Be sure to keep the pigsty clean.

It can shine well into the sun. Let it exercise more and exercise more, too. Feed more feed.

Reduce the amount of exercise during the travel period. Pig dust beats are checked regularly.

First of all, it is necessary to make sure that the breed next to the bend of the bend, as well as the condition of the body, and then according to the different varieties of feeding with rubber, generally need to be fed about 3 kg of feed per day, and to feed twice a day.

First of all, you must control the amount of food you eat. In fact, it is best to feed the tide mixture well, add an appropriate amount of water to the dry mixture, stir evenly, and then feed it to the breeding boar.

Usually we must feed nutritious feed, let the boar bask in the sun, to ensure the health of the fierce people in the spring, to keep the bridge with sufficient water and additional nutritious feed.

Breeding boars should choose some nutritious feed for feeding, and should also be supplemented with some water, and should also add some glucose to the water.

Generally, it is necessary to match with other plants and grains, and at the same time, it will also choose a feeding bridge that is more suitable for boars at each stage.

When feeding, concentrate feed should be the mainstay, but also feed an appropriate amount of green feed or green storage material, and the feeding amount should not be too large.

When breeding boars, it is necessary to pay attention to adding more fiber and amino acids to the feed, so as to supplement the nutrition of the boar itself and grow well.

Be sure to feed it nutritious feed in your life, and then keep its environment ventilated so that it can grow well.

Whether to raise boars or sows mainly depends on the use. If it is self-breeding, by selling piglets or selling pigs, you should raise sows; If you want to breed or sell sperm, you should raise boars. Whether it is raising boars or sows, the purpose is to make money.

But the premise is to raise the pigs well. First, do a good job in basic vaccine epidemic prevention; Second, do a good job of daily nutrition and health care; Third, strengthen feeding management and scientific pig raising; Fourth, timely elimination.

OK. 1.Parity is not related to the litter size of the sow itself and the reproductive performance of the sow, and the offspring of different parity inherit the same DNA and genes from the sow (which may vary from boar).

3.Breeding farms may cull sows before parity 3 to speed up the generation spacing. 4.

If your sow is a binary sow, the offspring is the offspring of a binary sow crossed with a Duhoroc, and the offspring is planned to be used for mating with Duroc. It is not advisable to keep the seeds, as the hybrid advantage is significantly reduced.

It is pig farming.

Pigs, that is, living pigs, are a general term for domestic pigs that have not been slaughtered, except for breeding pigs. Pigs, omnivores. Pigs generally refer to domestic animals. The pig is the end of the zodiac and is also called Hai. Mammalian guess or animal, fat body, short limbs, long snout muzzle.

Raw pork can be eaten with ears, the skin can be tanned, the body fat limbs are short, the sex is tame, the adaptability is strong, it is easy to raise, the reproduction is fast, and there are black, white, sauce red or black and white flowers and other colors. Pigs can be bred 5-12 months after birth, and the gestation period is about 4 months. The average lifespan of a pig is 20 years.

Pigs are also known as "Ugin", "Black Faced Lang" and "Black Lord". "Chaoye Baizai" said that the people of Hongzhou in the Tang Dynasty raised pigs to get rich, and called pigs "Wujin". Tang Dynasty "Yunxian Miscellaneous Records" quoted "Chengping Old Compilation":

The black-faced lang is also called a pig. "In the land of China, as early as the period of matrilineal clan communes, pigs, dogs and other domestic animals began to be raised. The pottery pig unearthed from the Neolithic Cultural Site of Hemudu in Yuyao, Zhejiang Province is very similar to the shape of the domestic pig, indicating that the domestication of the pig at that time had a rudimentary form.

Mammalian artiodactyl pigs are omnivorous meat animals. Domestic pigs were domesticated from wild boars. It has the characteristics of strong fecundity, fast growth, high feed utilization rate and wide eating habits. Pork is delicate and delicious, rich in nutrition, and is one of the main meat foods of human beings.

In addition to fresh meat for consumption, it is also suitable for processing into ham, cured meat, sausages and meat floss. Pig skins, bristles and casings can be used as industrial raw materials. Pig blood and pig bones can be made into blood meal and bone meal respectively for feed. The internal organs and glands of pigs can be used to make a variety of medical medicines.