Why does the pig bite its tail? What about pig biting?

Pig bite tail is a clinical manifestation of porcine stress syndrome, usually occurring at a large scale in large-scale, intensive large-scale farms. If the pig is not treated in time after the pig bite, it may lead to joint swelling and phlegm in the pig. In severe cases, the sepsis will cause the pig to die and cause economic losses to the farmer. Therefore, the farmer encounters in the daily management work. The situation of pig biting tail should be taken seriously!

猪为啥会咬尾巴?猪咬尾怎么办?

First, the reason for pig tail biting

1, the pig's own factors. Because the pig's sense of smell is sensitive and likes to eat blood, it is easy to form heterophile. When a pig's tail is bitten, it will bleed, causing other pigs to continue biting to make the tail biting more serious. The wound further worsens the severity of the bite and causes a more serious tail injury. The pig's ability to imitate is extremely strong. When the pigs bite the tail, other pigs will imitate this behavior if they are not controlled in time, which will cause serious consequences for the spread of the whole pig. The phenomenon of pig biting is different depending on the sex of the pig. Usually, the boar is more serious than the sow.

2. Nutritional factors. The lack of one or several nutrients in the diet can lead to the endocrine of the pig and the disorder of the body's metabolism, causing some abnormal behaviors in the pig, such as insufficient protein in the diet, lack of essential amino acids, and energy-to-egg ratio imbalance. It can cause disorder of protein metabolism in pigs and cause pigs to excite and bite each other; when the salt is lacking, it will also increase the bite tail; when the minerals in the feed are lacking, such as the serious deficiency of phosphorus, the pigs will appear arched and bite each other and cause biting .

3. Management factors. Management factors are the main factors that cause pig tail biting. It is unreasonable to group pigs before breeding. If there is a large difference in individuals within the pigs, a bite will occur between the pigs. When the herd population is too large, it is difficult to establish a good group order, thus increasing the frequency of mutual biting. The trough in the pig house is not enough for the pigs to bite because of the feed during the feeding process, or the pigs with weak constitution are squeezed out because they can not get the feed, and they will attack during the waiting process. Pigs fed feed cause trauma. If the breeding density of the herd is too large, it will increase the possibility of biting between the pigs. In addition, when doing some daily work, such as feeding, transfer, weighing, immunization, etc., improper methods, or other animals into the pens to scare the pigs, easy to cause stress response in pigs, And the pigs appear to be irritated and bite.

4. Environmental factors. When the breeding environment is too bad, such as the temperature inside the house is too high, the relative humidity is too large, the cleaning of the manure is not timely, the air quality in the house is poor, the concentration of harmful gases is too high, and the light in the house is too strong. Affecting the normal body and feeding of pigs, the pig's sensitivity is enhanced to cause biting.

Second, the prevention of pig biting tail

In order to effectively prevent the occurrence of pig tail biting, an integrated approach is needed. The timely tail-cutting and tooth-cutting after piglet birth is an effective measure to prevent pig tail biting. The method of tail-cutting is used at a higher frequency. You can choose to have a tail-clamping method to cut the tail of the piglet by 1/3 or 1/ 2 cut off, to prevent bleeding from bleeding. In the process of breeding, the pigs should be reasonably grouped. When grouping, the pigs should be grouped according to the breed, weight, constitution and feeding situation and try to achieve full access.

1. Control the proper breeding density to make rational use of the pig house space. According to the weight of the pig and the breeding season to determine the most suitable breeding density, usually 10 to 20 piglets per group, 6 to 8 fattening pigs, breeding boars in a single column is appropriate, weaning Piglets cover an area of ​​0.23~0.33 m per head, 0.4~0.6m for 3~4 month old fattening pigs, 0.6~0.8m for 5~6 months old, and suitable feeding density for cooling in summer. In order to keep warm, the stocking density can be increased.

2. Strengthen daily management. Sufficient troughs and drinking water devices should be installed in the pig house to avoid the phenomenon of grabbing water and grabbing food. The noise near the pig house should not be too large to avoid disturbing the rest and feeding of the pig. Pay attention to the lighter movements during daily feeding, injection, and group transfer, so as not to cause stress reaction in pigs.

猪为啥会咬尾巴?猪咬尾怎么办?

3. Provide appropriate nutrition. The demand for nutrients and the proportion of nutrients in different stages of pigs are also different. When providing nutrition, it is determined according to the physiological needs of pigs at different stages. It is necessary to provide a full-price feed that is comprehensive in nutrition and reasonable in proportion, and avoids the lack of certain nutrients in the feed and causes metabolic disorders in the pig body. In addition to providing daily feed, you can also feed a certain amount of green feed to ensure the intake of vitamins and trace elements in pigs.

4. Provide a comfortable breeding environment for pigs. Pay attention to the control of temperature, relative humidity and air quality in the pig house. Do a good job of summer heatstroke prevention and cooling work in winter. Maintaining good daily ventilation Even proper ventilation during the winter is important for controlling the temperature, relative humidity and reducing the concentration of harmful gases in the house. In addition, it is necessary to maintain the environmental sanitation in the pig house and do regular disinfection work.

When the farmers find that the phenomenon of pig biting has already occurred, it is necessary to take corresponding measures in time, such as isolating the pigs that love tail biting and the injured pigs, and treating the injured pigs to prevent infection, and also try to disperse the pigs. Attention and so on.

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