The highest incidence of swine disease in spring? This is how experienced veterinarians treat it! Simple and efficient

In the late winter and early spring season, the weather is dry, the most prone to pig trotter fissure, pig trotter fissure refers to pig trotter shell cracking or slight bleeding from the cracks of the limb hoof disease, pigs in this disease, mobility is inconvenient, growth is hindered, reducing fecundity.

　　Maybe everyone feels that this disease is minimal, no big trouble, today I will tell you in detail what harm the sow trotter disease causes to the pig? According to rough estimates, the direct and indirect losses caused by hoof splits per sow can reach more than 200 yuan per year.

　　Hazards from sow trotter rift disease:

　　The problem of sow trotters is generally underestimated, and the severity of the impact on economic efficiency is not noted.

　　1. Once it occurs, it is difficult to cure in the short term, and the sick pig has an unstable gait, hanging hoof, lame or even crawling, resulting in the sow being eliminated.

　　2, excellent breeding pigs, especially imported breeding pigs, the general incidence of 20%-70%, huge loss of "foreign" pigs is difficult to raise!

　　3. Hoof splitting has caused great losses, but breeding pigs are hindered with growth and development, and reproductive performance decreases, and the loss is greater. Nursery pigs and fattening pigs gain weight slowly and have low disease resistance.

　　4. Hoof cracks are easy to cause other diseases.

　　Local pain after the occurrence of hoof cleft, inconvenience of getting up, due to less movement on the ground, secondary muscle rheumatism, some abrasive skin to form a local abscess.

　　Sow activity and feeding intake are reduced, affecting breeding and fetal development; sows are emaciated, milk is scarce, nursing piglets have poor growth and development, are prone to diarrhea, and have high mortality.

　　5. The impact of hoof fissure on breeding pigs is very serious, not only affecting the movement, appetite and sexual behavior of pigs, but also secondary to muscle rheumatism and joint inflammation of limbs.

　　Causes of sow trotter rift disease:

　　1. Weather reasons

　　The cold season in the north is long and the ground temperature is low. If the hooves have few blood vessels, if they are in contact with the cold ground for a long time, the microvascular constriction, resulting in a decrease in blood flow to the hooves, the nutrients obtained by the hooves continue to decrease (especially biotin, etc.), and the hoof shell becomes brittle and easy to crack. Therefore, the breeding pigs in the north in winter must have preventive measures.

　　2. The lack of feed biotin for a variety of reasons

　　(1) The content of biotin in the premix, concentrate and full-price feed used by sows is insufficient, which may not have many problems in the southern region, but in the north, it will lead to the lack of biotin in the sow body.

　　(2) Long-term single use of corn/soybean meal type diet, itself lacks biotin. Biotin-rich raw materials mainly include fermentation by-product feed, yeast and green feed.

　　(3) Feed processing process impact.

　　The whole process of using granulated feed, due to the heat treatment during the granulation process, resulting in the failure of biotin; dried corn, hot soaked soybean meal, will also make biotin ineffective.

　　(4) The content of chemical substances such as heavy metals in the feed is too high.

　　High copper, high selenium, high fluorine, etc. will directly destroy biotin.

　　(5) Zinc deficiency.

　　Zinc is involved in the metabolism of body matter, zinc deficiency often appears inkeratosis of the skin, dermatitis, hair removal, hoof cleft, sow calving reduction and so on. High calcium, high phosphorus or high phytic acid can seriously affect the absorption and utilization of zinc.

　　(6) Sulfur-containing amino acids are insufficient

　　Sulfur-containing amino acids are involved in the synthesis of keratins in the hooves, and some sulfates enter the coats, horns and hooves of livestock in a binding form. Insufficient sulfur-containing amino acids, affecting the growth and metabolism of hooves.

　　(7) Calcium and phosphorus ratio imbalance: long-term feeding of high phosphorus or high calcium feed, pigs are fluffy, hooves are torn, hooves are easy to infect, difficult to cure.

　　3. Pig house ground problems

　　Fine sand cement ground like a grinding wheel, the wear of the pig's trotters is the most serious, more serious than the stone coarse sand cement ground to face the pig's trotter damage, the cement floor is smooth but the rough ground is relatively better; too rough pig house ground, it is best to use mechanical grinding, but also can not be too smooth, and the slope of the pig house ground is maintained at 3% to 5%. The large area of the leaky seam floor and strip floor will also increase the hoof damage.

　　4. Variety and age

　　The hooves of long white pigs suffer from hoof cleft disease due to genetic reasons, which are most prone to wear and tear;

　　Gilts and young pregnant sows due to weight gain and limb and hoof development disorders, so that the limbs and hooves to increase the pressure, the hoof pads are delicate, easy to wear and tear cracks, hoof shells are thinner, hoof cracks occur.

　　The choice of reserve breeding pigs, especially the long white pigs, should pay attention to whether the breeding pigs land on the ground with the tip of the hoof, usually the hoof tip has a relatively strong pig trotter.

　　5. Limit fence feeding method

　　Breeding sows spend a long time in the limit bar, the movement is reduced, the disease of the pig's trotters increases, and the hoof cleft disease is the most prominent and frequent.

　　6. The pig house is humid all year round

　　The bottom of the pig's trotters is moist for a long time, and coupled with the multiplication of bacteria, the hooves are prone to ulceration.

　　7. Disinfectant problem

　　Do not choose strong acid and strong alkali disinfectant for pig disinfection, you can choose hydrogen peroxide, benzalkonium bromide and other disinfectants.

　　8. Drug problems

　　Long-term use of sulfonamides for treatment or prevention will competitively inhibit the activity of biotin.

　　Symptoms of a sow's trotter:

　　Early symptoms of a sow's trotters begin with a mild crack in the hoof nail (i.e., a lateral or longitudinal cracking of the base of the hoof and crown), followed by enlarged wounds, bleeding, and inflammation from pathogenic infection, leading to early elimination.

　　Sows with cracked hooves mostly show painful symptoms such as slippage, arched back, tremor, and limp when standing or walking, and in order to reduce the pain caused by weight-bearing standing, the pigs are more lying down. But pay attention to the distinction between sow trotters and foot-and-mouth disease symptoms. The former is characterized by cleft hoofs, local pain, and low movement on the ground, while the latter is characterized by blisters and erosions in the hooves. It is accompanied by systemic symptoms such as elevated body temperature.

　　Prevention of sow trotters:

　　First, improve feed nutrition

　　Feed a full-price, balanced feed that ensures a supply of energy, minerals and vitamins, especially biotin and linoleic acid.

　　01. Ensure adequate supply of calcium and phosphorus and appropriate proportions. Insufficient or improper proportion of calcium and phosphorus in the feed can easily cause a crack in the bottom of the hoof.

　　02, to meet the needs of trace elements and vitamin D. Promotes Ca, P absorption and healthy bone development.

　　03. Add biotin. It improves hoof shell hardness, compressibility and compressive strength, improves skin and coat condition, and reduces hoof shell fragmentation and hoof pad damage. Sows that have hoof splits occur and are fed with a doubling of the biotin mixture.

　　04, improve the absorption of linoleic acid. When formulating breeding pig feed that is prone to cracked hooves, it is recommended to use naturally dried corn, add soybean oil or a certain proportion of puffed soybeans (naturally dried corn is rich in linoleic acid and unspoiled; both puffed soybeans and soybean oil contain a lot of linoleic acid).

　　2. Strengthen comprehensive management

　　01. Breed varieties with strong resistance to limb and hoof disease.

　　02, the cement floor should be appropriately smooth: but not too polished, to prevent slippage, flash damage to the hoof, and not too rough at the same time.

　　03, the positioning bar of the sow with the appropriate slope: flat on the appropriate slope to prevent the accumulation of water and urine.

　　04, strict biosecurity system: control feed mildew, pigs drinking water to meet drinking water hygiene standards, toxic and harmful substances do not exceed the standard, programmed disinfection, immunization, health care, as far as possible to reduce the "sub-health" of sows.

　　05, in the sow production to minimize all kinds of stress: the pig farm should regularly let the sow to outdoor activities, exercise limbs and hooves, receive sunlight.

　　06, add feed biotin and zinc methionate: every spring, winter or found that 30% of sows have hoof cracking phenomenon, can be in pregnant, nursing sow feed (on the basis of using 4% premix), add 2% biotin 100g / t + zinc methionate (organic zinc content ≥ 15%) 300g / t, for 14 days.

　　07. For breeding boars suffering from more serious hoof cleft disease and secondary muscle rheumatism, the treatment method is: to improve the pig's pen environment, lay soft cushion grass in the house, increase the temperature and reduce the humidity; add 2 eggs and about half a kilogram of carrots to the pig's feed every day; spray the hoof crack with propolis preparation, wait for the propolis preparation to dry, apply with homemade ointment (vaseline plus cephalosporin), and make a hoof guard, and put on all four hooves of the pig after applying the homemade ointment.