Weaned piglets in winter increase survival rate
The sorrow of the farm is that the sows don't give birth, and the greatest sadness is that the litter can not keep up. Surveys have shown that the mortality rate of piglets in most pig farms is relatively high. In some pig farms, the maternal mortality rate is higher, and the survival rate of more maternity wards can reach 97%, while the survival rate of nursery is only about 93% (target survival rate is above 98%). The piglets were very healthy before weaning, but they were weaned and began to have hairy pine, diarrhea, and weight loss, which led to long pale hair, swollen joints, difficulty breathing, neurological symptoms, etc., eventually dying or becoming stiff pigs. Some of the bosses are reluctant to eliminate such sick pigs. As the sick pigs are detoxed to the outside world for a long time, the overall health of the pig farm has decreased, and the disease has become more frequent, resulting in greater losses.
In response to the above issues, I pointed out several misunderstandings in the management of piglets common in pig farms and put forward the following suggestions:
Strengthens the feed slot for piglets in the delivery room
The most important indicator for improving the survival rate of piglets after weaning is the feeding condition of the piglet. If the piglet learns to eat the chute material before weaning, even if the piglet is only 6 kg when weaning, the survival rate of the piglets after weaning will also increase significantly, and the weaning will be weaned. It is not easy to lose diarrhea, and it can sustain growth. The feed-to-meat ratio will also decline during the whole process. However, the sows are weaned about 23 days of age in advance, which can increase the number of parity of sows and increase the annual productivity of sows. , Shorten the number of days of non-production of sows and greatly increase the economic benefits of the farm. Of course, we cannot absolutely adopt the method of weaning for 23 days. When weaning, we must consider factors such as piglet health, piglet size, feed intake of piglets, parity of sows, sow's moisture, weather changes, inventory turnover, and epidemic situation.
Reasonable piglet care
For the health care of weaned piglets, we must choose to enhance the body resistance of the Chinese medicine extract astragalus polysaccharides, Epimedium extract and non-immunosuppressive antibiotics, such as cephalosporins, compound amoxicillin and so on. A large number of swine farms have verified that: When weaning, after 7 days, or during the transition, and during refueling, the incidence of piglets is significantly reduced, the uniformity and growth rate of piglets are significantly improved, and the vaccine during the nursery period is not affected. The immune effect can also improve the immune response and improve the uniformity and protection of the antibody.
Strengthen the control of ambient temperature
Prevent excessive temperature difference between day and night
The piglets have higher temperature requirements when they are stressed. Therefore, when the piglets are weaned and switched to the group, they must turn on the heat lamp, cover the insulation box cover, and put insulation pads and wood boards on the piglets so that the temperature of the pens can be increased by 3°C before weaning. At 28°C, winter is even more important. Many pig farm workers think that the piglets are large and do not need to be insulated. People think that the piglets are not cold because of the feeling of temperature. Especially at night, careful observation will reveal that the piglets are weaned before In one week, all the piglets were crowded in a pile at night and slept with each other, so that in a few days, the pigs would definitely become ill, especially piglets whose health status was relatively poor.
Reasonable piglet feeding methods improve feed utilization
Piglet weaning stress will cause shortening of piglet's intestinal villi and decrease of feed digestibility. Moreover, piglets usually eat milk once every hour or so and are accustomed to eating small meals. Most pig farm piglets can be fed a day after weaning. 4 meals, prone to feed digestion and malabsorption, diarrhea, decreased immunity, and then infected with Haemophilus parasuis, circovirus, etc., joint swelling, hair loose, pale, weight loss, difficulty breathing and other issues. It is recommended to use a small number of multi-meal feeding methods to get up from the morning and feed it every 2 hours at 10 o'clock in the evening, feed 80% satiation each time, and add a probiotic to promote digestion and absorption in the diet. Relatively more feed than before, it will not be diarrhea, piglets grow faster, 10 days before going into the fat pig house, slowly reducing the number of meals fed, adjusted to feed 2 meals to 3 meals a day.
The timing and method of refueling should be reasonable
Before the refueling, the status of the piglets must be checked. Replacing the piglets with a body weight of 10 kg or more, strong feed digestibility, and high health can significantly reduce the incidence of piglet refeeding stress; piglet weaning weight In the case of low and poor health, it is necessary to extend the feeding time of the feeding channel. The reloading needs to be gradually carried out according to the situation of live pigs. It is not possible to adopt a one-off, three-day change. When the piglet excrement does not form, stop increasing the proportion of the replacement nursery, and appropriately control the amount of feed, and add sulfuric acid to prevent diarrhea in the feed. Neomycin (such as bacteria elimination) and other drugs.
Carefully check the health of the piglets and find and treat the pigs in time
Generally, reasonable methods are used to treat piglets at the early stage of their onset. When piglets were found to have loose hair, low feed intake, and poor spirit, they were immediately isolated and the heat preservation was strengthened. Since the main infected bacteria in piglets were Haemophilus parasuis, streptococcus, pleuropneumonia, Escherichia coli, Salmonella, etc. Effect of cephalosporin broad-spectrum sterilization, in the early stage of disease injection treatment effect is significant, so when the pig was found in the selection of long-acting cephalosporins, the circovirus, blue ear disease, etc. also have a good control effect. At the same time, it is necessary to supplement multidimensional and strengthen intestinal health maintenance.
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