The age of piglet weaning is determined based on the pig's breed, sow's body condition, lactation level, piglet's use, and especially the feed level.
How to determine the weaning age of piglets:
(1) From the point of view of the nature and tasks of the farms, the breeding farms or individuals reserved for breeding pigs should be weaned earlier than they should be. Alien lean species are more suitable at 35 days, and domestic breeds should be better at 60 days. This kind of seedling will grow better under natural conditions and it is better to choose seedlings.
(2) For commodity farms or individuals used for fattening, weaning should be done sooner rather than later to produce the best economic benefits.
(3) From the perspective of equipment, all those who can provide warm, dry, well-ventilated delivery rooms and nursery homes, as well as piglets that can meet the growth and development of piglets and are fed with sucker feed, can be weaned early, otherwise it will cause loss.
In short, weaned (commercial piglets) weaned (commercial piglets) weighing 5.0 to 6.0 kilograms for lean-type breeds and weaned at 6.5 to 7.5 kilograms for breeding or individual seedlings. Individuals with specific properties such as performance determination at feedlots should be weaned at weights above 11-13 kg.
Piglets weaned at one time, weaned in batches and gradually weaned
(1) Gradually weaning method. It is a method to gradually reduce the number of breastfeeding and finally stop breastfeeding. Usually until the age of 4 weeks, the sows are removed during the day to prevent the sows from suckling and the sows are fed to the piglets at night. After 4-6 days, sows are gradually not breast-feeding. The benefit of this method is to gradually increase the piglets' ability to live independently, feed and reduce weaning diarrhea. The disadvantage is that the sows are rushed to the sow every day and it takes time and effort.
(2) batch weaning method. This method divides the weight of the piglets into 2-3 batches of weaned pigs. We first remove the 3 big piglets weaned at the weaning, and then remove 2-3 piglets of medium weight every 2-3 times, and then transfer them every 3-4 days. The last batch of piglets. The advantage of this method is to ensure the growth and development of piglets and not cause the death of diarrhea. The disadvantage is that the weaning time is long and difficult to manage.
(3) A weaning method. It means that at a certain age, weaned all at once and the mothers are separated. This weaning method divides the mother's retention and the mother's two methods. To remove the mother's sow is to transfer the sows to other pens, still keeping the piglets in the original circle; the other is to remove all the piglets and leave the sows in the circle. To remove the mother's sow is to change the piglets' environment. Not too sudden, otherwise it will cause nerve tension and affect weight gain and health. The method of weaning to the dear mother was adopted when the piglet was weaned at a relatively large age (usually 5-6 weeks). Piglets are more adaptable due to their older age.
Feed gradually changes. The milk replacer was fed from 3-5 days before weaning and gradually turned into pellets. The weaned pigs were fully adapted to the solids at weaning. Usually weaned pigs are cut on the day of weaning and turn normal after 2-3 days. At the beginning, we prevent piglets from indigestion and feed only 70% satiety. After 3-4 days, piglets are allowed to feed freely.
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