Pig offspring production and sow pregnancy

In the period leading up to mating or insemination, sows need full feeding with constant access to the paddock, tethered grazing or plenty of green fodder in the machine.

A sow requires approximately 3.2-3.6 feed units per day and 300-350 g of digestible protein, which is provided by concentrated, juicy, green and coarse feed and food waste. By the time of mating, the sow should be of average fatness. In the insufficiently well-fed, the onset of mating is delayed, and if it does occur, then after mating, some of the embryos may resolve. The state of obesity is no less harmful during this period. Fat sows, as a rule, produce 5-6 piglets with reduced viability.

Mating of a sow


Sows come hunting 5-12 days after weaning piglets. In the future, if the sow has not been fertilized, every 18... 21 days. In young pigs, hunting is manifested from 4-5 months, but it is possible to start mating no earlier than 8-10 months, when a live weight of 100-120 kg is reached.


To get piglets at a convenient time of the year, you can skip one or two hunts so that farrowing occurs by a certain date. However, repeated skips can negatively affect the quality of the next offspring.


Sow hunting is accompanied by estrus and lasts 22-28 hours. The signs are: loss of appetite or refusal of food, anxiety, voice changes, attempts to leave the machine, eyes glow with ruby light as a result of strong filling of blood vessels. It is necessary to inseminate or artificially inseminate when the immobility reflex occurs (when pressing the hand on the lower back, the sow bends it, but does not move).


The sow is usually covered twice with an interval of 12...20 hours. If the offspring are planned to be fattened, it is advisable to cover it with a boar of another breed in order to obtain cross-breed piglets that grow faster and get sick less. If pigs from the offspring are left for the tribe, it is necessary to deal with the boar of the breed to which it belongs.


Veterinary regulations do not allow private sector sows to mate on the territory of collective and state farms. Therefore, it is necessary to contact the nearest collective farm or state farm engaged in pig breeding in advance and conclude an agreement on artificial insemination. Within three weeks after mating, if fertilization has not occurred, the sow is covered again.


After fruitful mating, the sow consumes more feed, noticeably increases its weight, and after three months it has pronounced signs of pregnancy: a rounded, somewhat sagging belly, enlarged udder lobes and nipples, it becomes cautious, does not make sudden movements.


Pregnancy of the sow


Pregnant sows are kept in a bright, dry room, and the diet is slightly increased. From the eightieth day of pregnancy, the fruits begin to grow rapidly in weight. From now on, it is necessary to add concentrated feeds.


Insufficiently well-fed sows, especially young ones, retard the growth of piglets in the womb. They produce weak, underweight piglets (no more than 0.8 kg). Obesity during pregnancy is no less dangerous. These are usually infertile (5-7 piglets per litter) and low-milk.

The optimal condition of the sow at the time of farrowing is above average fatness. This is ensured by plentiful feeding and regular walks or keeping in a spacious pen. Starting with a well-known bookmaker is always accompanied by pleasant surprises for beginners. To get the maximum from your first deposit, simply fill out the registration form correctly. A special code in the right field changes the reward size for the better. After entering it, 1xbet promo code for registration bonus up to $130 with the possibility of increasing up to $200 in some regions takes effect. These additional funds are perfect for betting on big matches and tournaments. Players often use them to test various markets and strategies.