Variety selection of finishing pigs
Three-way cross is a binary sow produced by crossing Landrace and York, and then a piglet produced by Duroc as the terminal father. It is recognized as an excellent fattening pig at home and abroad. Each pig farm or specialized household can be determined according to its own economic strength. Strong foreign breeds can be used for fattening, and cross offspring such as Du Changda and Du Dachang are called sheep ternary piglets. Or go to some large-scale improved pig farms to buy ternary piglets for fattening. Those with poor economic strength can cross local excellent sows with imported pig breeds, and produce commercial pigs with crossbred offspring such as Changben and Du Daben, which is called Sanyuan.
How to choose fattening piglets
A look at the uniformity, the neater the growth and development of piglets, the better the quality. Second, look at the weight, piglets of similar age, the greater the weaning weight, the better. Third, look at the coat color. Piglets should have bright coat colors. Fourth, depending on the health condition, we should be physically strong and mentally good. Fifth, see if the ear is oily, indicating that the health level and nutritional status are good. Sixth, look at the distance between the last pair of nipples. People who are far away are generally willing to eat, grow fast and raise well. Seventh, look at the gloss of the hoof shell. If it is good, it means it is healthy and good. In short, piglets are required to be good hybrids with good health and good growth and development potential.
What should new pigs do when they enter the pen?
1. First, clean the empty pigsty or fence thoroughly.
2. Spray and rinse with 2% ~ 3% caustic soda water, and scrub walls, feeding troughs, floors, doors and windows. After disinfection 1 ~ 2 hours, rinse with clean water.
3. After air-drying, it should be disinfected by spray of Baidusha. It is best to bake with a flame sterilizer.
4, before the new pig into the pen, apply insect repellent to the pig inside and outside once.
Group adjustment of new pigsty
Piglets should be classified according to their size, strength and variety when entering pigs, which is convenient for feeding management and avoids bullying the big with the small and affecting the health of pigs.
Feeding of finishing pigs
1, the feeding of finishing pigs should be timed, quantitative and fixed times, and cannot be changed at will. Cultivating fixed conditioned reflex is beneficial to the full digestion and utilization of feed.
2. Feeding amount. Pigs should be fed three times a day, and those under 25 kg can be fed four times a day. The feeding amount is the weight of the pig ×0.04. Piglets should be more appropriately, and big pigs can be reduced appropriately. In practice, it is concluded that the best way to master the feeding amount of pigs is eight words: "Don't lick the trough when you are full." Let the pigs eat without feed, the sign of eating is not licking the trough, and leaving some residue is the sign of not licking the trough.
3. Feeding methods. The feed required for each fence should be evenly dispersed from one end of the feed trough to the other. This will help every pig have an equal feed. It is more beneficial for timid pigs to catch the trough and cut into the feed from both ends to prevent individual pigs from losing weight.
4. Clean the feeding trough before feeding. Before feeding, be sure to clean up the feces and urine in the feeding trough, and never bring feces to sprinkle. After the pigs are full, clean up the leftovers to prevent pollution and waste of feed.
5. There are many feeding forms of fattening pigs, mainly dilute feed, wet mixed feed and dry feed. Feeding too thin feed will weaken chewing function, dilute digestive juice, and also affect the feed intake and weight gain of pigs. It is easy to have a "straw bag belly" and reduce the meat yield; Wet mixing is to wet the mixture with 1 times ~ 1.2 times of water, and it is appropriate to let the material seep, which is beneficial to the swallowing of food and can quickly complete the feeding work; Raw dry materials can prolong the chewing time of food in the mouth, make food fully mixed with digestive juice, and help to improve the meat yield of fattening pigs, which is very popular in the pig market.
6. Come on in time. Feed for fattening pigs is divided into piglet feed, which is fed before 30 kg; The medium pig feed is 30 kg ~ 60 kg, and the large pig feed is 60 kg until the slaughter stage. Changing feed on time can not only meet the needs of fat pigs at different stages, but also reduce feed costs.