2. Reasonable processing and modulation: Different residues should be processed and modulated by different methods to eliminate their anti-nutritional factors. For example, bean curd residue and mung bean powder residue should be cooked and fed, because heating and ripening can destroy antitrypsin and improve digestion and absorption rate. Fresh feed and raw feed are better for brewer's grains, because the fresher the raw feed, the more complete the nutrition, the higher the nutritional value and digestive utilization rate, and the better the feeding effect. For corn meal residue, it can be fed fresh or dry. If it is not completely fed temporarily, it can be stored anaerobically. The crude protein content of sweet potato residue is low. It can be eaten after biological fermentation.
3. Feeding according to the growth and development stages of pigs: Because of the low energy value and high crude fiber content of waste residue feed, the digestive function of pigs at different growth and development stages is very different. Generally, the digestive function of piglets (15-30 kg) is not perfect, and the amount of dregs added is 20%-25%, and that of big pigs (60-90 kg) is about 30%. Adult pigs can be properly fed more, but there must be a certain limit, the highest is not more than 50%. In addition, it should be noted that distiller's grains, soy sauce distiller's grains and vinegar distiller's grains cannot be fed to pregnant sows and piglets.
Fourth, it is necessary to gradually transition: because the waste residue feed has poor palatability, and some of them have special smell, pigs are unwilling to eat it at first, so they should adopt the method of gradually increasing from less to more, and then feed the pigs according to the standard ratio after the pigs adapt.
5. Do a good job in health and epidemic prevention: In order to improve the benefit of pig raising with waste residue feed, we must do a good job in health and epidemic prevention. Houses should be kept clean and dry, regularly deworming and vaccination. Proper application of oxytetracycline, olaquindox and other antibacterial growth promoters and addition of necessary trace elements and vitamins can not only promote the growth and development of pigs, but also reduce the occurrence of epidemic diseases.
The first answer is to insist on raising hybrid pigs. The first generation of hybrid pigs has strong vitality, fast growth and good feeding effect.
It is necessary to popularize the new technology of "three-in-one" of hybrid generation of improved boar, localized sow and piglet.
The second is to insist on feeding compound feed. According to the nutritional needs of pigs at different growth stages, adhere to the whole formula feeding.
Feed, its nutrition is comprehensive and not wasted, and the price of feed and meat is low.
The third is to carry out protective feeding. Plant gourd, big melon, nest melon and sunflower in summer and autumn. Outside the pigsty.
Vines can shade and cool down, promote plastic greenhouse feeding technology in winter, and do insect repellent and immunization work regularly.
The fourth is to change hanger fattening into linear fattening. Traditional rack fattening is to divide the fattening period of pigs into several parts.
Stage, according to different stages, the combination of fine and coarse fattening is adopted. This method has single feed and incomplete nutrition.
Can not meet the growth needs of pigs, pigs grow slowly, the feeding cycle is long and the slaughter rate is low. If you are very young after weaning
Using linear fattening method to improve the nutritional level of fat pigs before reaching the hurdle can effectively shorten the fattening period and improve the fattening cycle.
Rate, improve economic efficiency.
The fifth answer is to supply enough water. Lack of water will affect the appetite, digestion and normal growth of pigs, thus reducing the impact on
Feed utilization rate.
Sixth, a large number of auxiliary feeds are used. The treated brewer's grains, chicken manure and rabbit manure are mixed with the mixed feed.
Feeding pigs together, love to eat and gain weight, gain weight quickly and slaughter early, which can reduce the cost of raising pigs 1-3%.
Seventh, it is self-supporting. Raise excellent boars and sows by yourself, raise hybrid piglets by yourself and raise them by yourself.
Commercial pigs are beneficial to epidemic prevention, improving the survival rate of piglets and reducing costs.
Eight is to promote high-density breeding pigs. 1 fattening pigs are raised in a pigsty of 0.8 m2 in winter and 1 m2 in summer.
There are 1 fattening pigs in the pigsty. High-density breeding pigs not only have few laps and low cost, but also fatten pigs compete for food.
Sleep without a sports ground, love to gain weight quickly and reduce feeding expenses.
The ninth answer is to ask technology for benefits. Carry out the one-stop rapid pig raising method. Implement "five changes and one plus": one change is fattening.
Type B pigs are lean pigs such as Landrace, Yorkshire and Duroc. Second, a single feed was changed to a complete feed.
Materials; 3. Feeding "Longevity Pig" and adding auxin; Fourthly, the cooked feed is changed into raw material wet feed;
Fifth, a veterinarian should be invited for disease-free early epidemic prevention, and the four major epidemics of swine fever, swine erysipelas, pig lung disease and paratyphoid fever should be strictly controlled.
Infection, reduce mortality, improve survival rate and slaughter rate.
Ten is timely slaughter. After finishing pigs exceed 90 kg, the daily weight gain rate slows down obviously, and
Mainly fat deposition, so the more you feed it, the less cost-effective, the more fat it is, and it is not easy to sell; Slaughter less than 90 kilograms,
Although the feed utilization rate is high, it is uneconomical because of its small weight and low meat production rate. The average finishing pig is 90 ~ 120 kg.
Slaughtering is the most suitable.