Feed
1. Reasonable use of feed additives . In recent years, research on feed additives has been progressing and is increasingly showing its importance. Adding some amino acids, vitamins, minerals, and deworming health care drugs to the basic diet can not only improve the full price of the diet, but also have obvious effects on reducing diseases, promoting growth and development, and improving feed utilization. .
2. Guarantee protein feed supply . Protein feed is an indispensable nutrient for the growth and development of livestock and poultry. For monogastric animals, methionine and lysine are indispensable raw materials for the production of compound feed.
3. Implement scientific limited feeding techniques . This method is based on different growth stages and different production of livestock and poultry. By adopting methods of increasing or decreasing feed or changing feeding time, the livestock and poultry can reach the expected weight requirements to ensure the high yield performance of livestock and poultry.
4. Do a good job in the storage management of feed . Poor storage of feed, prone to moisture and mildew or insects, feed moldy feed value is not only reduced, but also prone to poisoning, resulting in sick or dead animals. The feed is stored for a long time. Although it is not mildewed, the nutrients are reduced due to the deterioration of fat. Among them, vitamins A, D and E are also easily degraded by oxidation. Therefore, the purchase of feed should not be too much, the purchased feed should also be protected from light, ventilation, and moisture, so as not to cause mold loss. Breeding
Breeding
1. Appropriate amount of feed. At present, in the production, the problem that is more easily overlooked is to pay attention only to the nutrient level in each kilogram of feed, and not to pay attention to the daily feed amount of the feed. Although the breeder can formulate the feed in strict accordance with the nutritional level required by the pig, the daily feed can not meet or exceed the nutrients needed for its growth and development, or extend the feeding period and reduce the feed utilization rate; or cause the pig to overeat and cause indigestion. Causes waste of feed. To this end, while scientific ingredients, we must pay attention to the scientific feeding of feed to fully improve the utilization of feed. Generally, the amount of concentrate fed to the fattening pig is about 4% of the body weight of the pig, and the body weight of the lean pig can be fed at 3.5% of the body weight after 60 kg. It can also be determined according to the expected daily gain and the expected utilization rate of the feed, ie daily gain (kg) × feed utilization (feed / weight gain) = daily feed (kg).
2. Moderate feeding. According to the growth and development rules of slow growth, medium-term growth and slow growth in the early stage of pigs, in order to obtain a higher feed rate, straight-line fattening should be adopted to shorten the feeding cycle and save feed. At the same time, it is necessary to carry out the combination of fine, green and coarse feed, and carry out the mixing and feeding; in the feeding times, adopt the two-day feeding system to reduce the energy consumption and feed dispersal caused by the multiple feeding stimulation of pig movement. Loss.
3. Suitable temperature. Keep the house clean and dry, cool in winter and cool in summer, and create a suitable growth environment for pigs to reduce the incidence of disease, reduce consumption and improve feed utilization. The temperature of the pig house is preferably 17 ° C ~ 21 ° C.
4. Appropriate epidemic prevention. It is necessary to do a good job in the prevention and treatment of diseases and deworming, and to minimize the incidence. In production, a considerable number of pigs each year suffer from hidden waste of feed due to chronic diseases and parasitic diseases. To this end, we must do a good job of immunization and regular deworming to ensure the healthy growth of pigs.
5, timely slaughter. Pigs have different growth strengths of bones, lean meat and fat at different stages of growth. In the early stage of growth (before 60 kg), bones and lean meat grow faster and feed utilization is high; with the increase of age and weight, fat grows more than lean meat, and the feed required for 1 kg of fat is thinner than 1 kg long. The meat is more than twice as high. Therefore, the longer the feeding cycle and the heavier the body weight, the lower the feed utilization rate. Generally, the suitable slaughter weight of hybrid pigs is 90-100 kg; the cultivated variety of soil is about 85 kg, and the cultivated degree is low and the uncultivated variety is about 75 kg.
Select
Choose a good variety. The higher the productivity of the livestock using the heterosis, the less the consumption and the lower the cost. In recent years, the cultivation and introduction of improved varieties have been very effective in saving feed and improving feed utilization. For example, in the case of a decrease in the number of dairy cows in the world, the amount of milk that can be produced has increased. The advantage of hybridization is another effective method for saving feed. Generally, a hybrid pig can increase the daily gain by 10% to 30% and save about 10% to 15% of the feed.
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