Seeking the breeding technique of wild boar

(agricultural Wealth Network) seeking wild boar breeding technology-- Nutrition and feeding management of wild boar Special wild boar is a new breed that is sustainable and popular in the breeding industry. It mainly eats green fodder such as grass, corn stalk, sweet potato and so on, the cost is extremely low, only 1/3 of the domestic pig, and the meat quality is especially fresh and tender, the lean meat rate is as high as 85%, it is the real reassuring meat and green nourishing food, and it is the first choice for investors. Through the technical experience in the process of raising wild boar in our Tianyan breeding company for many years. First, the management of born wild boars: the goal of feeding and management is to improve the survival rate and weaning litter weight of suckling piglets. (-) physiological characteristics of suckling piglets 1, digestive organs are underdeveloped, small volume, digestive function is not perfect, can only use nutrients with very high digestibility: 2, poor body temperature regulation, so do a good job of heat preservation. The suitable temperature for piglets is 30-32 degrees at the age of 1-3 days, 28-30 degrees at the age of 4-10 days, 26-28 degrees at the age of 11-30 days. The born wild boar should cut its teeth and inject 0.5 ml of Qingda and then let it breast-feed, in order to prevent the diarrhea of suckling pigs. 4. the addition of pellet feed to suckling pigs after the full week is mainly to promote the gastrointestinal development of piglets, relieve the itching of piglets' gums and reduce the stress after weaning. Sprinkle a little suckling pig pellet on the clean plank and add it less frequently. 5. Artificial early weaning. However, wild boar has underdeveloped mammary gland, small lactation and short lactation time, such as early weaning can easily lead to small piglets, weak physique, poor adaptability to the environment and poor gastrointestinal function, and prone to diseases. In order to make early breeding and early listing of piglets, artificial weaning was made. Wild boar piglets should be weaned for 45 days. Because the wild boar has underdeveloped mammary gland, small lactation and short lactation time, such as early weaning, it is easy to lead to small piglets, weak physique and adaptability to the environment. (2) the immune program of suckling pigs is 1.7-15 days old; there is no live vaccine for asthma by intramuscular injection, and the attenuated vaccine against blue ear disease. At the age of 2.20 days, the combined vaccine of classical swine fever, swine erysipelas and swine swine epidemic were injected intramuscularly. 3.25-30 days old; intramuscular injection of pseudorabies vaccine. 4.30 days old; intramuscular injection of infectious rhinitis vaccine. 5.60 days old; triple vaccine of classical swine fever, swine erysipelas and porcine lung disease. -- (3) the ratio of feed technology to wild boars is naturally resistant to coarse food, likes to eat grass, green vegetables, etc., green feed accounts for 70%, eating less. Special wild boar has less food, generally fed twice a day, like raw food, eating miscellaneous, a variety of weeds, vegetable leaves, plant roots, crop straw and so on can be used as wild boar feed. Wild boars especially like to eat green feed, which can account for more than 60% of the diet, and a strong wild boar can be raised with a small amount of concentrate. Here are some kinds of feed for wild boar. Green fodder: commonly used are alfalfa, celery root, amaranth, sweet potato vine leaves, corn stalks and so on. Green fodder has high crude protein content, high digestibility, rich amino acids and vitamins, good quality and high utilization rate. 2. root tuber, tuber and melon and fruit feed, including sweet potato, potato, pumpkin, carrot and so on. This kind of feed is crisp, tender and succulent, which can stimulate appetite and high digestibility of organic matter, which plays an important role in improving the nutritional composition and digestibility of diet. However, it should not be fed alone, it must be used with coarse feed and concentrate, and then supplemented with protein feed in order to achieve the feeding effect. three. Concentrate feed generally consists of corn, sorghum, barley, rice, sweet potato and other cereal seeds and other energy feed. The content of crude protein is low, only 7%-11%. Due to the imbalance of nutritional structure, it is not suitable to be used as the feed of wild boar alone. It must be matched with protein feed and nutrient additives to make the diet nutritionally comprehensive and balanced. Such as bean cake, peanut cake, cottonseed cake, bone and meat meal, fish meal and other protein feed, as well as some vitamins, amino acids, minerals and trace elements and other nutrients additives, fish meal is the most widely used animal feed, protein content is 40% 60%, especially useful in the supply of methionine and lysine, high nutritional value Bone and meat meal, blood meal and silkworm pupa are also good animal protein feeds, which can be mixed as ingredients of compound feed according to needs and conditions. -- 1. Weaned suckling pig corn meal 41%, wheat bran 10%, peanut bran 10%, fish meal 3%, crude bran 20%, shell powder 2%, growth promoter 1% trace elements 0.5%, salt 0.5%, soybean meal 12%, multi-dimensional 20 grams. 2. Medium wild boar corn meal: 22%, wheat bran: 30%, soybean dregs or a little soybean: 5%, Panax notoginseng bran: 22%, green feed: 20%, amino acid (per head per day): 15: 40 grams, iodized salt: 0.5%, bone meal: 0.5%. -- (4) serious epidemic prevention many farmers do not attach importance to the use of vaccines or copy them mechanically, and their use is not standard and unscientific. Scientific immunization should be based on the local epidemic situation and the formulation of a complete set of immunization procedures, do not pay attention to pig house hygiene and environmental disinfection. Wild boar has more excreta, which is easy to cause the reproduction of bacteria and pathogenic microorganisms. if the wild boar house can be kept hygienic, the reproduction of pathogenic microorganisms can be minimized and the spread of disease can be eliminated. However, at present, most of the farms have poor hygiene, cross-flow of sewage, stench, mosquitoes and flies, which can easily cause the epidemic and outbreak of diseases and affect the efficiency of breeding. Although wild boar has better disease resistance and virulence than domestic pig, there are still many basic knowledge to be mastered. In breeding, we should pay attention to technical learning, and timely observe the mental state of wild boar, the amount of feed, the amount of drinking water, activities, the changes of urine and urine, so that the problems can not be solved in time. Due to the differences in technology and management, there are many differences in reproduction rate, survival rate, growth rate and economic benefits. In addition, the concept of health and epidemic prevention of some farmers is weak, the farm is free to allow idle people to visit, and rarely take disinfection measures. In fact, disinfection is the simplest, most effective and fundamental measure to prevent the occurrence of diseases. Pigs have more excreta, which is easy to cause the reproduction of bacteria and pathogenic microorganisms, poor hygiene in farms, cross-flow of sewage, stench, mosquitoes and flies. It is very easy to cause the epidemic and outbreak of diseases and affect the efficiency of breeding. -- (5) emphasis on technical learning and technical training although wild boars have better disease resistance and virulence than domestic pigs, they still have a lot of basic knowledge to master. Some farmers do not receive professional training when introducing species, which leads to the above problems in the process of breeding. Can not timely observe the mental state of wild boar, feed quantity, drinking water, activity, urine and urine changes, so that the problems can not be solved in time. Due to the differences in technology and management, there are many differences in reproduction rate, survival rate, growth rate and economic benefits. Second, the estrus and breeding of wild boar the coat of wild boar is thick and thin, usually gray or grayish yellow. Adult sows weigh 90 kg-130 kg and are sensitive to the external environment. There are generally 6 ~ 7 pairs of wild boar nipples, with an annual production of 2.5 babies, usually 10 ~ 15 per fetus. The suitable mating time is from 5 months to 6 months after birth, and the body weight is 40 kg ~ 60 kg. When sows are in estrus, they generally adopt the principle of early mating of first-parturient sows and late mating of parturient sows. When the wild boar is in estrus, the external genitals are obviously red and swollen, and when the external genitals change from red to dark purple, from swelling to slight wrinkle, or when the hands press the buttocks of the sow, and the sow stands still, it is the best time to breed. During breeding, the mating time of male and female wild boars is about milk minutes, which is slightly longer than that of domestic pigs. According to experience, it is best to adopt multiple mating, that is, mating again after an interval of 6 to 8 hours. This can significantly improve the conception string of sows. When the female wild boar is in estrus and suitable for mating, it can also be used to drive the boar into the sow pen for 1-2 days, when the boar can climb and mate many times at night. After confirming the success of mating, drive out the boar. After 20 days, observe whether the wild boar is still in estrus. Generally, the oestrus cycle of the wild boar is 18 days. If not, it proves that the wild boar has mated successfully. -- third, the farms and households that breeding pigs choose to engage in wild boar breeding must have one or two purebred wild boars. As the saying goes: good sow, good litter; good boar, good slope. This shows the importance of breeding boars. The selection of a good wild boar for breeding is of vital significance to the pros and cons of future generations. Purebred wild boars, such as length, leg height and mouth tip, which accord with the characteristics of wild boar, are generally selected as breeding pigs. The offspring of the special wild boar crossbred with wild boar and domestic pig have the phenomenon of atavism, that is, some of the pigs produced are not like wild boar but like domestic pig. Therefore, the special wild boar of binary hybrid should not be reserved for breeding. If restricted by conditions, when not using special wild boars as breeding boars, three-way hybrid special wild boars with more than 70% of wild boar consanguinity should also be selected as breeding pigs, and inbreeding should also be prevented in terms of blood relationship, so that their offspring have strong disease resistance and grow rapidly.