Where does Hanzhong white pig have special products?

Hanzhong white pig is a geographical indication product of agricultural products.

Hanzhong white pig is produced in Hanzhong area of Shaanxi Province. Hanzhong basin is located in the north subtropical zone, with warm climate, abundant rainfall, fertile soil and developed agriculture. The main crops are rice, wheat, corn, sweet potato, rape and so on. Rich in agricultural and sideline products, planting green feed all the year round provides good feed conditions for breeding Baihan pigs.

geographical distribution

Hanzhong White Pig, referred to as Baihan Pig for short, is mainly distributed in Hanzhong, Hanzhong, Mianxian, Nanzheng, Chenggu, Yangxian, Xixiang, Ningqiang, Zhenba, Liuba and other cities and counties.

varietal characteristic

Hanzhong white pig has a strong constitution and well-proportioned structure. The head is of moderate length, the face is slightly concave, and the ears are of medium size, extending upward and outward. The back and waist are straight, and the legs and hips are moderately plump. Strong limbs. This coat is all white. More than 0 12 pieces are valid. It's both fat and meat.

Variety show

Hanzhong white pig adult boar weighs 213.29 2.88kg, body length 155.4 1 8.9cm, chest circumference/kloc-0 146.20±6.9cm, and adult sow166.82 28.4. After long-term cultivation, Hanzhong white pig has the characteristics of strong adaptability, fast growth and good carcass quality. But the legs and hips are not plump enough, the lean meat rate is not high enough, and the system is weak.

territorial scope

The origin of Hanzhong White Pig includes eleven counties and districts in Hanzhong City, Shaanxi Province and 234 townships under its jurisdiction. East longitude105 30 ′-108 24 ′, north latitude 3215 33 ′-56 ′. The average elevation of the mountain area is 2000 meters, and the average elevation of the basin is 500 meters. Located in the geographical center of Chinese territory, it is connected with Guanzhong in the north, Sichuan and Chongqing in the south, Gan Long in the west and Jingxiang in the east, and is known as "Little Jiangnan in the Northwest". The total production scale is 3001.1.6 million head.

Natural ecological environment and human and historical factors

(1) Soil landform: Hanzhong is located in the southwest of Shaanxi, surrounded by mountains, with high terrain in the north and low terrain in the south, Qinling Mountains in the north, Bashan Mountain in the south and valley plain in the upper reaches of the Han River in the middle. There are more than ten basins and flat dams in Hanjiang River Basin. Mountainous areas above 3000m above sea level account for 1.8 1% of the city's total area, while Zhongshan mountain areas at 3000- 1200m account for 56.0 1%, low hills account for 35.84% and plains account for 6.34%. The soil types are fluvo-aquic soil, silt soil, paddy soil, yellow brown soil, brown soil and dark brown soil, with pH value of 6.5, neutral acidity, fertile soil and developed agriculture and animal husbandry.

(2) Hydrological situation: Hanzhong is known as the "Small South of the Yangtze River", which is characterized by numerous rivers and abundant water. There are two major water systems in the city: Hanjiang River and Jialing River, with a drainage area of 2707 1 km2. The average surface water resources for many years are 65.438+044 billion cubic meters, and the groundwater resources are 36.5438+75 billion cubic meters, with excellent water quality.

(3) Climate: Hanzhong City is located between Qinling and Bashan, at the intersection of north and south climate in China, and belongs to Qinba climate zone in the humid monsoon climate zone in the north subtropical zone. The climate in China is mild, with an extreme maximum temperature of 35℃, an extreme minimum temperature of -5℃ and an annual average temperature of 65438 04.3℃. The average humidity is 77%; There are 260 days left in the frost-free period.

Right; Average annual sunshine 1700- 1800 hours; The annual average precipitation is 800-900mm, with abundant rainfall and abundant vegetation; Average wind speed1-2m/s. The climate difference is small, with no severe cold in winter, no intense heat in summer and humid climate.

(4) Human history: the forest coverage rate of the whole city is 5 1.2%, and the vegetation coverage rate is 56%; Cultivated land is 250,700 hectares, accounting for 9.2% of the total area. Among the cultivated land, paddy field 1 10000 hectares, dry land 147000 hectares, paddy field and irrigated land account for 45. 1% of the total cultivated land. 6667 hectares of improved grassland and artificial grassland 1333 hectares. Hanzhong basin is rich in rice, corn, rape and potato, with a perennial planting area of more than 300,000 hectares and a green fodder planting area of 1.600 hectares. Agricultural and sideline products and forage resources are extremely rich. It is an important pig production base in Shaanxi Province, and its annual output accounts for 19.6% of the whole province. Superior feed resources have laid a good material foundation for the formation of Hanzhong white pig. The local people have the habit of making bacon, which also promotes people's breeding, thus cultivating a good local breed-Hanzhong White Pig, with thin skin and tender meat, good flavor and moderate lean meat rate.

Production technical requirements

(1) Selection of producing area and special contents: The breeding base must be selected in a producing area with good ecological environment and no or no industrial "three wastes" and direct pollution from agricultural, urban life and medical wastes. With reference to the provisions of relevant national standards, avoid water source protection areas, scenic spots, densely populated areas and other environmentally sensitive areas, meet the requirements of environmental protection and veterinary epidemic prevention, have a reasonable site layout, and strictly separate the production area from the living area. Areas with high incidence of endemic diseases related to water sources cannot be chosen as places for pig production and product processing. Special storage equipment and places with certain capacity should be set up to prevent leakage, runoff and flying, and sewage treatment facilities should be equipped. The discharge of feces, sick pigs and their products and production wastewater should be properly treated.

Meet the requirements stipulated by the state. Implement ecological farming and standardized production.

(2) Variety selection and specific requirements: Take Baihan pig as female parent, Duroc, Landrace, Yorkshire and other lean pigs as terminal male parents, and combine conventional breeding with modern biotechnology. Promote Hanzhong white pig purebred sows, binary hybrid sows and ternary hybrid commercial fattening pigs. Among the binary cross combinations, Chang× Han is the best, Du× Han is the second, and about× Han; Among the three cross combinations, Du (Chang× Han) is the best, followed by Du (about× Han) and Long (Du× Han) groups.

(3) Production process management, including provisions on the special use of agricultural inputs: it must be imported from breeding farms that have obtained the Production and Operation License for Breeding Livestock and Poultry issued by provincial animal husbandry authorities.

Vehicles and feeding utensils must be cleaned, washed and disinfected during transportation. Imported breeding pigs must be observed in isolation for 15-30 days, and can only be used for breeding production after being confirmed to be healthy and disease-free. According to gender, age, weight and different physiological production stages, we should implement group management and feed in stages, feed compound feed with balanced nutrition and meet the nutritional needs of each production stage, and ensure its full production potential. Feed additives and drugs prohibited by the state shall not be added to the feed. According to the characteristics of pig breed, production performance and production scale, the breeding rhythm is determined, and commercial pig production is carried out continuously, evenly and completely. During the conservation period, do a good job in raising piglets in the prosperous period to promote their growth and development. Newborn piglets should be vaccinated and supplemented with iron and selenium. Commercial pigs should be scientifically raised and managed, and attention should be paid to heatstroke prevention and cooling, cold protection and warmth.

(4) Provisions on product harvesting, slaughtering, fishing and post-natal treatment: the market weight of commercial pigs is 90kg, and the carcass lean meat rate is above 56%; The use of feed pharmaceutical additives and veterinary drugs must be carried out in accordance with the relevant provisions of the state; Carry out meat quality related work such as halothane gene determination in breeding pigs, and eliminate unqualified breeding pigs in time. Choose high-quality feed to prevent yellow fat. To prevent white muscle, pay attention to adding vitamin E and selenium to feed. Pig slaughter according to the "pig slaughtering operation procedures" and "livestock slaughter

Hygienic and Quarantine Standards for Poultry Slaughtering, and the hygienic requirements during slaughtering and processing shall be implemented according to Hygienic Standards for Meat Processing Plants.

(5) Requirements for production records: According to the Measures for the Administration of Livestock and Poultry Labels and Breeding Files of the Ministry of Agriculture, pig farms should establish breeding files, which should include the following contents: the variety, quantity, breeding records, labels, sources and import and export dates of pigs; Sources, names, users, time and dosage of inputs such as feed, feed additives and veterinary drugs; Quarantine, immunization, monitoring and disinfection; The incidence, diagnosis and treatment, death and harmless treatment of pigs; Rules for raising pigs.

Typical product quality characteristics and product quality and safety regulations

(1) External sensory characteristics: Hanzhong White Pig is of medium build, strong constitution and well-proportioned structure. The coat color is all white, the head is of medium size, the ears are of medium size, the body is of medium length, the back and waist are straight, and the legs and arms are moderately plump.

(2) Internal quality indicators: lean meat rate is 55%-65%, skin is thin and tender, flavor is good, meat color is normal, and marble lines are properly distributed. The pH value is 6. 17, and the water retention capacity is 85%.

(3) Safety requirements: Hanzhong white pig production should follow the norms and standards.

NY5029 pollution-free food pork;

NY5027 Water quality of pollution-free food and drinking water for livestock and poultry;

NY5030 Guidelines for the Use of Veterinary Drugs for Pollution-free Food, Livestock and Poultry Breeding;

NY5032 Guidelines for the use of pollution-free food, livestock feed and feed additives;

GB 16548 Code for Harmless Treatment of Livestock and Poultry Diseases and Their Products.

NY5033 Guidelines for the Management of Pollution-free Food for Pig Raising;

NY/T5339 Guidelines for Veterinary Epidemic Prevention of Pollution-free Food, Livestock and Poultry Breeding;

Packaging identification and other relevant regulations.

The lean meat rate of Hanzhong white pig carcass is higher than the average level (55%-65%), which is divided into Grade I 58%-65% and Grade II.

55%-57%。 The packaging is marked with the words "Hanzhong White Pig" geographical indication of agricultural products. The packaging of finished meat is 25Kg/ box and 10Kg/ box. Storage, transportation, etc. Store, transport and sell with refrigeration equipment according to regulations.