A course in Pig raising Technology

Selection of fine breeds: selecting seedlings should be a healthy pig breed with big, high feet, uniform physique and no red spots on the body. Feeding excellent feed: In order to meet the sufficient and comprehensive nutrition of pigs in the growth process, it is necessary to reasonably match feed. Reasonable design of pigsty: change human and animal cohabitation into human and animal separation, pigsty also needs reasonable design. Improved feeding methods: change cooked feed to live feed, change dilute feed to dry and wet feed, change single feed to mixed feed, change random feed to regular quantitative feed.

1. Select fine varieties

China's geographical, geographical and climatic conditions are quite different, pig local breeds are also more, according to meat classification, can be divided into lean type, fat type and meat and fat type pigs. Select seedlings should be selected from pigs with uniform physique, no red spots on the body, large, high feet, normal intake, and no fever by touching the ears with hands.

1, lean type: introduced from abroad high-quality varieties, lean meat accounts for about 60-65%, such as large white pigs, Duroc pigs and Landrace pigs.

2. Fat pigs: local breeds in China, lean meat accounts for 35-45%, such as Neijiang pigs, Liangguang Xiaohua pigs, Yunnan small-ear pigs, Quanhua pigs, etc.

3. Meat and fat pigs: imported improved pigs as male parents and local improved pigs as female parents for hybridization, that is, hybrid pigs. This breed has more lean meat, faster growth, stronger disease resistance and higher feed utilization rate.

II. Feeding fine feed

The nutrients pigs need to grow, reproduce and sustain themselves can be divided into six categories: fat, minerals, vitamins, water, carbohydrates and protein.

The nutrition of feed depends on the crude protein content contained in the feed, and the protein content of the feed for fattening pigs needs to be about 14-18%. The nutrients needed by pigs can basically be obtained from feed, except water. Feed can be divided into energy feed and protein feed, that is, the crude protein contained in feed is more than 20% protein feed, and the energy feed is less than 20%.

1, protein feed: fish meal, silkworm chrysalis, soybeans, peanut cake, soybean meal, blood meal and so on.

2. Energy feeds include corn, cassava, wheat and rice bran.

3. Reasonable design of pigsty

1, pigsty should be selected in the leeward sunny, better ventilation, convenient drainage defecation, higher terrain, pigpen can be designed according to each pig covers an area of 1.2 square meters, the length of the trough according to each head of about 40 cm design, in order to facilitate washing and cleaning, can be flat according to the defecation side low, other triangle to maintain appropriate slope for paving.

2, in order to avoid the occurrence of some diseases, can be changed into human and livestock cohabitation, pig pen, toilet, pig manure water and methane combined into a sanitary circle.

IV. Improving feeding methods

1, change cooked feed for life feed

Cooked feeding: usually after the feed is cooked for feeding, feed cooked at high temperature in the process, will lead to some nutrients are destroyed, especially the loss of a large number of vitamins, such as improper cooking, may cause pig poisoning, serious can also lead to death.

Raw feeding: nutrients will not be lost, but also save manpower and material resources, to avoid smoke nitrate poisoning.

2. Change dilute feeding to dry and wet feeding

Dry feed: easier to cause pharyngitis, so that pigs choke nose, because dry feed needs more saliva and gastric juice soaked.

Dry and wet feeding: and porridge almost the same concentration, gastric juice can play a better decomposition role, conducive to promoting the digestion and absorption of feed, so that pigs grow faster.

Dilute feeding: too much water dilutes gastric juice, increases the burden on internal organs, excretes quickly and in a large amount, which is not conducive to the digestion and absorption of feed, and there is too much water for nutrition, and the feeding amount will not be handled. This is the reason why pigs are full but not long.

3. Change feeding single feed to feeding mixed feed

Single feeding: feeding with only one feed, resulting in malnutrition, low feed utilization, thus affecting pig growth.

Mixed feeding: a variety of feeds for scientific proportion, and then mixed feeding, not only nutrition balance, feed utilization rate is also high, but also conducive to the rapid growth of pigs, thus improving breeding income.

4. Change random feeding to regular quantitative feeding

According to the weight of pigs to regular quantitative feeding, pigs in more than 60 jin, can be fed according to 5% of the weight, medium pigs between 60-120 jin need to be fed according to 4% of the weight, large pigs can be fed according to 3% of the weight, so as to ensure nutritional needs, but also will not waste feeding, more conducive to the rapid growth of pigs.

V. Timely listing

Pigs can be sold or slaughtered when they weigh about 90-110 kg. They must be sold at the right time so as not to affect economic returns.