Selection and Cultivation of Reserve Pigs
With the booming development of the swine industry, various types of investors have turned their attention to the pig raising industry; therefore, specialized pig farmers and pig farms have increased year by year. No matter what kind of investment, the benefits are always fundamental. However, the quality of reserve groups directly affects the potential for pig production, which in turn affects pig production efficiency. This point is often overlooked in many pig farms. If the annual replacement rate of production sows is calculated at 30% to 45%, the number of restocking columns for reserve groups is very large. Therefore, scientific and standard reserve pig selection and cultivation are farm operations. The key link.
The selection of reserve varieties The outsourcing of reserve breeding pigs should consider the following points; first, select the breeding company with good health status and reputation as the breeding company; secondly, select the species and quantity suitable for your own requirements. Detailed selection criteria are as follows:
Reserve boar selection: focus on lean meat, carcass quality, limb and hoof, growth rate, feed rewards and other indicators, the specific choice of boar points: body appearance conforms to breed characteristics, testicular development, and symmetry (the size of the gap does not exceed 10 %), Strong and strong limbs, Strong pace, Clear pedigree, Comprehensive selection index over 100, etc.
Selection of gilts: reproductive ability, lactation force, etc. Specific selection points: Variety selection: Maternal pigs with multiple litter size and good milking performance. The appearance conforms to the breed characteristics, the physique is strong, the vulva develops well, and the effective nipples are more than 6 pairs. Individuals with individual measurements are above average, and individuals with high index are selected.
Basic knowledge after the introduction of reserve breeding pigs
After the introduction of isolation and feeding:
1. After the unloading pigs and the positioning pig transporter enter the site, pigs are sterilized with a small irritant disinfectant. Lighter when unloading pigs. After unloading pigs, reasonable grouping should be based on body weight, breed, sex, etc. to minimize the rearing density.
Faced with the new environment, pigs need to be repositioned to eat, drink, pull and sleep. Positioning method: All-day special care, gradually establish a new lifestyle after 3 days.
2. Isolation and rearing
1) New breeding pigs should be placed in a quarantined quarantine pighouse. They should not be contacted by the pigs for the time being, generally 30-45 days.
2) Hand-feeding to avoid cross-infection.
3) Frail, diseased, and fighting pigs should be isolated and given special care during the breeding process.
4) After the pigs are unloaded, the pigs should be fully rested and free drinking water should be added. After 12 hours, feeding was started, and the amount of feed was normal 1/3. It gradually returned to normal within 3-5 days.
3. Health care and disinfection
1) For the newly introduced breeding pigs, the feed used should be supplemented with appropriate amounts of antibiotics and electrolysis, and used for 5-7 days.
2) Adhere to the standard disinfection of the newly introduced breeding pigs, which generally include vehicle disinfection and daily disinfection when entering the farm. (With pigs, disinfection generally uses small, non-corrosive, non-corrosive disinfectants, such as chlorine preparations, 100 toxins, 1210, Verbo, Iodine preparations, etc.). Disinfect continuously for 2 weeks. After the use of a variety of disinfectant rotation, disinfection 3 times a week.
3) Deworming of newly introduced pigs after vaccination. Usually avermectin powder spices feed 1 week.
Nutrition standard and feed formula for reserve pigs
The rearing of breeding pigs is very important, especially for high-yielding, fast-growing French pigs. The reserve sow energy is generally between the finishing pigs and the pre-pregnant materials, and special back-up pig stock is to be prepared; The method is generally free in the early stage of feeding, and is properly limited in the later period (the feed intake is more than 80% of normal). This is conducive to estrus breeding.
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