First, the importance of gilts
The gilt is the basis for the production of the pig farm and will directly influence the entire pig production level. Therefore, the selection and management of gilts is the key first step in pig production. Only the gilts are selected and managed well. Only in order to produce a good offspring, can lay a solid foundation for the benefits of the farm.
Second, the demand for gilts and the introduction of places
1. Demand for gilts: On the one hand, some novices join the swine army. The introduction of gilts is an indispensable step in starting a pig; the other is the normal sow that is now in the production field. , also need to introduce gilts to supplement and increase the number of herds in stock.
2. Introduced sites: To select regular large-scale breeding farms or companies that can provide healthy, disease-free, and high-quality breeding pigs for introduction, and require “specialized animal husbandry and animal husbandry licenses†and “animal epidemic prevention certificateâ€. Breeding pig health certificate, but also can not be the epidemic area in the disease, and finally we must understand the reputation of the introduction of pig farms and after-sales service, etc., to be aware of.
Third, the details of the selection of gilts
1, the shape of the binary gilt selection: we go to the breeding farm, people can not go directly to the selection, is to the outside of the museum, the breeders will be out according to the weight of your pig out let you pick through the glass, We generally require them to pick 50-60 kilograms of gilts for selection. They are small in weight and have not yet been developed. The estimated size of the body is the surplus of others (excluding their own schedule). The sows that we generally want to pick should have well-developed, well-arranged, well-proportioned, well-distributed left and right spaces. The number of effective nipples should not be less than six pairs. There should be no dummy nipples, nipples, or nipples, and the hips should be wide, flat, long, and slightly. Tilt; pussy well-developed, normal appearance, large and obvious.
2. Pedigree inspection: Select a sow that has complete pedigree and performance records, conforms to the appearance characteristics of this species, has clear ear numbers, clear pedigree, complete file records, and Class I or II communicable diseases without national regulations. Selected pigs must be tested for the absence of swine fever and chronic atrophic rhinitis.
3. Production performance and carcass performance: Parents of gilts should have strong production capacity, fast growth rate, good stress resistance, and high feed conversion rate. The litter of piglets had good carcass traits, high uniformity, and small individual differences. The birth weight was more than 1.5 kg, the weaning weight reached 8 kg on the 28th, the weight on the 70th day reached 30 kg, and the sensation was moderate.
IV. Management details of gilts
1. Preparation of the site: Disinfect the shed and empty it for more than one week.
2, transport and sub-circle: pay attention to transport stress, come back in the drinking water Riga quality multidimensional, the first day less feed or not feed, and then slowly feed the next day until normal feeding.
3. Isolation and rearing: Generally reserved gilts are kept for 30-45 days in isolation, and there is no abnormal situation and then polyculture.
4, gilt feed: gilts generally use about 140 kg to use professional gilt feed, can not use other feeds, especially fattening pig feed, otherwise easily lead to nutritional deficiencies and delayed estrus or not estrus.
5, the mildew of raw materials: In the feeding process, we must pay attention to the quality of raw materials, especially corn and bran mildew, otherwise it will cause sow mycotoxin poisoning without estrus and even the elimination of the disease.
6. Immunization of vaccine: gilts should be given a number of viral vaccines before mating, such as: swine fever, pseudorabies, small, Japanese encephalitis, and foot-and-mouth disease.
7, Sports: For gilts to ensure a certain amount of exercise, generally a large circle can be arranged around 5 gilts, can protect the effective exercise space.
8, late and not obvious estrus: Now the varieties are good, estrus time delayed, generally about 8 months before estrus mating, and estrus is not obvious, do not pay attention to observation may miss, so remind everyone to pay attention to this detail.
9, light: light on the breeding sow's impact is still relatively large, generally in the early stage of heat to ensure that at least 16 hours of light, this detail we usually pay little attention, we must pay attention.
10. Boar stimulation: gilts generally require boars to be stimulated twice a day for 150 days to 170 days, and once in the morning and afternoon, each time for 10-15 minutes to speed up heat.
11, no heat treatment and elimination: for more than 270 days without primary love, after hormone treatment and no heat, and the disease has no hope of cure, should be eliminated in a timely manner.
to sum up
These are just a few superficial views on the introduction and management of gilts. There may be many places that are not mentioned, but I hope that they can play a role in attracting gilts, which will cause everyone to attach importance to the introduction of gilts and then to pigs. The subsequent development of the field can bring certain benefits. Welcome everyone!
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