Rushan Jinguo Food Co., Ltd , https://www.jinguofood.cn
The fact that sows do not produce estrus or repeat infertility during production is common in the production. Due to the lack of effective treatment methods, some sows cannot be matched in time, which directly affects the economic benefits of pig production and causes certain economic losses. The reason for the lack of estrus in postpartum sows and the countermeasures are as follows: I. Reasons: 1. The age of replacement gilts is too early: In the sows that have just entered puberty, reproductive organs have normal reproductive function. Early mating results in fewer births, lower birth weight, and lower weaning survival. It also influences the sow's own development, and the body weight is obviously lower than that of the unmatched sow of the same age. The postpartum estrus is obviously delayed or not estrus. 2. Improper feeding and management: Lack of dietary nutrients, excess dietary nutrients, no special diets, mildew diets, etc. can all lead to delayed or no estrus. Under normal circumstances, the sow undergoes a lactation period and the body weight will have a normal 20-40 kg drop. Sows with more than a small, large lactation, weight loss, or even more than 50 kg, when dietary nutrition is lacking, often lead to postpartum estrus or estrus delay. Sows have fewer litters and are still fed a large amount of high-energy, high-protein diets, which can lead to large amounts of fat deposits in the sows, leading to fatty infiltration in the ovary, epidermal fatty degeneration of the follicles, follicular atrophy, progression to estrus, or delayed estrus. The rearing households do not use special sow material, or long-term feeding of high-copper, high-zinc feeds, moldy feeds, etc., causes the sow's endocrine system to be disordered, which in turn causes no estrus or delayed estrus. 3. Environmental impacts: In summer, the sows' intake of food is low and their energy intake is low, which leads to obstacles in the function of hormone secretion organs and causes abnormal postpartum estrus in sows. The high concentration of ammonia gas and hydrogen sulfide in the pig house can cause the sow body to be highly stressed and affect its normal estrus. 4, genital diseases: normal estrus in sows but repeatedly with infertility, usually due to sows suffering from endometritis. Sows suffering from infectious diseases such as blue ear disease, parvovirus disease, circovirus disease, and pseudorabies can also cause postpartum reproductive disorders. Second, countermeasures: 1, grasp the correct initial match age: 7-8 months of age, weight 100-110 kg or more, 1-2 estrus gilts can be moved into the breeding pigs, the initial match age must not be earlier than 7 months of age Weight not less than 120 kg. 2. Ensure that dietary nutrition is reasonable: Different growth stages require different nutrient supply. In view of this situation, we produce Jiuding matching products. The specific feeding programs are shown in the table below: Pigs are fed 15-21 days before feeding The pig feed is fully fed 1-3 days after sowing Pregnancy sows feed restriction 1.6-1.8 kg/day/head 4-90 days pregnant sow feed 1.8-2.5 kg/day/head pregnancy 90-100 days nursing mother Pig material 2.3-3.0 kg/day/head Pregnancy 100 - 4 days before childbirth Suckling sow material 2.8-3.5 kg/day/head Prenatal 4 days until farrowing Suckling sow material 2 kg/day/head within one week after delivery Feeding sows for three meals to ensure that there is food in the trough for one week until the weaning lactating sows are allowed to feed freely (3.0 kg + 0.25 kg/lark/day of sows, 2.0 kg + 0.25 kg/day of sows). (Aberdeen/day) Weaning period sows are allowed to feed freely to feed sows and lactating sows. In addition, in order to prevent feed from becoming rotten and spoiled, all pigs should be supplemented with Jiuding mildew 0.5-2 kg/ton. 3, to strengthen the feeding and management: The high temperature season childbirth should pay attention to do a good job of cooling off the work of the summer, the winter should be good insulation and cold measures. Strengthen daily cleaning and disinfection work to kill pathogenic microorganisms. 5, the treatment of the original disease: in accordance with the strict immunization program immunization, and for sows suffering from acute endometriosis, with 6,000 ml of saline repeatedly washed the uterus, and placed in the uterus penicillin 6.4 million IU, streptomycin 3 million international units. Amoxicillin may also be introduced into the uterus after washing. 6, Chinese medicine treatment: For chronic catarrhal or recessive endometritis, salpingitis, ovarian cysts, persistent luteal and other estrus cycle caused by disorder, we recommend the use of traditional Chinese medicine ingredients Jiuding reminders. It has a kidney yang, blood circulation, warm palace promote pregnancy, aphrodisiac effect. In addition, the decline in boar libido, spermatozoa, impotence, smoothing also have a certain therapeutic effect.