The heat stress caused by high temperature has a great influence on the normal performance of estrus, breeding, and pregnancy in pregnant sows. The conception rate is reduced, and miscarriage, stillbirth, and weak adolescence are significantly elevated. According to the actual production experience, the following effective measures can be taken to significantly reduce the incidence of sows and ensure their safety in summer: First, the whole group of sows 1. Open all the curtains to ensure circulation of the enclosure; 2. Feed green feed and baking soda to neutralize stomach acid and dredge intestinal tract; 3, to provide clean drinking water, add three substances in drinking water every day, one is "dimensional E antibody calcium plus zinc", the second is compound glucose saline 500 ~ 1000ml, third is vitamin C; 4, adjust the feeding time, 6 to 7 o'clock in the morning, the first meal 45% fine material, 12 o'clock noon the second meal 100% green material, evening 6 o'clock 55% fine material; 5, mixed drinking prevention of exogenous wind and heat of anti-virus medicine, can reduce the risk of environmental abortion and infectious abortion. Second, lactating sows A series of vaccines for the prevention of reproductive failure syndrome, such as parvovirus-J encephalitis, pseudorabies gene deletion vaccine, inactivated blue ear disease vaccine, swine fever spleen gonococcus vaccine, and lung infection-erythropoietin vaccine, were conducted between late lactation and weaning. Joint seedlings and so on. Avoid abortion-based reproductive failure syndrome. Third, pregnant sows The mixed feed is represented by the "Pregnant Health" as a representative of the fetus. In critical periods such as 8-14 gestational age (first blastocyst death peak), 23-25 ​​gestational age (second blastocyst death peak), 60-70 gestational age (third blastocyst death peak), etc. Use 10~20g/d to ensure blastocyst survival. Prevent physiological blastocyst death. Tri-layer Lamination,Three Layer Nonwoven Coated,Three Layer Laminates,Laminated Packaging Films,Breathable Lamination XINLE HUABAO MEDICAL PRODUCTS CO.,LTD. , https://www.golbaltravel.com