Piglet diarrhea is still the focus of industry experts, and the emphasis on breast milk quality is a common idea among experts.
Dr. Chen Jianfei of Harbin Veterinary Research Institute introduced that in 2011 pig diarrhea mainly infected piglets within 7 days of age, the onset range spread throughout the country, lasting for a long time (December 2010 - August 2011), repeated attacks (interval 2-3 Week), the incidence rate is high (70%-80%) and the mortality rate is high (83.3%).
Chen Jianfei believes that the main cause of piglet diarrhea in 2011 was swine epidemic diarrhea, and the contributors were porcine transmissible gastroenteritis and porcine rotavirus infection. He analyzed that there are four major reasons for the onset of newborn piglets: First, the stomach function of piglets is different from that of adult pigs. Within the first few hours after the birth of the piglet, no stomach acid is produced, so that bacteria and viruses enter the intestine. Second, piglets fail to eat colostrum or lack of breast milk to produce inadequate immunoglobulin absorption. Because neonatal piglets rely mainly on colostrum for passive immunization, porcine maternal antibodies rarely or not pass through the placenta to the piglet. Third, there is no effective and practical treatment in the industry. Fourth, no effective vaccines have been available in recent years. The productivity of commercial vaccines that can be purchased is not high, resulting in lower immunity of sows and gilts to the groups that cause viral diarrhea and insufficient provision of new piglets. Immunoglobulin.
Sun Xuemei, the chief technical officer of the Heinerchuan Pharmaceutical Dynamics Business Unit, believes that the onset of disease on different pig farms is not exactly the same, and the pathogens detected are also diverse. In the same way, the control effect on different farms is not the same. Pathogens should be mainly epidemic diarrhea type II virus, including rotavirus, blue ear disease, swine fever virus, boka virus, etc., there is a secondary infection of bacteria such as resistant E. coli, and toxic factors Also ubiquitous.
She believes that prevention and control of diarrhea should take the following ideas: First, the sow to control the body's virus before birth, eliminate toxins, give birth to healthy piglets, to ensure good quality and quantity of breast milk, in order to protect the safety of newborn piglets. In the second step, the newborn piglets should avoid infection as much as possible and strengthen the system. In the third step, the piglets with diarrhea should be treated with anti-lesion, detoxification and liver protection, supplemented with energy, water, and electrolytes to ensure that dehydration does not occur. Acidosis; moderate use of antibiotics to avoid secondary infection.
In response to viral diarrhea in pigs, Chen Jianfei also put forward his own control strategy: In daily production, attention should be paid to prevention, such as adopting multi-point feeding, all-in and full-out, attention to introduction, promotion of self-cultivation and self-sustaining, keeping pig house temperature in winter. , timely vaccination. At the same time, he suggested that inactivated vaccines should be used to vaccinate pig farms and breeding farms with stable outbreaks; live vaccines should be used for farms that are unstable and threatened by the disease; live pig farms must be used. The vaccine is immune.
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