Early weaning to eat colostrum concentrate should be appropriate

Hubei Province Xianning City Xian 'an District Shenzi Animal Husbandry Co., Ltd. produces 20,000 pigs annually. According to the current market situation, it will lose 1.2 million yuan this year. In the face of this situation, they look for answers from science and technology, summarize 15 years of pig raising experience, and scientifically and carefully manage sows and weaned pigs according to their characteristics at various growth stages. Try to wean piglets as early as possible Some farmers believe that the longer the piglets are suckled, the better. Tong Guangyao, general manager of the company, believes that this not only increases costs, but also reduces sow utilization and has other side effects. Maternal antibodies are effective only for 21 days, after which some invisible diseases are transmitted to piglets. As long as the temperature is between 25℃ and 30℃, piglets should be weaned on the 18th to 20th day after birth. For every 1 day early weaning, sows can eat 1 day less concentrate, and greatly reduce the incidence. If weaned on the 25th day, each sow will eat 91 yuan more concentrate, and the incidence of piglets is high. Scientific adjustment of pregnant sows concentrate amount They divide sows from conception to farrowing into four stages: 1~7 days, 8~37 days, 38~100 days, 101 days to farrowing. According to the growth needs of fetuses in sows at these four stages, each sow was fed 1.8 kg, 2.25 kg, 1.8 kg and 2.7~3.6 kg concentrate per day respectively. If the first stage is fed with more concentrate with high energy and high protein, the pregnancy rate will be reduced; the second and third stages of concentrate do not need to be fed too much, otherwise, the sow fat body is too fat, which may cause dystocia; the fourth stage is the long term of fetal fertility, and more concentrate should be fed appropriately to improve the birth weight and survival rate of piglets. If left unchecked, a sow can eat 3 - 3.5 kg of concentrate per day during pregnancy. After using the method of four stages of concentrate adjustment for pregnant sows, the cost of each sow can be reduced by about 70 yuan per production cycle, 2.4 litters per sow per year, and the total cost can be reduced by about 170 yuan. There is only one item, the company's 1100 sows a year to reduce losses of 190,000 yuan. Let littermates eat colostrum equally Tong Guangyao found that in the same litter piglets, a small number of piglets born later because they did not eat enough colostrum, can not obtain enough maternal antibodies, resulting in reduced survival rate. Therefore, he put part of the piglets born first and ate colostrum into the incubator, let the piglets born later eat colostrum, and then put the pigs born first out to continue feeding, so that the piglets of the same litter can basically eat colostrum equally, reducing the mortality rate, but also laying a foundation for their future growth. Nutrition reasonable but full of meat pig growth at various stages of nutrition needs are not the same. Tong Guangyao fed concentrate to piglets within 10 days after weaning. Thereafter, with the increase of weight of piglets, the feed ratio was changed to save input as much as possible. In this way, even if the nutrition of pigs is reasonable, it will not be excessive. -------------- Look carefully at the study