In animal husbandry, pigs are rare animals that produce many offspring. Usually a sow gives birth to 10-16 piglets. Therefore, in order to maintain the growth of piglets, sows must secrete large amounts of milk every day for the growth of piglets. The quality and quantity of pig milk directly affect the growth potential of piglets. With the help of targeted metabonomics, this paper analyzed the small and medium molecular metabolites (such as protein, amino acid, carbohydrate and lipid metabolism) in colostrum and normal milk of sows, and then determined what differentiated metabolites existed in the milk of sows of high and low lactation performance groups.
The results of this study will help to better understand the composition differences of high and low quality milk and the physiological status of sows, and provide useful information for human and animal nutrition.