Nutritional level of pregnant sows

The nutritional characteristics of pregnant sows are to control the appropriate level of nutrition. China's feeding standards stipulate that when the weight of sows in the early pregnancy (80 days before pregnancy) is 90-120kg, the daily feed intake is 1.7kg, the weight is 120-150kg, the daily intake is 1.9kg, and the 150kg weight is more than 2kg. During the second trimester (one month before delivery), the body weights were 90-120 kg, 120-150 kg, and 150 kg, and the daily feed intake was 2.2 kg, 2.4 kg, and 2.5 kg of compound feed. Dietary nutrient levels ranged from 12% to 13% for crude protein, 2.8 to 3.0 Mcal/kg for digestion, 0.4% to 0.5% for lysine, 0.6% for calcium, and 0.5% for phosphorus. In addition, in addition to feed formula feed, in order to make sows have a sense of satiety and vitamin supplements, it is best with a variety of fine green feed or roughage.

For weaned sows that are lean after weaning, feed intake should be increased from the 10th day before mating, until breeding is resumed after breeding. For sows that have reached 70% of puberty in the first trimester of pregnancy, low pre-pregnancy levels and increased feed intake (according to feeding standards). For juvenile sows, due to their own development and the needs of the fetus, a gradual raising of the nutritional level of the feeding method should be adopted throughout the pregnancy period. No matter which type of sow, late pregnancy (90 days to 3 days before delivery) requires short-term excellent feeding, by feeding 1 kg of compound feed per head per day.

Nutritional Supplement

Nutritional supplements, also known as nutritional supplements, nutrients, dietary supplements, etc., are used as an auxiliary means of diet to supplement the Amino Acids, trace elements, Vitamins, Minerals, etc. required by the human body. Nutritional supplements can be composed of amino acids, polyunsaturated fatty acids, minerals and vitamins, or only one or more vitamins, or one or more dietary ingredients, except for amino acids, vitamins, minerals In addition to nutrients such as substances, it can also be composed of herbs or other plant components, or concentrates, extracts or compositions of the above components.

Unlike fortifiers, dietary supplements are not integrated with food. Most of them are pills, tablets, capsules, tablets, or oral liquids that are taken separately with meals.Nutrient supplements are not regular foods, nor are they food fortifiers.Nutritional supplements can be composed of amino acids, fatty acids, minerals and vitamins, or only consists of one or a variety of vitamins, can also be composed of one or more dietary ingredients, in addition to including amino acids, vitamins, minerals and other nutrients, also can have herbs or other plant components, or more ingredients of concentrate, extract or combination.

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