The importance of vitamin D to sows has not received enough attention. In recent trials in France and Germany, the efficacy of vitamin D has again been demonstrated. Studies have shown that vitamin D can reduce the stillbirth of sows and increase the weight of piglets. The effect of vitamin D on sow production has been addressed in two articles at the end of 2012 and early 2013. For example, studying the role of vitamin D in more than 200 gene expression is a relatively new research direction. Traditionally, the function of vitamin D is widely believed to promote the metabolism of calcium and phosphorus. For sows, this function is extremely important because sows not only need a lot of calcium to ensure the health and integrity of the bones, but also require a lot of calcium during the milking period. The role of vitamin D Here, we need to take a step back to understand why vitamin D can really do so much. Vitamin D is produced by the vitamin D in the skin after being irradiated with sunlight. Subsequently, it is converted into a stored form in the liver, which is then produced in the kidney. This form of storage, also its main form of circulation, is known as 25-hydroxyvitamin D3, also known as calcifediol. The active form of vitamin D is 1,25-(OH)2-D3, also known as calcitriol. The liver is an important organ that determines how much vitamin D is converted in the body. Therefore, we clearly understand why supplementing extra vitamin D3 is not enough to help sows and piglets achieve better health. In combination with the above process, it may be beneficial to directly supplement the calcifediol. Based on this theory, DSM has developed a product called lovastatin, a commercial form of calcifediol. In feed applications, one gram of this product replaces 500 IU of vitamin D3. Previous trials have shown that the level of calcifediol in the blood of sows is significantly increased in the sow's entire reproductive cycle compared to the level of equivalent vitamin D3 fed. The latest test Recently, DSM conducted two trials in France and Germany. The test animals were sows with an annual output of more than 30 weaned piglets. In the test group, the addition amount of the above-mentioned calcifediol was 4 g/ton of full-price material, and the addition amount of vitamin D3 in the control group was 2000 IU/ton of full-price material. The trial period included sow gestation and lactation, which continued for two consecutive breeding cycles to examine the improvement in reproductive performance of the sow. The results of the study showed that the number of stillbirths in the sows fed the test group of calcifediol was small. In the German trial, the stillbirth rate of the sow was reduced by 10%. In the trial results of French primiparous sows, this performance was more pronounced and the stillbirth rate was reduced by 13%. The possible mechanism of action is that ossified diol actively acts on the calcium and phosphorus balance in the sow and improves the intestinal absorption of calcium. This action ensures that there is enough calcium in the sow to prevent birth problems caused by calcium metabolism, such as dystocia and prolonged labor. In fact, the correlation between low levels of calcium in the blood, decreased muscle tone, and increased litter size is well known. In addition, the two studies found that feeding calcified glycol to sows throughout pregnancy and lactation increased calcium levels in the blood compared to standard vitamin D3. The concentration of calcium ions in the blood has a positive effect on the litter process. In the French test, the calcium concentration in the test treatment of the calcifediol group was about 0.51 mg/dl (dl: 1 liter = 100 ml), while the control group was about 0.31 mg/dl. This positive effect was confirmed by observing the entire delivery process of the sow. For example, supplementation with calcifediol reduces manual midwifery and labor interventions, such as artificial stimulation of uterine contractions. Another major change is the reduction in birth complications, such as fever and birth canal palpation. Calcium can promote rapid milking after delivery and increase milk production. Experimental studies have shown that piglets fed calcifediol have significantly increased weaning weight. The above research experiments further confirmed that based on the direct effect of increasing calcium absorption, calcifediol can improve the reproductive performance of sows during childbirth to weaning. Calcium balance is especially important for sows because they need to provide adequate milk while increasing muscle tone during production to ensure the survival rate of the litter and the optimal growth performance of the piglets. Stainless Steel Floor Drain,Stainless Steel Square Shower Drain,Stainless Steel Shower Floor Drain,Stainless Steel Tile Insert Floor Drain Kaiping City Jinqiang Hardware Products Co.,Ltd , https://www.jmkimpowerdrain.com